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Colonetti T, Rodrigues Uggioni ML, Meller Dos Santos AL, Michels Uggioni N, Uggioni Elibio L, Balbinot EL, Grande AJ, Rosa MI. Self-sampling for HPV testing in cervical cancer screening: A scoping review. Eur J Obstet Gynecol Reprod Biol 2024; 296:20-51. [PMID: 38394715 DOI: 10.1016/j.ejogrb.2024.02.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 02/14/2024] [Accepted: 02/18/2024] [Indexed: 02/25/2024]
Abstract
Cervical cancer is the third most common gynecological cancer worldwide. Its origin is linked to intraepithelial lesions caused by high-risk Human Papillomavirus (HPV) types, detected in 99.7% of cases. Early screening is essential to prevent cancer development from these lesions. Molecular methods are more specific and offer the possibility of being performed through a self-collected sample by the patient, thus contributing to increasing screening coverage for this pathology. This study aim was to map the medical-scientific literature on existing protocols for self-sampling for HPV testing in cervical cancer screening. A search strategy was developed using the following keywords and their synonyms: "self-sampling," "professional sampling," and "HPV", on the databases: MEDLINE, Cochrane Library, Virtual Health Library - BVS, Scopus, National Institute for Health Research NHS EED, Web of Science, and EMBASE. The search strategy was formulated to identify relevant studies and describe their main characteristics, such as patient acceptance of self-sampling, cost differences between the tests used, and the accuracy of self-sampling compared to the gold standard test. A total of 876 studies were found, and 33 of those studies were included in this review. Out of these, 10 studies were domized clinical trials involving 46,751 patients, and 23 observational studies included 142,795 patients. Regarding acceptance, most studies reported a preference for self-sampling. Sensitivity analyses from various studies also showed that the low cost of self-sampling kits generally increased cost-effectiveness. The study concluded that using HPV testing on self-collected samples is a viable strategy for monitoring women with HPV.
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Affiliation(s)
- Tamy Colonetti
- Laboratory of Translational Biomedicine, University of Extremo Sul Catarinense (UNESC), Criciúma, SC, Brazil
| | | | | | | | - Laura Uggioni Elibio
- Laboratory of Translational Biomedicine, University of Extremo Sul Catarinense (UNESC), Criciúma, SC, Brazil
| | - Eduarda Letícia Balbinot
- Laboratory of Translational Biomedicine, University of Extremo Sul Catarinense (UNESC), Criciúma, SC, Brazil
| | - Antonio José Grande
- Laboratory of Evidence-Based Practice, State University of Mato Grosso do Sul, Av. Dom Antonio Barbosa (MS-080), 4155 - CEP 79115-898, Campo Grande, MS, Brazil
| | - Maria Inês Rosa
- Laboratory of Translational Biomedicine, University of Extremo Sul Catarinense (UNESC), Criciúma, SC, Brazil.
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Barquet-Muñoz SA, Arteaga-Gómez C, Díaz-López E, Rodríguez-Trejo A, Marquez-Acosta J, Aranda-Flores C. Current status and challenges in timely detection of cervical cancer in Mexico: expert consensus. Front Oncol 2024; 14:1383105. [PMID: 38606102 PMCID: PMC11007212 DOI: 10.3389/fonc.2024.1383105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 03/11/2024] [Indexed: 04/13/2024] Open
Abstract
Cervical cancer is a significant public health problem in low- and middle-income countries, accounting for 85% of new cases worldwide. Due to poorly organized screening programs, cervical cancer is more likely to develop in vulnerable groups who do not initiate or rarely undergo screening. Cervical cytology and detecting high-risk human papillomavirus types are the recommended screening tools. Further, these strategies allow for accurately identifying women at a higher risk of cervical cancer and establishing screening times. New detection tools, such as novel biomarkers or automatic HPV detection in the vagina or urine, can improve screening coverage. This review aims to identify the challenges faced by detection programs and screening tools in Mexico to provide evidence-based recommendations to improve early detection programs for cervical cancer.
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Affiliation(s)
| | | | - Elsa Díaz-López
- Colegio Mexicano de Especialistas en Ginecología y Obstetricia, Mexico City, Mexico
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Persaud N, Sabir A, Woods H, Sayani A, Agarwal A, Chowdhury M, de Leon-Demare K, Ibezi S, Jan SH, Katz A, LaFortune FD, Lewis M, McFarlane T, Oberai A, Oladele Y, Onyekwelu O, Peters L, Wong P, Lofters A. Recommandations pour des soins préventifs pour promouvoir l’équité en matière de santé. CMAJ 2023; 195:E1674-E1701. [PMID: 38081626 PMCID: PMC10718275 DOI: 10.1503/cmaj.230237-f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023] Open
Abstract
Contexte: Malgré des investissements importants dans un système de soins de santé public qui comprend des services préventifs, on continue d’observer des disparités évitables en matière de santé au Canada. L’équipe avait pour objectif de formuler des recommandations pour des soins de santé préventifs qui puissent améliorer l’équité en matière de santé par la priorisation des interventions efficaces à l’intention des groupes défavorisés. Méthodes: La ligne directrice a été élaborée par un comité composé de spécialistes en soins primaires et de membres de la patientèle, avec la contribution d’un groupe de patientes-et patientspartenaires ayant vécu diverses expériences. Après avoir sélectionné les sujets à prioriser, nous avons recensé les revues systématiques, les essais randomisés et contrôlés récents sur les méthodes de dépistage et d’autres études pertinentes sur l’efficacité du dépistage et de la prise en charge. Nous avons utilisé l’approche GRADE (Grading of Recommendations, Assessment, Development and Evaluation) pour formuler les recommandations et avons suivi le guide AGREE II (Appraisal of Guidelines for Research and Evaluation) pour rédiger le rapport. Il en a été de même avec les principes du Guidelines International Network pour la gestion des intérêts concurrents. Les recommandations ont été passées en revue par un comité externe d’experts en contenu avant d’être distribuées à des intervenants à l’échelle nationale pour approbation. Recommandations: Nous avons formulé 15 recommandations concernant le dépistage et d’autres soins préventifs et 1 recommandation de nature politique visant à améliorer l’accès aux soins primaires. Ainsi, nous recommandons de prioriser une stratégie de communication pour le dépistage du cancer colorectal à partir de l’âge de 45 ans et pour l’évaluation du risque de maladie cardiovasculaire pour lutter contre les iniquités en matière de santé et promouvoir la santé. Les interventions particulières qui devraient être déployées pour lutter contre les iniquités comprennent l’autodépistage du virus du papillome humain (VPH) et du VIH, et le test de libération de l’interféron γ pour l’infection tuberculeuse. Le dépistage de la dépression, de la toxicomanie, de la violence conjugale et de la pauvreté devrait également permettre aux personnes touchées d’accéder plus facilement à des interventions éprouvées. Nous recommandons une prise de contact systématique avec des professionnels de la santé en soins primaires pour les personnes défavorisées. Interprétation: Les interventions préventives éprouvées peuvent aider à combattre les iniquités en matière de santé si la priorité est accordée aux personnes défavorisées. Les médecins, les organisations de santé et les gouvernements devraient adopter des mesures fondées sur des données probantes et en faire le suivi s’ils veulent promouvoir l’équité en matière de santé partout au Canada.
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Affiliation(s)
- Nav Persaud
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont.
