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Allard-Gray A, Boakye I, Camara A, Eisenbeis L, Guimarães-Teixeira E, Sow O, Zielinski D, Campbell JR, Menzies D. Factors Associated With Discontinuation of Tuberculosis Preventive Treatment: Post Hoc Analysis of 2 Randomized, Controlled Trials. Clin Infect Dis 2023; 77:84-93. [PMID: 36949623 PMCID: PMC10320123 DOI: 10.1093/cid/ciad164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 03/10/2023] [Accepted: 03/20/2023] [Indexed: 03/24/2023] Open
Abstract
BACKGROUND Adherence to tuberculosis preventive treatment (TPT) is an important determinant of clinical benefit. We assessed the association of participant behaviors early in TPT with subsequent discontinuation. METHODS We used data from a phase 3 randomized trial and the preceding phase 2 trial to compare 4 months of rifampin to 9 months of isoniazid for TPT. We excluded participants whose providers discontinued TPT due to adverse events or tuberculosis disease. We analyzed 4 outcomes: discontinuing TPT within the first month of treatment, discontinuing TPT between the first and second month, discontinuing TPT after the second month, and completing treatment but not per protocol. We analyzed the association of outcomes with regimen and participant characteristics and 4 behavioral predictors of discontinuation recorded at the month 1 and month 2 follow-up visits: reporting symptoms of intolerance, missing >20% of doses, rescheduling appointments, and not bringing their medication bottle. RESULTS Overall, 6656 participants were included (phase 3, 5848; phase 2, 808), of whom 4318 (64.9%) completed treatment per protocol. Participant characteristics were inconsistently associated with discontinuation. Phase 3 trial participants with 1, 2, or 3-4 behavioral predictors at the month 1 follow-up had 5.0 (95% confidence interval, 3.6-6.7), 18.6 (13.3-26.1), and 79.4 (38.2-165.0), respectively, higher odds of discontinuing before the second month. The corresponding number of predictors at the month 2 follow-up had 1.8 (1.4-2.2), 4.7 (3.6-6.2), and 7.4 (4.6-11.9) higher odds of discontinuing before completing treatment; phase 2 findings were similar. CONCLUSIONS Four behavioral predictors recorded early in therapy were more strongly associated with subsequent discontinuation than participant characteristics, particularly when more than 1 behavioral predictor was recorded. Clinical Trials Registration. NCT00170209; NCT00931736.
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Affiliation(s)
- Alex Allard-Gray
- Indigenous Health Professions Program, McGill University, Montreal, Quebec, Canada
| | - Isaac Boakye
- Research & Development Unit, Komfo Anokye Teaching Hospital, Kumasi, Ghana
| | - Alioune Camara
- Department of Medical Sciences, Faculty of Health Sciences and Techniques, Gamal Abdel Nasser University of Conakry, Conakry, Guinea
| | - Lisa Eisenbeis
- Ministry of Health, Government of Alberta, Edmonton, Alberta, Canada
| | - Eleny Guimarães-Teixeira
- Department of Internal Medicine, Faculdade de Medicina do IDOMED/Estacio, Rio de Janeiro, Brazil
- Department of Internal Medicine, Escola de Medicina da Fundação Souza Marques, Rio de Janeiro, Brazil
| | - Oumou Sow
- Department of Medical Sciences, Faculty of Health Sciences and Techniques, Gamal Abdel Nasser University of Conakry, Conakry, Guinea
| | - David Zielinski
- Pediatric Respirology, Montreal Children's Hospital, McGill University Health Center Research Institute, Montreal, Quebec, Canada
| | - Jonathon R Campbell
- Departments of Medicine & Global and Public Health, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada
- McGill International TB Centre, Research Institute of the McGill University Health Center, Montreal, Quebec, Canada
- Respiratory Epidemiology and Clinical Research Unit, Centre for Outcomes Research & Evaluation, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Dick Menzies
- McGill International TB Centre, Research Institute of the McGill University Health Center, Montreal, Quebec, Canada
- Respiratory Epidemiology and Clinical Research Unit, Centre for Outcomes Research & Evaluation, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
- Montreal Chest Institute, Research Institute of the McGill University Health Center, Montreal, Quebec, Canada
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Round JM, Plitt SS, Eisenbeis L, Smyczek P, Gratrix J, Charlton C, Fathima S, O'Brien A. Examination of Care Milestones for Preventing Congenital Syphilis Transmission Among Syphilis-Infected Pregnant Women in Alberta, Canada: 2017-2019. Sex Transm Dis 2022; 49:477-483. [PMID: 35470347 DOI: 10.1097/olq.0000000000001640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND An infectious syphilis outbreak in Alberta has resulted in increased congenital syphilis (CS) cases. To shed light on potential risk factors, we used administrative data sets to examine care milestones for the prevention of CS among pregnant women diagnosed with syphilis, as well as correlates of women giving birth to infants with CS. METHODS Provincial administrative databases were used to identify and describe pregnant women diagnosed with any stage of infectious or noninfectious syphilis who gave birth in Alberta between January 1, 2017, and December 31, 2019. Data on prenatal care, syphilis screening, and syphilis medication dispensation were used to evaluate the care milestones. Clinical care and maternal demographics were assessed using logistic and linear regression analyses to determine correlates for missed care milestones or a newborn outcome of CS. RESULTS Of 182 syphilis-infected pregnant women, 63 (34.6%) delivered a newborn with CS. Overall, in the first trimester, 136 (75.1%) women had a health care visit, 72 (39.6%) had a prenatal care visit, 71 (39.0%) were screened for syphilis, and 44 (24.2%) were treated. Gestational time to treatment initiation (adjusted odds ratio, 1.04; 95% confidence interval, 1.02-1.06) and older maternal age at diagnosis (adjusted odds ratio: 1.28, 95% confidence interval, 1.08-1.50) were independently associated with CS outcomes. No variables were found to be independently associated with a health care visit, prenatal screening, or initiation of treatment. CONCLUSIONS Although nearly two-thirds of CS cases were prevented, there remained missed opportunities in the prevention of CS. Early treatment, which relies on timely access to prenatal care and screening, was the most important for the prevention of CS.
