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Lee H, Hwang KH. Unexpected focal fluorodeoxyglucose uptake in main organs; pass through or pass by? World J Clin Cases 2024; 12:1885-1899. [PMID: 38660550 PMCID: PMC11036514 DOI: 10.12998/wjcc.v12.i11.1885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/31/2024] [Accepted: 03/21/2024] [Indexed: 04/11/2024] Open
Abstract
Since the inception of fluorine-18 fluorodeoxyglucose (F-18 FDG), positron emission tomography/computed tomography (PET/CT) utilizing F-18 FDG has become widely accepted as a valuable imaging modality in the field of oncology, with global prevalence in clinical practice. Given that a single Torso PET/CT scan encompasses the anatomical region from the skull base to the upper thigh, the detection of incidental abnormal focal hypermetabolism in areas of limited clinical interest is both feasible and not uncommon. Numerous investigations have been undertaken to delineate the distinctive features of these findings, yet the outcomes have proven inconclusive. The incongruent results of these studies present a challenge for physicians, leaving them uncertain about the appropriate course of action. This article provides a succinct overview of the characteristics of fluorodeoxyglucose, followed by a comprehensive discussion of the imaging findings and clinical significance associated with incidental focal abnormal F-18 FDG activity in several representative organs. In conclusion, while the prevalence of unrecognized malignancy varies across organs, malignancies account for a substantial proportion, ranging from approximately one-third to over half, of incidental focal uptake. In light of these rates, physicians are urged to exercise vigilance in not disregarding unexpected uptake, facilitating more assured clinical decisions, and advocating for further active evaluation.
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Affiliation(s)
- Haejun Lee
- Department of Nuclear Medicine, Gachon University College of Medicine, Gil Medical Center, Incheon 21565, South Korea
| | - Kyung-Hoon Hwang
- Department of Nuclear Medicine, Gachon University College of Medicine, Gil Medical Center, Incheon 21565, South Korea
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Edström S, Hellquist BN, Sandström M, Sadanandan SA, Björkblom B, Melin B, Sjöberg RL. Antidepressants and survival in glioma-A registry-based retrospective cohort study. Neurooncol Pract 2024; 11:125-131. [PMID: 38496917 PMCID: PMC10940821 DOI: 10.1093/nop/npad057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024] Open
Abstract
Background Depression and treatment with antidepressant medication is common in patients with malignant glioma. However, the extent to which antidepressants may affect the disease is not fully understood. Therefore, the purpose of the present study was to investigate possible associations between treatment with antidepressant medication and survival in glioma patients. Methods We performed a registry-based cohort study including 1231 patients with malignant glioma (WHO grades 2, 3, and 4) having undergone surgery, and 6400 matched controls without glioma. All data were extracted from the RISK North database, which contains information from multiple national population-based registries in Sweden. Results Treatment with antidepressants is more common in patients with malignant glioma (27%), compared to controls (16%), P < .001. Treatment with antidepressants after surgery for glioma was significantly associated with poorer survival. These effects were observed both for selective serotonin reuptake inhibitors (SSRIs) and non-SSRIs. In grade 4 glioma, SSRI treatment was associated with a hazard ratio (HR) of 3.32 (95% CI 2.69-4.10, P < .001), and non-SSRI treatment a HR of 3.54 (95% CI 2.52-4.99, P < .001), compared to glioma patients without antidepressants. In grade 2-3 glioma, the HR for SSRI treatment was 3.26 (95% CI 2.19-4.85, P < .001), and for non-SSRI treatment was 7.71 (95% CI 4.22-14.12, P < .001). Conclusions Our results demonstrate a negative association between antidepressant medication and survival in glioma. Further research will be needed to clarify causation.