| | - Areesha Sabir
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Hannah Woods
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Ambreen Sayani
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Arnav Agarwal
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Muna Chowdhury
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Kathleen de Leon-Demare
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Somtochukwu Ibezi
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Saadia Hameed Jan
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Alan Katz
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Frantz-Daniel LaFortune
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Melanie Lewis
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Trudy McFarlane
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Anjali Oberai
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Yinka Oladele
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Onyema Onyekwelu
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Lisa Peters
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Patrick Wong
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
| | - Aisha Lofters
- Centre MAP pour des solutions de santé urbaine (Persaud, Sabir, Woods); Département de médecine familiale et communautaire (Persaud, Lofters), Université de Toronto; Département de médecine familiale et communautaire (Persaud), Hôpital St. Michael, Réseau universitaire de santé de Toronto; Institut de recherche de l'Hôpital Women's College (Sayani, Lofters), Hôpital Women's College, Toronto, Ont.; Centre Peter Gilgan pour les cancers féminins (Lofters), Hôpital Women's College, Toronto, Ont.; Division de médecine générale interne (Agarwal), Département de médecine, Université McMaster, Hamilton, Ont.; Département des méthodes, données et incidence de la recherche en santé (Agarwal), Université McMaster, Hamilton, Ont.; Université Dalhousie (Chowdhury), Halifax, N.-É.; École de sciences infirmières (de Leon-Demare), Faculté de sciences de la santé Rady, Université du Manitoba, Winnipeg, Man.; Département de médecine familiale (Ibezi), Saskatoon, Sask.; Département de médecine familiale (Jan, LaFortune, Onyekwelu), Université McGill, Montréal, Qc; Sciences de la santé communautaire et médecine familiale (Katz), Faculté de médecine Max Rady, Université du Manitoba, Winnipeg, Man.; Centre de santé de Port Elgin et des régions environnantes, Réseau de santé Horizon (Lewis Peters), Port Elgin, N.-B.; Association des médecins noirs de l'Ontario (McFarlane), Brampton, Ont.; École de médecine du Nord de l'Ontario (Oberai), Sudbury, Ont.; organisme African Cancer Support Group (Oladele), Calgary, Alb.; Centre de santé communautaire Parkdale Queen West (Wong), Toronto, Ont
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4
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King J, Flores YN, Meneses-León J, Hernández-Salazar S, Robles-Rivera K, Rivera-Paredez B, León-Maldonado L, Hernández-López R, Torres-Ibarra L, Lazcano-Ponce E, Salmerón J. Clinical Performance of hrHPV Primary Screening Using Vaginal versus Cervical Samples to Detect High-grade Intraepithelial Lesions. Cancer Prev Res (Phila) 2023; 16:681-687. [PMID: 37788346 DOI: 10.1158/1940-6207.capr-23-0134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 08/03/2023] [Accepted: 09/29/2023] [Indexed: 10/05/2023]
Abstract
High-risk human papillomavirus (hrHPV) testing is now the most recommended primary method for cervical cancer screening worldwide. Clinician-collected cervical sampling continues to be the main sampling method, but hrHPV vaginal self-sampling is an appealing alternative because of its greater acceptability and potentially higher cost-effectiveness. This study aimed to determine whether hrHPV vaginal self-sampling is comparable with clinician-collected cervical sampling for detecting histologically confirmed high-grade cervical intraepithelial neoplasia (CIN2/3) as part of a cervical cancer screening program in Mexico. We analyzed data from 5,856 women screened during a hrHPV-based screening study. Clinical performance and diagnostic efficiency metrics were estimated for the two sampling methods for the CIN3 and CIN2+ endpoints, using three triage strategies: HPV16/18 genotyping, HPV16/18/33/58 extended genotyping, and HPV16/18/31/33/58 extended genotyping. hrHPV-positivity was found in 801 (13.7%) cervical and 897 (15.3%) vaginal samples. All women with hrHPV-positive samples were referred to colposcopy, which detected 17 total CIN3 cases before considering retrospective triage strategies. Using the HPV16/18/31/33/58 extended genotyping strategy, 245 women had hrHPV-positive cervical samples and 269 had hrHPV-positive vaginal samples. Ten CIN3 cases were detected each among women with hrHPV-positive cervical samples and among those with hrHPV-positive vaginal samples when using this strategy, with no significant differences in sensitivity and specificity observed. We observe that self- and clinician-collected sampling methods are comparable for detecting CIN3 and CIN2+ regardless of the triage strategy used. These findings can help public health officials to develop more cost-effective cervical cancer screening programs that maximize participation. PREVENTION RELEVANCE We found that hrHPV vaginal self-sampling is comparable with hrHPV clinician cervical sampling when using any triage strategy to refer women to colposcopy, so self-sampling is a viable cervical screening method. Therefore, policymakers should consider incorporating self-sampling into cervical screening programs to increase screening coverage and reduce cervical cancer burden. See related Spotlight, p. 649.
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Affiliation(s)
- Jonathan King
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles (UCLA), Los Angeles, California
| | - Yvonne N Flores
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Morelos, Instituto Mexicano del Seguro Social, Colonia Centro, Cuernavaca, México
- Department of Health Policy and Management, Fielding School of Public Health, UCLA, Los Angeles, California
- Center for Cancer Prevention and Control Research and UCLA-Kaiser Permanente Center for Health Equity, Fielding School of Public Health, Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, California
| | - Joacim Meneses-León
- Research Center in Policy, Population and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Sonia Hernández-Salazar
- Research Center in Policy, Population and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Karina Robles-Rivera
- Research Center in Policy, Population and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Berenice Rivera-Paredez
- Research Center in Policy, Population and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Leith León-Maldonado
- Center for Population Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | | | - Leticia Torres-Ibarra
- Center for Population Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | | | - Jorge Salmerón
- Research Center in Policy, Population and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
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5
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Narvaez L, Viviano M, Dickson C, Jeannot E. The acceptability of HPV vaginal self-sampling for cervical cancer screening in Latin America: A systematic review. PUBLIC HEALTH IN PRACTICE 2023; 6:100417. [PMID: 37564780 PMCID: PMC10410574 DOI: 10.1016/j.puhip.2023.100417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/22/2023] [Accepted: 07/28/2023] [Indexed: 08/12/2023] Open
Abstract
Objective This review summarizes women's acceptability of vaginal self-sampling for cervical cancer screening in Latin America. Study design Systematic review. Method A systematic literature search was performed in PubMed, Web of Science, and Embase regarding the acceptance of HPV vaginal self-sampling by women over 18 years old. Articles were selected for research that was conducted in Latin America and published between January 1st, 1993, and December 31st, 2022. Results Fifteen publications were included. Eight publications reported an acceptance of HPV self-sampling as high as 80%, six papers found an acceptance rate between 50 and 80% and only one found an acceptance rate of less than 50%. Based on non-standardized questionnaires, women considered self-sampling more comfortable, easier, and less painful than conventional cytology. The procedure was associated with less embarrassment and a greater sense of privacy. Conclusion HPV vaginal-self sampling appears to be an acceptable screening method amongst eligible Latin American women.
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Affiliation(s)
- Luisa Narvaez
- Institute of Global Health - Faculty of Medicine, Chemin de Mines 9, 1202, Geneva, Switzerland
| | - Manuela Viviano
- Gynecology Division, Department of Obstetrics and Gynecology, Geneva University Hospitals, Boulevard de la Cluse 30, 1205, Geneva, Switzerland
| | - Cheryl Dickson
- Community Psychiatric Service, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Emilien Jeannot
- Institute of Global Health - Faculty of Medicine, Chemin de Mines 9, 1202, Geneva, Switzerland
- Community Psychiatric Service, Lausanne University Hospital (CHUV), Lausanne, Switzerland
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Persaud N, Sabir A, Woods H, Sayani A, Agarwal A, Chowdhury M, de Leon-Demare K, Ibezi S, Jan SH, Katz A, LaFortune FD, Lewis M, McFarlane T, Oberai A, Oladele Y, Onyekwelu O, Peters L, Wong P, Lofters A. Preventive care recommendations to promote health equity. CMAJ 2023; 195:E1250-E1273. [PMID: 37748784 PMCID: PMC10519166 DOI: 10.1503/cmaj.230237] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023] Open
Abstract
BACKGROUND Avoidable disparities in health outcomes persist in Canada despite substantial investments in a publicly funded health care system that includes preventive services. Our objective was to provide preventive care recommendations that promote health equity by prioritizing effective interventions for people experiencing disadvantages. METHODS The guideline was developed by a primary care provider-patient panel, with input from a patient-partner panel with diverse lived experiences. After selecting priority topics, we searched for systematic reviews and recent randomized controlled trials of screening and other relevant studies of screening accuracy and management efficacy. We used the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach to develop recommendations and followed the Appraisal of Guidelines for Research and Evaluation (AGREE II) reporting guidance. We managed competing interests using the Guideline International Network principles. The recommendations were externally reviewed by content experts and circulated for endorsement by national stakeholders. RECOMMENDATIONS We developed 15 screening and other preventive care recommendations and 1 policy recommendation on improving access to primary care. We recommend prioritized outreach for colorectal cancer screening starting at age 45 years and for cardiovascular disease risk assessment, to help address inequities and promote health. Specific interventions that should be rolled out in ways that address inequities include human papillomavirus (HPV) self-testing, HIV self-testing and interferon-γ release assays for tuberculosis infection. Screening for depression, substance use, intimate partner violence and poverty should help connect people experiencing specific disadvantages with proven interventions. We recommend automatic connection to primary care for people experiencing disadvantages. INTERPRETATION Proven preventive care interventions can address health inequities if people experiencing disadvantages are prioritized. Clinicians, health care organizations and governments should take evidence-based actions and track progress in promoting health equity across Canada.