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Liu J, Eisenbeis L, Preston S, Burnett A, DiCarlo H, O'Brien Coon D. Post-Phalloplasty Urinary Function Test: A Novel Outcome Instrument to Capture Urinary Dysfunction and Quality of Life after Phalloplasty. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.01.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Warrington P, Tyrrell G, Choy K, Eisenbeis L, Long R, Cooper R. Prevalence of latent tuberculosis infection in Syrian refugees to Canada. Can J Public Health 2018; 109:8-14. [PMID: 29981073 PMCID: PMC6964495 DOI: 10.17269/s41997-018-0028-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Accepted: 11/02/2017] [Indexed: 11/17/2022]
Abstract
OBJECTIVES Canada has accepted more than 25,000 Syrian refugees fearing persecution in their homeland. Canadian guidelines recommend screening recent refugees from high incidence countries for tuberculosis (TB) and latent TB infection (LTBI). The prevalence of TB in this population is unknown. A refugee clinic in Edmonton presented a unique opportunity to estimate prevalence of TB and LTBI in Syrian refugees arriving in Canada. METHODS In January 2016, 100 consecutive Syrian refugees were screened for TB with clinical assessment and LTBI using QuantiFERON Gold In-Tube assay (QFT-GIT). Patients with positive QFT-GIT were referred to Edmonton Tuberculosis Clinic (ETBC) for evaluation and, if appropriate, offered prophylaxis. RESULTS No cases of active TB were found. Valid QFT-GIT were measured in 99 of 100 individuals and of these, nine (9%) were positive using a threshold concentration of blood interferon-γ greater than 0.35 IU/L. Eight of the nine patients attended follow-up appointments; of these, seven began LTBI prophylaxis and all seven (78%) completed same. CONCLUSION The 9% (95% confidence interval 3-15%) prevalence of LTBI was higher than expected in this population.
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Affiliation(s)
- Peter Warrington
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Gregory Tyrrell
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
- Provincial Laboratory for Public Health, Alberta Health Services, Edmonton, AB, Canada
| | - Kimberley Choy
- Public Health, Alberta Health Services, Edmonton, AB, Canada
| | - Lisa Eisenbeis
- Edmonton Tuberculosis Clinic, Alberta Health Services, Edmonton, AB, Canada
| | - Richard Long
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- School of Public Health, University of Alberta, Edmonton, AB, Canada
| | - Ryan Cooper
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.
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Eisenbeis L, Gao Z, Heffernan C, Yacoub W, Long R, Verma G. Contact investigation outcomes of Canadian-born adults with tuberculosis in Indigenous and non-Indigenous populations in Alberta. Can J Public Health 2016; 107:e106-e111. [PMID: 27348096 DOI: 10.17269/cjph.107.5255] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 01/18/2016] [Accepted: 12/20/2015] [Indexed: 11/17/2022]
Abstract
OBJECTIVES Contact investigations are a critical component of tuberculosis control in high-income countries. However, the relative success of conventional methods by population group and place of residence is unknown. This study compares outcomes of contact investigations of Canadian-born Indigenous tuberculosis cases living on- and off-reserve with other Canadian-born cases. METHODS In a retrospective analysis, Canadian-born adult culture-positive pulmonary TB cases (2001-2010) were identified. Characteristics of source cases and their contacts were compared by population group. Outcomes of contact investigations, including completion of recommended investigations and preventive therapy, were compared in multivariable analysis. RESULTS Of 171 cases of tuberculosis identified, 49 (29%) were Indigenous on-reserve, 62 (36%) Indigenous off-reserve, and 60 (35%) non-Indigenous or Canadian-born, "other". Indigenous people had more contacts identified per case compared to non-Indigenous patients. Case population group and smear status were the main predictors of the success of contact investigations. Of those recommended preventive therapy, close contacts of Indigenous cases on-reserve had the highest rate of completion, at 54%, vs. 41% and 37% for close contacts of Indigenous living off-reserve and Canadian-born "other" respectively (p = 0.02). Contacts of Indigenous cases living off-reserve had the greatest delay in assessment and the lowest rates of completion of assessment and preventive therapy. In multivariable analysis, population group, smear status of source case and proximity of contact were predictors of preventive therapy acceptance and/or completion. CONCLUSIONS Significant differences in outcomes of contact investigations were observed between population groups. The higher priority of contacts of smear-positive cases appears to influence efficiency of service delivery, regardless of population group. Jurisdictional differences in program delivery, resource availability and perceived risk of transmission likely influence outcomes of contact investigations.
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Affiliation(s)
- Lisa Eisenbeis
- Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Zhiwei Gao
- Department of Medicine, Memorial University of Newfoundland, St. John's, NL, Canada
| | | | - Wadieh Yacoub
- First Nations Inuit Health Branch, Health Canada, Alberta Region, Canada
| | - Richard Long
- Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Geetika Verma
- Department of Medicine, University of Alberta, Edmonton, AB, Canada.
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