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Affiliation(s)
- Nav Persaud
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont.
| | - Areesha Sabir
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Hannah Woods
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Ambreen Sayani
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Arnav Agarwal
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Muna Chowdhury
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Kathleen de Leon-Demare
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Somtochukwu Ibezi
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Saadia Hameed Jan
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Alan Katz
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Frantz-Daniel LaFortune
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Melanie Lewis
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Trudy McFarlane
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Anjali Oberai
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Yinka Oladele
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Onyema Onyekwelu
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Lisa Peters
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Patrick Wong
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
| | - Aisha Lofters
- MAP Centre for Urban Health Solutions (Persaud, Sabir, Woods); Department of Family and Community Medicine (Persaud, Lofters), University of Toronto; Department of Family and Community Medicine (Persaud), St Michael's Hospital, Unity Health Toronto; Women's College Hospital Research Institute (Sayani, Lofters), Women's College Hospital, Toronto, Ont.; Peter Gilgan Centre for Women's Cancers (Lofters), Women's College Hospital, Toronto, Ont.; Division of General Internal Medicine (Agarwal), Department of Medicine, McMaster University, Hamilton, Ont.; Department of Health Research Methods, Evidence and Impact (Agarwal), McMaster University, Hamilton, Ont.; Dalhousie University (Chowdhury), Halifax, NS; College of Nursing (de Leon-Demare), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Man.; Department of Family Medicine (Ibezi), Saskatoon, Sask.; Department of Family Medicine (Jan, LaFortune, Onyekwelu), McGill University, Montréal, Que.; Community Health Sciences and Family Medicine (Katz), Max Rady College of Medicine, University of Manitoba, Winnipeg, Man.; Port Elgin & Region Health Centre, Horizon Health Network (Lewis Peters), Port Elgin, NB; Black Physicians' Association of Ontario (McFarlane), Brampton, Ont.; Northern Ontario School of Medicine University (Oberai), Sudbury, Ont.; African Cancer Support Group (Oladele), Calgary, Alta.; Parkdale Queen West Community Health Centre (Wong), Toronto, Ont
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Mekuria SF, Timmermans S, Borgfeldt C, Jerkeman M, Johansson P, Linde DS. HPV self-sampling versus healthcare provider collection on the effect of cervical cancer screening uptake and costs in LMIC: a systematic review and meta-analysis. Syst Rev 2023; 12:103. [PMID: 37349822 PMCID: PMC10286394 DOI: 10.1186/s13643-023-02252-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 05/07/2023] [Indexed: 06/24/2023] Open
Abstract
BACKGROUND Cervical cancer is a major global health issue, with 89% of cases occurring in low- and middle-income countries (LMICs). Human papillomavirus (HPV) self-sampling tests have been suggested as an innovative way to improve cervical cancer screening uptake and reduce the burden of disease. The objective of this review was to examine the effect of HPV self-sampling on screening uptake compared to any healthcare provider sampling in LMICs. The secondary objective was to estimate the associated costs of the various screening methods. METHOD Studies were retrieved from PubMed, Embase, CINAHL, CENTRAL (by Cochrane), Web of Science, and ClinicalTrials.gov up until April 14, 2022, and a total of six trials were included in the review. Meta-analyses were performed mainly using the inverse variance method, by pooling effect estimates of the proportion of women who accepted the screening method offered. Subgroup analyses were done comparing low- and middle-income countries, as well as low- and high-risk bias studies. Heterogeneity of the data was assessed using I2. Cost data was collected for analysis from articles and correspondence with authors. RESULTS We found a small but significant difference in screening uptake in our primary analysis: RR 1.11 (95% CI: 1.10-1.11; I2 = 97%; 6 trials; 29,018 participants). Our sensitivity analysis, which excluded one trial that measured screening uptake differently than the other trials, resulted in a clearer effect in screening uptake: RR: 1.82 (95% CI: 1.67-1.99; I2 = 42%; 5 trials; 9590 participants). Two trials reported costs; thus, it was not possible to make a direct comparison of costs. One found self-sampling more cost-effective than the provider-required visual inspection with acetic acid method, despite the test and running costs being higher for HPV self-sampling. CONCLUSION Our review indicates that self-sampling improves screening uptake, particularly in low-income countries; however, to this date, there remain few trials and associated cost data. We recommend further studies with proper cost data be conducted to guide the incorporation of HPV self-sampling into national cervical cancer screening guidelines in low- and middle-income countries. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42020218504.
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Affiliation(s)
| | - Sydney Timmermans
- Department of Biomedical Sciences, University of Guelph, Guelph, Canada
- Department of Family Medicine, McGill University, Montreal, Canada
| | | | - Mats Jerkeman
- Division of Oncology, Lund University, 22185 Lund, Sweden
| | - Pia Johansson
- School of Health and Welfare, Halmstad University, Halmstad, Sweden
| | - Ditte Søndergaard Linde
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark
- Department of Obstetrics and Gynaecology, Odense University Hospital, Odense, Denmark
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8
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Fleider LA, de los Ángeles Tinnirello M, Gómez Cherey F, García MG, Cardinal LH, García Kamermann F, Tatti SA. High sensitivity and specificity rates of cobas® HPV test as a primary screening test for cervical intraepithelial lesions in a real-world setting. PLoS One 2023; 18:e0279728. [PMID: 36745662 PMCID: PMC9901754 DOI: 10.1371/journal.pone.0279728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 12/14/2022] [Indexed: 02/07/2023] Open
Abstract
Cervical carcinoma (CC) is the fourth most common malignancy among women. Screening with Papanicolau smear is linked to a reduction in CC incidence rates when screening programs have been developed. However, this technique has several limitations, including moderate sensitivity rates for detection of cervical preneoplastic HPV-related lesions. In this real-world study, we proposed to evaluate the sensitivity and specificity rates of cobas® test, which amplifies target DNA fragments by polymerase chain reaction and hybridization of nucleic acids for the detection of 14 HR-HPV types in a single analysis) used as primary screening test for CC and preneoplastic lesions in women aged 25-65 years in a large University Hospital in Buenos Aires. A total of 1044 patients were included in the sample (median age: 46 years); sensitivity and specificity rates for the HR-HPV test used as primary screening test were 98.66% (95% confidence interval [95CI]: 97.67-99.3%) and 87.15% (95CI: 84.93-89.15%), respectively. The positive predictive value was 88.47% (95CI: 86.54%-90.42%) and the negative predictive value was 98.48% (95CI: 97.75%-99.23%). The cobas® HR-HPV testing was highly sensitive and specific for the detection of CC and preneoplastic lesions in real practice.
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Affiliation(s)
- Laura Alicia Fleider
- OBGYN Department, Genital Tract Unit, Hospital de Clínicas “José de San Martín”, Buenos Aires University, Buenos Aires, Argentina
- * E-mail:
| | - María de los Ángeles Tinnirello
- OBGYN Department, Genital Tract Unit, Hospital de Clínicas “José de San Martín”, Buenos Aires University, Buenos Aires, Argentina
| | - Facundo Gómez Cherey
- OBGYN Department, Genital Tract Unit, Hospital de Clínicas “José de San Martín”, Buenos Aires University, Buenos Aires, Argentina
| | - María Gabriela García
- Molecular Infectious Disease Department, ManLab Laboratories, Buenos Aires, Argentina
| | - Lucía Helena Cardinal
- Gynecological Pathology Division, Pathology Department, Hospital de Clínicas “José de San Martín”, Buenos Aires University, Buenos Aires, Argentina
| | - Florencia García Kamermann
- Gynecological Pathology Division, Pathology Department, Hospital de Clínicas “José de San Martín”, Buenos Aires University, Buenos Aires, Argentina
| | - Silvio Alejandro Tatti
- Chief of OBGYN Department, Hospital de Clínicas “José de San Martín”, Buenos Aires University, Buenos Aires, Argentina
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9
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Sefuthi T, Nkonki L. A systematic review of economic evaluations of cervical cancer screening methods. Syst Rev 2022; 11:162. [PMID: 35945642 PMCID: PMC9361672 DOI: 10.1186/s13643-022-02017-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 07/04/2022] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE The aims of this systematic review were to (1) identify primary- and model-based economic evaluations of cervical cancer screening methods and to (2) provide a contextual summary of valuation outcomes associated with three types of cervical cancer screening tests: visual inspection with acetic acid, human papillomavirus deoxyribonucleic acid, and Papanicolaou smear. INTRODUCTION Cervical cancer screening is an important public health priority with the potential to improve the detection of precancerous lesions in high-risk females for early intervention and disease prevention. Test performance and cost-effectiveness differ based on the specific screening method used across different platforms. There is a need to appraise existing economic evaluations of cervical cancer screening methods. METHODS This review considered primary-based and model-based full economic evaluations of cervical cancer screening methods. The evaluation methods of interest included cost-effectiveness analysis, cost-utility analysis, cost-minimization analysis, cost-benefit analysis, and cost-consequence analysis. We searched Scopus, PubMed, National Health Economic Evaluation Database (NH EED), Cochrane, and the Health Economic Evaluation Database for full economic evaluations of cancer screening methods. No formal date restrictions were applied. Model-based and primary-based full economic evaluations were included. A critical appraisal of included studies was performed by the main investigator, while a second independent reviewer assessed critical appraisal findings for any inconsistencies. Data were extracted using a standardised data extraction tool for economic evaluations. The ultimate outcomes of costs, effectiveness, benefits, and utilities of cervical cancer screening modalities were extracted from included studies, analysed, and summarised. RESULTS From a total of 671 screened studies, 44 studies met the study inclusion criteria. Forty-three studies were cost-effectiveness analyses, one study reported both cost-utility and cost-effectiveness outcomes, and another study reported cost utilities of cervical cancer screening methods only. Human papillomavirus (HPV) DNA testing was reported as a dominant stand-alone screening test by 14 studies, while five studies reported visual inspection with acetic acid (VIA) as a dominant stand-alone screening test. Primary HPV screening strategies were dominant in 21 studies, while three studies reported cytology-based screening strategies as the dominant screening method. CONCLUSIONS Existing evidence indicates that HPV-based and VIA testing strategies are cost-effective, but this is dependent on setting. Our review suggests the limited cost-effectiveness of cytology-based testing, which may be due in part to the need for specific infrastructures and human resources. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42020212454 .
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Affiliation(s)
- Thatohatsi Sefuthi
- Division of Health Systems and Public Health, Global Health Department, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch, South Africa.
| | - Lungiswa Nkonki
- Health Economics, Division of Health Systems and Public Health, Global Health Department, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch, South Africa
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Barrera Ferro D, Bayer S, Brailsford S, Smith H. Improving intervention design to promote cervical cancer screening among hard-to-reach women: assessing beliefs and predicting individual attendance probabilities in Bogotá, Colombia. BMC Womens Health 2022; 22:212. [PMID: 35672816 PMCID: PMC9172610 DOI: 10.1186/s12905-022-01800-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 05/05/2022] [Indexed: 11/30/2022] Open
Abstract
Background Despite being a preventable disease, cervical cancer continues to be a public health concern, affecting mainly lower and middle-income countries. Therefore, in Bogotá a home-visit based program was instituted to increase screening uptake. However, around 40% of the visited women fail to attend their Pap smear test appointments. Using this program as a case study, this paper presents a methodology that combines machine learning methods, using routinely collected administrative data, with Champion’s Health Belief Model to assess women’s beliefs about cervical cancer screening. The aim is to improve the cost-effectiveness of behavioural interventions aiming to increase attendance for screening. The results presented here relate specifically to the case study, but the methodology is generic and can be applied in all low-income settings.
Methods This is a cross-sectional study using two different datasets from the same population and a sequential modelling approach. To assess beliefs, we used a 37-item questionnaire to measure the constructs of the CHBM towards cervical cancer screening. Data were collected through a face-to-face survey (N = 1699). We examined instrument reliability using Cronbach’s coefficient and performed a principal component analysis to assess construct validity. Then, Kruskal–Wallis and Dunn tests were conducted to analyse differences on the HBM scores, among patients with different poverty levels. Next, we used data retrieved from administrative health records (N = 23,370) to fit a LASSO regression model to predict individual no-show probabilities. Finally, we used the results of the CHBM in the LASSO model to improve its accuracy. Results Nine components were identified accounting for 57.7% of the variability of our data. Lower income patients were found to have a lower Health motivation score (p-value < 0.001), a higher Severity score (p-value < 0.001) and a higher Barriers score (p-value < 0.001). Additionally, patients between 25 and 30 years old and with higher poverty levels are less likely to attend their appointments (O.R 0.93 (CI: 0.83–0.98) and 0.74 (CI: 0.66–0.85), respectively). We also found a relationship between the CHBM scores and the patient attendance probability. Average AUROC score for our prediction model is 0.9.
Conclusion In the case of Bogotá, our results highlight the need to develop education campaigns to address misconceptions about the disease mortality and treatment (aiming at decreasing perceived severity), particularly among younger patients living in extreme poverty. Additionally, it is important to conduct an economic evaluation of screening options to strengthen the cervical cancer screening program (to reduce perceived barriers). More widely, our prediction approach has the potential to improve the cost-effectiveness of behavioural interventions to increase attendance for screening in developing countries where funding is limited.
Supplementary Information The online version contains supplementary material available at 10.1186/s12905-022-01800-3.
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Affiliation(s)
- David Barrera Ferro
- Southampton Business School, University of Southampton, Southampton, UK. .,Departamento de Ingeniería Industrial, Pontificia Universidad Javeriana, Bogotá, Colombia.
| | - Steffen Bayer
- Southampton Business School, University of Southampton, Southampton, UK
| | - Sally Brailsford
- Southampton Business School, University of Southampton, Southampton, UK
| | - Honora Smith
- Mathematical Sciences, University of Southampton, Southampton, UK
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Shin MB, Garcia PJ, Saldarriaga EM, Fiestas JL, Ásbjörnsdóttir KH, Iribarren SJ, Barnabas RV, Gimbel S. Cost of community-based human papillomavirus self-sampling in Peru: A micro-costing study. LANCET REGIONAL HEALTH. AMERICAS 2022; 8:100160. [PMID: 35528707 PMCID: PMC9075528 DOI: 10.1016/j.lana.2021.100160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Background Cost data of human papillomavirus (HPV) self-sampling programs from low-and-middle-income countries is limited. We estimated the total and unit costs associated with the Hope Project, a community-based HPV self-sampling social entrepreneurship in Peru. Methods We conducted a micro-costing analysis from the program perspective to determine the unit costs of (1) recruitment/training of community women (Hope Ladies); (2) Hope Ladies distributing HPV self-sampling kits in their communities and the laboratory testing; and (3) Hope Ladies linking screened women with follow-up care. A procedural manual was used to identify the program's activities. A structured questionnaire and in-depth interviews were conducted with administrators to estimate the resource/time associated with activities. We obtained unit costs for each input previously identified from budgets and expenditure reports. Findings From November 2018 to March 2020, the program recruited and trained 62 Hope Ladies who distributed 4,882 HPV self-sampling kits in their communities. Of the screened women, 586 (12%) tested HPV positive. The annual cost per Hope Lady recruited/trained was $147·51 (2018 USD). The cost per HPV self-sampling kit distributed/tested was $45·39, the cost per woman followed up with results was $55·64, and the cost per HPV-positive woman identified was $378·14. Personnel and laboratory costs represented 56·1% and 24·7% of the total programmatic cost, respectively. Interpretation Our findings indicate that implementation of a community-based HPV self-sampling has competitive prices, which increases its likelihood to be feasible in Peru. Further economic evaluation is needed to quantify the incremental benefits of HPV self-sampling compared to more established options such as Pap tests. Funding Thomas Francis Jr. Fellowship provided funding for data collection. The Hope Project was funded by grants from Grand Challenges Canada (TTS-1812-21131), Uniting for Health Innovation, Global Initiative Against HPV and Cervical Cancer, University of Manitoba, and the John E. Fogarty International Center (5D43TW009375-05).
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Affiliation(s)
- Michelle B. Shin
- School of Nursing, University of Washington, Seattle, WA, United States
| | - Patricia J. Garcia
- School of Public Health, Cayetano Heredia University, Lima, Peru
- Department of Global Health, University of Washington, Seattle, WA, United States
| | - Enrique M. Saldarriaga
- The Comparative Health Outcomes, Policy, and Economics (CHOICE) Institute, University of Washington, Seattle, WA, United States
| | - José L. Fiestas
- School of Public Health, Cayetano Heredia University, Lima, Peru
| | - Kristjana H Ásbjörnsdóttir
- Department of Epidemiology, University of Washington, Seattle, WA, United States
- Centre of Public Health Sciences, University of Iceland, Reykjavik, Iceland
| | - Sarah J. Iribarren
- Department of Biobehavioral Nursing and Health Informatics, University of Washington, Seattle, WA, United States
| | - Ruanne V. Barnabas
- Department of Global Health, University of Washington, Seattle, WA, United States
- Department of Epidemiology, University of Washington, Seattle, WA, United States
- Department of Medicine, University of Washington, Seattle, WA, United States
- Vaccine and Infectious Diseases Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
| | - Sarah Gimbel
- Department of Global Health, University of Washington, Seattle, WA, United States
- Department of Child, Family, and Population Health Nursing, University of Washington, Seattle, WA, United States
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Casas CPR, Albuquerque RDCRD, Loureiro RB, Gollner AM, Freitas MGD, Duque GPDN, Viscondi JYK. Cervical cancer screening in low- and middle-income countries: A systematic review of economic evaluation studies. Clinics (Sao Paulo) 2022; 77:100080. [PMID: 35905574 PMCID: PMC9335392 DOI: 10.1016/j.clinsp.2022.100080] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 05/04/2022] [Indexed: 11/28/2022] Open
Abstract
Economic assessments are relevant to support the decision to incorporate more cost-effective strategies to reduce Cervical Cancer (CC) mortality. This systematic review analyzes the economic evaluation studies of CC prevention strategies (HPV DNA-based tests and conventional cytology) in low- and middle-income countries. Medline, EMBASE, CRD, and LILACS were searched for economic evaluation studies that reported cost and effectiveness measures of HPV DNA-based tests for CC screening and conventional cytology in women, without age, language, or publication date restrictions. Selection and data extraction were carried out independently. For comparability of results, cost-effectiveness measures were converted to international dollars (2019). Report quality was assessed using the CHEERS checklist. The Dominance Matrix Ranking (DRM) was used to analyze and interpret the results. The review included 15 studies from 12 countries, with cost-effectiveness analyzes from the health system's perspective and a 3% discount rate. The strategies varied in age and frequency of screening. Most studies used the Markov analytical model, and the cost-benefit threshold was based on the per capita GDP of each country. The sensitivity analysis performed in most studies was deterministic. The completeness of the report was considered sufficient in most of the items evaluated by CHEERS. The Dominance Interpretation (DRM) varied; in 6 studies, the HPV test was dominant, 5 studies showed a weak dominance evaluating greater effectiveness of the HPV test at a higher cost, yet in 2 studies conventional cytology was dominant. Although the context-dependent nature of economic evaluations, this review points out the challenge of methodological standardization in the analytical models.
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Affiliation(s)
- Carmen Phang Romero Casas
- Centro de Desenvolvimento Tecnológico em Saúde (CDTS), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, RJ, Brazil.
| | | | - Rafaela Borge Loureiro
- Laboratório de Epidemiologia (Lab-Epi), Universidade Federal do Espírito Santo (UFES), Vitória, ES, Brazil
| | - Angela Maria Gollner
- Hospital Universitário da Universidade Federal de Juiz de Fora (HU-UFJF/ EBSERH), Juiz de Fora, MG, Brazil
| | - Marina Gonçalves de Freitas
- Câmara de Regulação do Mercado de Medicamentos (CMED), Agência Nacional de Vigilância Sanitária (ANVISA), Brazil
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Ramírez-Palacios P, Chen A, Flores YN, Crespi CM, Lazcano-Ponce E, Alvarez-Escobedo D, Torres-Ibarra L, Rivera-Paredez B, León-Maldonado L, Hernández-López R, Mendiola-Pastrana IR, Méndez-Hernández P, Cuzick J, Carmona E, Figueroa H, Montiel-Cordero F, Meneses-León J, Rao J, Salmerón J. Benefit of double-reading cytology smears as a triage strategy among high-risk human papillomavirus-positive women in Mexico. Cancer Cytopathol 2020; 128:715-724. [PMID: 32520446 DOI: 10.1002/cncy.22303] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 05/01/2020] [Accepted: 05/11/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND The goal of this study was to determine whether the detection of histologically confirmed cases of cervical high-grade squamous intraepithelial lesions or worse (HSIL+) can be increased by having each liquid-based cytology (LBC) slide read by 2 cytotechnologists as part of routine screening. METHODS Over 36,212 women aged 30 to 64 years participated in the Forwarding Research for Improved Detection and Access for Cervical Cancer Screening and Triage (FRIDA) Study in Mexico between 2013 and 2016. For each participant, 2 cervical samples were collected at the same clinic visit, one to test for high-risk human papillomavirus (hrHPV) and the other for LBC, which was used to triage those with a hrHPV positive result. LBC slides were evaluated by 7 cytotechnologists, with each slide read independently by 2 blinded cytotechnologists. All women with atypical cells of undetermined significance or a worse result were referred to colposcopy for further evaluation and diagnosis. Three pathologists evaluated the biopsy specimens to confirm the final HSIL+ diagnosis. The HSIL+ detection rates for the single versus double reading were estimated and compared. RESULTS A total of 3,914 women with a positive hrHPV result were triaged with LBC. The first and second cytology readings resulted in 43 HSIL+ cases detected; the double-reading strategy detected 9 additional HSIL+ cases, resulting in a total of 52 HSIL+ cases. The HSIL+ detection rate increased from 10.99/1000 with a single reading to 13.29/1000 with the double-reading strategy (P = .004). CONCLUSION A 20.9% increase in HSIL+ cases detected was achieved with a double reading of the LBC slides in this sample of hrHPV-positive women.
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Affiliation(s)
- Paula Ramírez-Palacios
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Delegación Morelos, Instituto Mexicano del Seguro Social, Cuernavaca, Mexico
| | - Aiyu Chen
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, California
| | - Yvonne N Flores
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Delegación Morelos, Instituto Mexicano del Seguro Social, Cuernavaca, Mexico
- Department of Health Policy and Management and Kaiser Permanente Center for Health Equity, Fielding School of Public Health, University of California, Los Angeles, California
- UCLA Cancer Prevention and Control Research Center, Fielding School of Public Health and Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California
| | - Catherine M Crespi
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, California
- UCLA Cancer Prevention and Control Research Center, Fielding School of Public Health and Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California
| | - Eduardo Lazcano-Ponce
- Centro de Investigación en Salud Poblacional. Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - Daniel Alvarez-Escobedo
- Unidad de Medicina Familiar, Hospital General Regional No. 1, Instituto Mexicano del Seguro Social, Cuernavaca, Mexico
| | - Leticia Torres-Ibarra
- Centro de Investigación en Salud Poblacional. Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - Berenice Rivera-Paredez
- Centro de Investigación en Salud Poblacional. Instituto Nacional de Salud Pública, Cuernavaca, Mexico
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | | | - Rubí Hernández-López
- Centro de Investigación en Salud Poblacional. Instituto Nacional de Salud Pública, Cuernavaca, Mexico
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Indira R Mendiola-Pastrana
- Centro de Investigación en Salud Poblacional. Instituto Nacional de Salud Pública, Cuernavaca, Mexico
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Pablo Méndez-Hernández
- Departamento de Calidad y Educación en Salud, Secretaria de Salud Tlaxcala, Santa Ana Chiautempan, Mexico
- Facultad de Ciencias de la Salud, Universidad Autónoma de Tlaxcala, Zacatelco, Mexico
| | - Jack Cuzick
- Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Queen Mary University of London, London, United Kingdom
| | | | - Héctor Figueroa
- Laboratorio de Citología, Laboratorio Estatal de Salud Pública, Tlaxcala, México
| | | | - Joacim Meneses-León
- Centro de Investigación en Salud Poblacional. Instituto Nacional de Salud Pública, Cuernavaca, Mexico
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Jianyu Rao
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California
| | - Jorge Salmerón
- Centro de Investigación en Salud Poblacional. Instituto Nacional de Salud Pública, Cuernavaca, Mexico
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
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Malone C, Barnabas RV, Buist DSM, Tiro JA, Winer RL. Cost-effectiveness studies of HPV self-sampling: A systematic review. Prev Med 2020; 132:105953. [PMID: 31911163 PMCID: PMC7219564 DOI: 10.1016/j.ypmed.2019.105953] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 12/06/2019] [Accepted: 12/16/2019] [Indexed: 02/06/2023]
Abstract
HPV self-sampling (HPV-SS) can increase cervical cancer screening participation by addressing barriers in high- and low- and middle-income settings. Successful implementation of HPV-SS programs will depend on understanding potential costs and health effects. Our objectives were to summarize the methods and results of published HPV-SS cost and cost-effectiveness studies, present implications of these results for HPV-SS program implementation, and identify knowledge gaps. We followed the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines. One reviewer searched online databases for articles published through June 12, 2019, identified eligible studies, and extracted data; a second reviewer checked extracted data for accuracy. Eligible studies used an economic model to compare HPV-SS outreach strategies to standard-of-care tests. Of 16 eligible studies, 14 reported HPV-SS could be a cost-effective strategy. Studies differed in model type, HPV-SS delivery methods, triage strategies for positive results, and target populations. Most (9/16) modeled HPV-SS in European screening programs, 6/16 targeted women who were underscreened for cervical cancer, and 5/16 modeled HPV-SS in low- and middle-income countries. The most commonly identified driver of HPV-SS cost-effectiveness was the level of increase in cervical cancer screening attendance. Lower HPV-SS material and testing costs, higher sensitivity to detect cervical precancer, and longer duration of underscreening among HPV-SS users were also associated with increased cost-effectiveness. Future HPV-SS models in high-income settings should explore the effect of widespread vaccination and new triage strategies such as partial HPV genotyping. Knowledge gaps remain about the cost-effectiveness of HPV-SS in low- and middle-income settings.
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Affiliation(s)
- Colin Malone
- Department of Epidemiology, University of Washington, Box 359933, 325 9th Ave, Seattle, WA 98104, USA.
| | - Ruanne V Barnabas
- Department of Global Health, University of Washington, Box 359931, 325 9th Ave, Seattle, WA 98104, USA.
| | - Diana S M Buist
- Kaiser Permanente Washington Health Research Institute,1730 Minor Ave, Suite 1600, Seattle, WA 98101, USA.
| | - Jasmin A Tiro
- Department of Clinical Sciences, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX 75390, USA.
| | - Rachel L Winer
- Department of Epidemiology, University of Washington, Box 359933, 325 9th Ave, Seattle, WA 98104, USA; Kaiser Permanente Washington Health Research Institute,1730 Minor Ave, Suite 1600, Seattle, WA 98101, USA.
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Hernández-López R, Lorincz AT, Torres-Ibarra L, Reuter C, Scibior-Bentkowska D, Warman R, Nedjai B, Mendiola-Pastrana I, León-Maldonado L, Rivera-Paredez B, Ramírez-Palacios P, Lazcano-Ponce E, Cuzick J, Salmerón J. Methylation estimates the risk of precancer in HPV-infected women with discrepant results between cytology and HPV16/18 genotyping. Clin Epigenetics 2019; 11:140. [PMID: 31606044 PMCID: PMC6790057 DOI: 10.1186/s13148-019-0743-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 09/12/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Vigilant management of women with high-risk human papillomavirus (hrHPV) is necessary in cancer screening programs. To this end, we evaluated the performance of S5 (targeting DNA methylation in HPV16, HPV18, HPV31, HPV33, and human gene EPB41L3) to predict cervical intraepithelial neoplasia grade 2 or higher (CIN2+) in a sample of hrHPV-infected women referred to colposcopy in the FRIDA Study, a large screening trial in Mexico. A nested case-control sample with women referred to colposcopy either by atypical squamous cells of undetermined significance or higher (ASCUS+) in cytology and/or positive for HPV types 16 or 18 was tested by S5. Seventy-nine cases of CIN2+ were age-matched to 237 controls without a diagnosis of CIN2+ ( RESULTS The S5 classifier separated women with CIN2+ from CONCLUSIONS S5 testing on hrHPV-positive women significantly increased diagnostic information compared to triage by HPV16/18 plus cytology and appears to have clinical utility as an additional test to substantially lessen burdens on colposcopy. TRIAL REGISTRATION The FRIDA Study is registered in ClinicalTrials.gov , number NCT02510027.
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Affiliation(s)
- Rubí Hernández-López
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos México
- Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma, Ciudad de México, México
| | - Attila T. Lorincz
- Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Queen Mary University of London, London, UK
| | - Leticia Torres-Ibarra
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos México
| | - Caroline Reuter
- Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Queen Mary University of London, London, UK
| | - Dorota Scibior-Bentkowska
- Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Queen Mary University of London, London, UK
| | - Rhian Warman
- Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Queen Mary University of London, London, UK
| | - Belinda Nedjai
- Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Queen Mary University of London, London, UK
| | - Indira Mendiola-Pastrana
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos México
| | - Leith León-Maldonado
- Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma, Ciudad de México, México
- Cátedra-CONACYT, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos México
| | - Berenice Rivera-Paredez
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos México
- Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma, Ciudad de México, México
| | - Paula Ramírez-Palacios
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Delegación Morelos, Instituto Mexicano del Seguro Social, Cuernavaca, Morelos México
| | - Eduardo Lazcano-Ponce
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos México
| | - Jack Cuzick
- Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Queen Mary University of London, London, UK
| | - Jorge Salmerón
- Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma, Ciudad de México, México
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Levi JE, Martins TR, Longatto-Filho A, Cohen DD, Cury L, Fuza LM, Villa LL, Eluf-Neto J. High-Risk HPV Testing in Primary Screening for Cervical Cancer in the Public Health System, São Paulo, Brazil. Cancer Prev Res (Phila) 2019; 12:539-546. [DOI: 10.1158/1940-6207.capr-19-0076] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 05/07/2019] [Accepted: 06/04/2019] [Indexed: 11/16/2022]
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Allen-Leigh B, Uribe-Zúñiga P, León-Maldonado L, Brown BJ, Lörincz A, Salmeron J, Lazcano-Ponce E. Barriers to HPV self-sampling and cytology among low-income indigenous women in rural areas of a middle-income setting: a qualitative study. BMC Cancer 2017; 17:734. [PMID: 29121873 PMCID: PMC5679364 DOI: 10.1186/s12885-017-3723-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 10/30/2017] [Indexed: 11/10/2022] Open
Abstract
Background Data is needed about barriers to self-collection of Human Papillomavirus (HPV) samples and cytology among low-income, disadvantaged women living in rural areas of lower-income countries as these women are at increased risk of cervical cancer mortality. Methods Individual interviews (n = 29), focus groups (n = 7, 5–11 participants) and discussion groups (n = 2, 18–25 participants) were organized with women from three indigenous ethnic groups residing in rural areas in Mexico, after they were provided with free, self-sampled HPV tests. These groups are low-income, underserved by healthcare and have historically been on the receiving end of racism and social exclusion. Descriptive, qualitative content analysis was done, including two cycles of coding. Results Interview and focus/discussion group data indicate women had limited understanding of HPV’s role in cervical cancer etiology. They identified HPV’s existence, that cytology detects cervical cancer, the need for regular testing and that cervical cancer is sexually transmitted. Organizational barriers to clinic-based cytology included irregular supplies of disposable speculums, distance to clinics and lack of clear communication by healthcare personnel. Women considered self-collected HPV-testing easy, less embarrassing and less painful than cytology, an opportunity for self-care and most felt they understood how to take a self-sample after a 20-min explanation. Some women feared hurting themselves when taking the self-sample or that they would take the sample incorrectly, which they worried would make the test useless. Attending HPV-testing in groups facilitated use by allowing women to discuss their doubts and fears before doing self-collection of the sample or to ask other women who were the first to do the self-sampling what the experience had been like (whether it hurt and how easy it was). Lack of indoor bathrooms was a barrier to doing HPV self-sampling at home, when those homes were resource-poor (one-room dwellings). Conclusions Low-income, indigenous Mexican women residing in rural, underserved areas identified their need for cervical cancer screening but encountered multiple barriers to cytology-based screening. They found a number of advantages of HPV self-sampled tests. Employing self-collected HPV-testing instead of cytology could resolve some but not all gender-related, organizational or technical quality-of-care issues within cervical cancer detection and control programs. Electronic supplementary material The online version of this article (10.1186/s12885-017-3723-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Betania Allen-Leigh
- Public Health Methods Department, Reproductive Health Division, Center for Population Health Research, National Institute of Public Health, Mexico City, Mexico
| | - Patricia Uribe-Zúñiga
- National Center for the Prevention and Control of HIV and AIDS (CENSIDA), Mexico City, Mexico
| | - Leith León-Maldonado
- CONACYT, Center for Population Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Brandon J Brown
- Center for Healthy Communities, Department of Social Medicine and Population Health, UCR School of Medicine, UC Irvine, Riverside, California, USA
| | - Attila Lörincz
- Center for Cancer Prevention, Wolfson Institute of Preventive Medicine, Queen Mary University of London, London, UK
| | - Jorge Salmeron
- Center for Population Health Research, National Institute of Public Health, Av. Universidad #655, Colonia Sta. Ma. Ahuacatitlán, 62508, Cuernavaca, Morelos, Mexico.,Epidemiology and Health Services Research Unit, Mexican Social Security Institute (IMSS), Cuernavaca, Morelos, Mexico
| | - Eduardo Lazcano-Ponce
- Center for Population Health Research, National Institute of Public Health, Av. Universidad #655, Colonia Sta. Ma. Ahuacatitlán, 62508, Cuernavaca, Morelos, Mexico.
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Tota JE, Bentley J, Blake J, Coutlée F, Duggan MA, Ferenczy A, Franco EL, Fung-Kee-Fung M, Gotlieb W, Mayrand MH, McLachlin M, Murphy J, Ogilvie G, Ratnam S. Introduction of molecular HPV testing as the primary technology in cervical cancer screening: Acting on evidence to change the current paradigm. Prev Med 2017; 98:5-14. [PMID: 28279264 DOI: 10.1016/j.ypmed.2016.11.029] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 11/26/2016] [Indexed: 01/18/2023]
Abstract
Since being introduced in the 1940s, cervical cytology - despite its limitations - has had unequivocal success in reducing cervical cancer burden in many countries. However, we now know that infection with human papillomavirus (HPV) is a necessary cause of cervical cancer and there is overwhelming evidence from large-scale clinical trials, feasibility studies and real-world experience that supports the introduction of molecular testing for HPV as the primary technology in cervical cancer screening (i.e., "HPV primary screening"). While questions remain about the most appropriate age groups for screening, screening interval and triage approach, these should not be considered barriers to implementation. Many countries are in various stages of adopting HPV primary screening, whereas others have not taken any major steps towards introduction of this approach. As a group of clinical experts and researchers in cervical cancer prevention from across Canada, we have jointly authored this comprehensive examination of the evidence to implement HPV primary screening. Our intention is to create a common understanding among policy makers, agencies, clinicians, researchers and other stakeholders about the evidence concerning HPV primary screening to catalyze the adoption of this improved approach to cervical cancer prevention. With the first cohort of vaccinated girls now turning 21, the age when routine screening typically begins, there is increased urgency to introduce HPV primary screening, whose performance may be less adversely affected compared with cervical cytology as a consequence of reduced lesion prevalence post-vaccination.
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Affiliation(s)
- Joseph E Tota
- Division of Cancer Epidemiology and Genetics, US National Cancer Institute, Rockville, MD, United States; Department of Oncology, McGill University, Montréal, Québec, Canada.
| | - James Bentley
- Department of Obstetrics & Gynecology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Jennifer Blake
- Society of Obstetricians and Gynaecologists of Canada, Ottawa, Ontario, Canada
| | - François Coutlée
- Département de microbiologie et infectiologie, Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - Máire A Duggan
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Alex Ferenczy
- Department of Pathology, McGill University, Montréal, Québec, Canada; Department of Obstetrics & Gynecology, McGill University, Montréal, Québec, Canada
| | - Eduardo L Franco
- Department of Oncology, McGill University, Montréal, Québec, Canada; Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montréal, Québec, Canada
| | - Michael Fung-Kee-Fung
- Department of Obstetrics and Gynecology, University of Ottawa, Ottawa, Ontario, Canada
| | - Walter Gotlieb
- Department of Obstetrics & Gynecology, McGill University, Montréal, Québec, Canada; Department of Oncology, McGill University, Montréal, Québec, Canada
| | - Marie-Hélène Mayrand
- Département d'obstétrique-gynécologie et Médecine Sociale et Préventive, Université de Montréal, Montréal, Québec, Canada
| | - Meg McLachlin
- Department of Pathology and Laboratory Medicine, Western University, London, Ontario, Canada
| | - Joan Murphy
- Department of Obstetrics & Gynecology, University of Toronto, Toronto, Ontario, Canada
| | - Gina Ogilvie
- Department of Family Practice, University of British Columbia, Vancouver, British Columbia, Canada; Department of Obstetrics & Gynecology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Sam Ratnam
- Department of Oncology, McGill University, Montréal, Québec, Canada; Division of Community Health and Humanities, Faculty of Medicine, Memorial University, St. John's, Newfoundland and Labrador, Canada
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Lin CY, Li L. Comparison of DNA testing strategies in monitoring human papillomavirus infection prevalence through simulation. BMC Infect Dis 2016; 16:642. [PMID: 27821079 PMCID: PMC5100169 DOI: 10.1186/s12879-016-1969-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 10/25/2016] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND HPV DNA diagnostic tests for epidemiology monitoring (research purpose) or cervical cancer screening (clinical purpose) have often been considered separately. Women with positive Linear Array (LA) polymerase chain reaction (PCR) research test results typically are neither informed nor referred for colposcopy. Recently, a sequential testing by using Hybrid Capture 2 (HC2) HPV clinical test as a triage before genotype by LA has been adopted for monitoring HPV infections. Also, HC2 has been reported as a more feasible screening approach for cervical cancer in low-resource countries. Thus, knowing the performance of testing strategies incorporating HPV clinical test (i.e., HC2-only or using HC2 as a triage before genotype by LA) compared with LA-only testing in measuring HPV prevalence will be informative for public health practice. METHOD We conducted a Monte Carlo simulation study. Data were generated using mathematical algorithms. We designated the reported HPV infection prevalence in the U.S. and Latin America as the "true" underlying type-specific HPV prevalence. Analytical sensitivity of HC2 for detecting 14 high-risk (oncogenic) types was considered to be less than LA. Estimated-to-true prevalence ratios and percentage reductions were calculated. RESULTS When the "true" HPV prevalence was designated as the reported prevalence in the U.S., with LA genotyping sensitivity and specificity of (0.95, 0.95), estimated-to-true prevalence ratios of 14 high-risk types were 2.132, 1.056, 0.958 for LA-only, HC2-only, and sequential testing, respectively. Estimated-to-true prevalence ratios of two vaccine-associated high-risk types were 2.359 and 1.063 for LA-only and sequential testing, respectively. When designated type-specific prevalence of HPV16 and 18 were reduced by 50 %, using either LA-only or sequential testing, prevalence estimates were reduced by 18 %. CONCLUSION Estimated-to-true HPV infection prevalence ratios using LA-only testing strategy are generally higher than using HC2-only or using HC2 as a triage before genotype by LA. HPV clinical testing can be incorporated to monitor HPV prevalence or vaccine effectiveness. Caution is needed when comparing apparent prevalence from different testing strategies.
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Affiliation(s)
- Carol Y. Lin
- Centers for Disease Control and Prevention, Atlanta, GA USA
| | - Ling Li
- United Arab Emirates University, Al Ain, UAE
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20
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León-Maldonado L, Wentzell E, Brown B, Allen-Leigh B, Torres-Ibarra L, Salmerón J, Billings DL, Thrasher JF, Lazcano-Ponce E. Perceptions and Experiences of Human Papillomavirus (HPV) Infection and Testing among Low-Income Mexican Women. PLoS One 2016; 11:e0153367. [PMID: 27149525 PMCID: PMC4858263 DOI: 10.1371/journal.pone.0153367] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 03/29/2016] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND HPV infection causes cervical cancer, a major contributor to morbidity and mortality among low-income Mexican women. Human papillomavirus (HPV) DNA testing is now a primary screening strategy in Mexico's early cervical cancer detection program (ECDP). Research on Mexican women's perceptions of HPV and testing is necessary for establishing culturally appropriate protocols and educational materials. Here, we explore perceptions about HPV and HPV-related risk factors among low-income Mexican ECDP participants. METHODS We conducted semi-structured interviews with 24 ECDP participants from two primary care health clinics in Michoacán state, Mexico. Interviews addressed women's understandings of and experiences with HPV and HPV testing. Analysis was inductive and guided by the Health Belief Model with a focus on gender. RESULTS Women's confusion about HPV and HPV screening caused emotional distress. They understood HPV to be a serious disease that would always cause severe symptoms, often characterizing it as analogous to HIV or inevitably carcinogenic. Women also attributed it to men's sexual behaviors, specifically infidelity and poor hygiene. Women described both sexes' desire for sex as natural but understood men's negative practices of masculinity, like infidelity, as the causes of women's HPV infection. Some women believed dirty public bathrooms or heredity could also cause HPV transmission. CONCLUSIONS These results are consistent with prior findings that geographically and economically diverse populations lack clear understandings of the nature, causes, or symptoms of HPV, even among those receiving HPV testing. Our findings also reveal that local cultural discourse relating to masculinity, along with failure to provide sufficient education to low-income and indigenous-language speaking patients, exacerbate women's negative emotions surrounding HPV testing. While negative emotions did not deter women from seeking testing, they could be ameliorated with better health education and communication.
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Affiliation(s)
- Leith León-Maldonado
- CONACYT, Instituto Nacional de Cancerología, Ciudad de México, México
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
| | - Emily Wentzell
- Department of Anthropology, The University of Iowa, Iowa City, IA, United States of America
| | - Brandon Brown
- Department of Social Medicine and Population Health, School of Medicine, University of California, Riverside, CA, United States of America
| | - Betania Allen-Leigh
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
| | - Leticia Torres-Ibarra
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
| | - Jorge Salmerón
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social, Cuernavaca, Morelos, México
| | - Deborah L. Billings
- Department of Health, Promotion, Education and Behavior, Arnold School of Public Health, University of South Carolina, Columbia, SC, United States of America
| | - James F. Thrasher
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
- Department of Health, Promotion, Education and Behavior, Arnold School of Public Health, University of South Carolina, Columbia, SC, United States of America
| | - Eduardo Lazcano-Ponce
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
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21
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Cho E, Kang MH, Choi KS, Suh M, Jun JK, Park EC. Cost-effectiveness of Korea's National Cervical Cancer Screening Program. Asian Pac J Cancer Prev 2014; 14:4329-34. [PMID: 23991998 DOI: 10.7314/apjcp.2013.14.7.4329] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cervical cancer, which is common in developing countries, is also a major health issue in Korea. Our aim was to evaluate the cost-effectiveness of Korea's National Cancer Screening Program (NCSP), implemented in 1999. MATERIALS AND METHODS The target population was Korean women 30 years or over who were invited to take part in the NCSP in 2002-2007. By merging NCSP records with Korean Central Cancer Registry data, patients diagnosed with cervical cancer who had been screened were assigned to a "screened group, " while patients diagnosed elsewhere were assigned to a "non-screened group. " Clinical outcomes were measured in terms of life-years saved (LYS), derived from 5-year mortality rates supplied by the Korean National Health Insurance Corporation and National Statistical Office. Direct and travel costs associated with screening were evaluated from the perspective of the payer, the NCSP. RESULTS A diagnosis via screening was associated with 2.30 LYS, and the incremental cost-effectiveness ratio (ICER) estimate for screening was 7,581,679 KW/LYS (6,727 USD/LYS). ICER estimates were lower for older patients (≥ 50 years) than younger patients (4,047,033 KW/ LYS vs 5,680,793 KW/LYS). The proportion of early-stage cancers detected was 16.3% higher in the screened group. CONCLUSIONS In light of Korea's per capita gross domestic product (32,272 USD in 2012), the current NCSP's incremental cost per LYS appears acceptable.
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Affiliation(s)
- Eun Cho
- College of Pharmacy, Sookmyung Women's University, Seoul, Korea.
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22
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Brebi P, Maldonado L, Noordhuis MG, Ili C, Leal P, Garcia P, Brait M, Ribas J, Michailidi C, Perez J, Soudry E, Tapia O, Guzman P, Muñoz S, Van Neste L, Van Criekinge W, Irizarry R, Sidransky D, Roa JC, Guerrero-Preston R. Genome-wide methylation profiling reveals Zinc finger protein 516 (ZNF516) and FK-506-binding protein 6 (FKBP6) promoters frequently methylated in cervical neoplasia, associated with HPV status and ethnicity in a Chilean population. Epigenetics 2013; 9:308-17. [PMID: 24241165 DOI: 10.4161/epi.27120] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Cervical cancer is a major health concern among women in Latin America due to its high incidence and mortality. Therefore, the discovery of molecular markers for cervical cancer screening and triage is imperative. The aim of this study was to use a genome wide DNA methylation approach to identify novel methylation biomarkers in cervical cancer. DNA from normal cervical mucosa and cervical cancer tissue samples from Chile was enriched with Methylated DNA Immunoprecipitation (MeDIP), hybridized to oligonucleotide methylation microarrays and analyzed with a stringent bioinformatics pipeline to identify differentially methylated regions (DMRs) as candidate biomarkers. Quantitative Methylation Specific PCR (qMSP) was used to study promoter methylation of candidate DMRs in clinical samples from two independent cohorts. HPV detection and genotyping were performed by Reverse Line Blot analysis. Bioinformatics analysis revealed GGTLA4, FKBP6, ZNF516, SAP130, and INTS1 to be differentially methylated in cancer and normal tissues in the Discovery cohort. In the Validation cohort FKBP6 promoter methylation had 73% sensitivity and 80% specificity (AUC = 0.80). ZNF516 promoter methylation was the best biomarker, with both sensitivity and specificity of 90% (AUC = 0.92), results subsequently corroborated in a Prevalence cohort. Together, ZNF516 and FKBP6 exhibited a sensitivity of 84% and specificity of 81%, when considering both cohorts. Our genome wide DNA methylation assessment approach (MeDIP-chip) successfully identified novel biomarkers that differentiate between cervical cancer and normal samples, after adjusting for age and HPV status. These biomarkers need to be further explored in case-control and prospective cohorts to validate them as cervical cancer biomarkers.
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Affiliation(s)
- Priscilla Brebi
- Otolaryngology Department; Head and Neck Cancer Research Division; The Johns Hopkins University School of Medicine; Baltimore, MD USA; School of Medicine; Department of Pathology; Molecular Pathology Laboratory; Universidad de La Frontera; BIOREN-CEGIN; Temuco, Chile
| | - Leonel Maldonado
- Otolaryngology Department; Head and Neck Cancer Research Division; The Johns Hopkins University School of Medicine; Baltimore, MD USA
| | - Maartje G Noordhuis
- Otolaryngology Department; Head and Neck Cancer Research Division; The Johns Hopkins University School of Medicine; Baltimore, MD USA; Department of Gynecologic Oncology; University Medical Center Groningen; Groningen, the Netherlands
| | - Carmen Ili
- Otolaryngology Department; Head and Neck Cancer Research Division; The Johns Hopkins University School of Medicine; Baltimore, MD USA; School of Medicine; Department of Pathology; Molecular Pathology Laboratory; Universidad de La Frontera; BIOREN-CEGIN; Temuco, Chile
| | - Pamela Leal
- Otolaryngology Department; Head and Neck Cancer Research Division; The Johns Hopkins University School of Medicine; Baltimore, MD USA; School of Medicine; Department of Pathology; Molecular Pathology Laboratory; Universidad de La Frontera; BIOREN-CEGIN; Temuco, Chile
| | - Patricia Garcia
- School of Medicine; Department of Pathology; Molecular Pathology Laboratory; Universidad de La Frontera; BIOREN-CEGIN; Temuco, Chile
| | - Mariana Brait
- Otolaryngology Department; Head and Neck Cancer Research Division; The Johns Hopkins University School of Medicine; Baltimore, MD USA; Clinical Research Coordination; Instituto Nacional de Câncer; Rio de Janeiro, Brazil
| | - Judit Ribas
- Pharmacology Unit; Department of Experimental Medicine; University of Lleida; Lleida, Spain
| | - Christina Michailidi
- Otolaryngology Department; Head and Neck Cancer Research Division; The Johns Hopkins University School of Medicine; Baltimore, MD USA
| | - Jimena Perez
- Otolaryngology Department; Head and Neck Cancer Research Division; The Johns Hopkins University School of Medicine; Baltimore, MD USA
| | - Ethan Soudry
- Otolaryngology Department; Head and Neck Cancer Research Division; The Johns Hopkins University School of Medicine; Baltimore, MD USA
| | - Oscar Tapia
- School of Medicine; Department of Pathology; Molecular Pathology Laboratory; Universidad de La Frontera; BIOREN-CEGIN; Temuco, Chile
| | - Pablo Guzman
- School of Medicine; Department of Pathology; Molecular Pathology Laboratory; Universidad de La Frontera; BIOREN-CEGIN; Temuco, Chile
| | - Sergio Muñoz
- School of Medicine; Department of Public Health; Universidad de La Frontera; Temuco, Chile
| | | | - Wim Van Criekinge
- MDxHealth PharmacoDx; Ghent, Belgium; BIOBIX; Department of Bioscience Engineering; Ghent University; Ghent Belgium
| | - Rafael Irizarry
- Bloomberg School of Public Health; Biostatistics Department; The Johns Hopkins University; Baltimore, MD USA
| | - David Sidransky
- Otolaryngology Department; Head and Neck Cancer Research Division; The Johns Hopkins University School of Medicine; Baltimore, MD USA
| | - Juan C Roa
- School of Medicine; Department of Pathology; Molecular Pathology Laboratory; Universidad de La Frontera; BIOREN-CEGIN; Temuco, Chile; School of Medicine; Department of Pathology; Pontificia Universidad Católica de Chile; Santiago, Chile
| | - Rafael Guerrero-Preston
- Otolaryngology Department; Head and Neck Cancer Research Division; The Johns Hopkins University School of Medicine; Baltimore, MD USA
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Villa LL. Cervical Cancer in Latin America and the Caribbean: The Problem and the Way to Solutions. Cancer Epidemiol Biomarkers Prev 2012; 21:1409-13. [DOI: 10.1158/1055-9965.epi-12-0147] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Ferreccio C, Van De Wyngard V, Olcay F, Domínguez MA, Puschel K, Corvalán AH, Franceschi S, Snijders PJ. High-risk HPV infection after five years in a population-based cohort of Chilean women. Infect Agent Cancer 2011; 6:21. [PMID: 22087645 PMCID: PMC3269983 DOI: 10.1186/1750-9378-6-21] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Accepted: 11/16/2011] [Indexed: 12/03/2022] Open
Abstract
Background The need to review cervical cancer prevention strategies has been triggered by the availability of new prevention tools linked to human papillomavirus (HPV): vaccines and screening tests. To consider these innovations, information on HPV type distribution and natural history is necessary. This is a five-year follow-up study of gynecological high-risk (HR) HPV infection among a Chilean population-based cohort of women. Findings A population-based random sample of 969 women from Santiago, Chile aged 17 years or older was enrolled in 2001 and revisited in 2006. At both visits they answered a survey on demographics and sexual history and provided a cervical sample for HPV DNA detection (GP5+/6+ primer-mediated PCR and Reverse line blot genotyping). Follow-up was completed by 576 (59.4%) women; 45 (4.6%) refused participation; most losses to follow-up were women who were unreachable, no longer eligible or had missing samples. HR-HPV prevalence increased by 43%. Incidence was highest in women < 20 years of age (19.4%) and lowest in women > 70 (0%); it was three times higher among women HR-HPV positive versus HPV negative at baseline (25.5% and 8.3%; OR 3.8, 95% CI 1.8-8.0). Type-specific persistence was 35.3%; it increased with age, from 0% in women < 30 years of age to 100% in women > 70. An enrollment Pap result ASCUS or worse was the only risk factor for being HR-HPV positive at both visits. Conclusions HR-HPV prevalence increased in the study population. All HR-HPV infections in women < 30 years old cleared, supporting the current recommendation of HR-HPV screening for women > 30 years.
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Affiliation(s)
- Catterina Ferreccio
- División de Salud Pública y Medicina Familiar, Escuela de Medicina Pontificia Universidad Católica de Chile, Marcoleta 434, Santiago 8330073, Chile.
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