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Affiliation(s)
- Sonja Edström
- Department of Clinical Sciences, Neurosciences, Umeå University, Umeå, Sweden
| | | | - Maria Sandström
- Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden
| | | | | | - Beatrice Melin
- Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden
| | - Rickard L Sjöberg
- Department of Clinical Sciences, Neurosciences, Umeå University, Umeå, Sweden
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Del Rosario M, Chang J, Ziogas A, Clair K, Bristow RE, Tanjasiri SP, Zell JA. Differential Effects of Race, Socioeconomic Status, and Insurance on Disease-Specific Survival in Rectal Cancer. Dis Colon Rectum 2023; 66:1263-1272. [PMID: 35849491 PMCID: PMC10548716 DOI: 10.1097/dcr.0000000000002341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND National Comprehensive Cancer Network guideline adherence improves cancer outcomes. In rectal cancer, guideline adherence is distributed differently by race/ethnicity, socioeconomic status, and insurance. OBJECTIVE This study aimed to determine the independent effects of race/ethnicity, socioeconomic status, and insurance status on rectal cancer survival after accounting for differences in guideline adherence. DESIGN This was a retrospective study. SETTINGS The study was conducted using the California Cancer Registry. PATIENTS This study included patients aged 18 to 79 years diagnosed with rectal adenocarcinoma between January 1, 2004, and December 31, 2017, with follow-up through November 30, 2018. Investigators determined whether patients received guideline-adherent care. MAIN OUTCOME MEASURES ORs and 95% CIs were used for logistic regression to analyze patients receiving guideline-adherent care. Disease-specific survival analysis was calculated using Cox regression models. RESULTS A total of 30,118 patients were examined. Factors associated with higher odds of guideline adherence included Asian and Hispanic race/ethnicity, managed care insurance, and high socioeconomic status. Asians (HR, 0.80; 95% CI, 0.72-0.88; p < 0.001) and Hispanics (HR, 0.91; 95% CI, 0.83-0.99; p = 0.0279) had better disease-specific survival in the nonadherent group. Race/ethnicity were not factors associated with disease-specific survival in the guideline adherent group. Medicaid disease-specific survival was worse in both the nonadherent group (HR, 1.56; 95% CI, 1.40-1.73; p < 0.0001) and the guideline-adherent group (HR, 1.18; 95% CI, 1.08-1.30; p = 0.0005). Disease-specific survival of the lowest socioeconomic status was worse in both the nonadherent group (HR, 1.42; 95% CI, 1.27-1.59) and the guideline-adherent group (HR, 1.20; 95% CI, 1.08-1.34). LIMITATIONS Limitations included unmeasured confounders and the retrospective nature of the review. CONCLUSIONS Race, socioeconomic status, and insurance are associated with guideline adherence in rectal cancer. Race/ethnicity was not associated with differences in disease-specific survival in the guideline-adherent group. Medicaid and lowest socioeconomic status had worse disease-specific survival in both the guideline nonadherent group and the guideline-adherent group. See Video Abstract at http://links.lww.com/DCR/B954 . EFECTOS DIFERENCIALES DE LA RAZA, EL NIVEL SOCIOECONMICO COBERTURA SOBRE LA SUPERVIVENCIA ESPECFICA DE LA ENFERMEDAD EN EL CNCER DE RECTO ANTECEDENTES: El cumplimiento de las guías de la National Comprehensive Cancer Network mejora los resultados del cáncer. En el cáncer de recto, el cumplimiento de las guías se distribuye de manera diferente según la raza/origen étnico, nivel socioeconómico y el cobertura médica.OBJETIVO: Determinar los efectos independientes de la raza/origen étnico, el nivel socioeconómico y el estado de cobertura médica en la supervivencia del cáncer de recto después de tener en cuenta las diferencias en el cumplimiento de las guías.DISEÑO: Este fue un estudio retrospectivo.ENTORNO CLINICO: El estudio se realizó utilizando el Registro de Cáncer de California.PACIENTES: Pacientes de 18 a 79 años diagnosticados con adenocarcinoma rectal entre el 1 de enero de 2004 y el 31 de diciembre de 2017 con seguimiento hasta el 30 de noviembre de 2018. Los investigadores determinaron si los pacientes recibieron atención siguiendo las guías.PRINCIPALES MEDIDAS DE RESULTADO: Se utilizaron razones de probabilidad e intervalos de confianza del 95 % para la regresión logística para analizar a los pacientes que recibían atención con adherencia a las guías. El análisis de supervivencia específico de la enfermedad se calculó utilizando modelos de regresión de Cox.RESULTADOS: Se analizaron un total de 30.118 pacientes. Los factores asociados con mayores probabilidades de cumplimiento de las guías incluyeron raza/etnicidad asiática e hispana, seguro de atención administrada y nivel socioeconómico alto. Los asiáticos e hispanos tuvieron una mejor supervivencia específica de la enfermedad en el grupo no adherente HR 0,80 (95 % CI 0,72 - 0,88, p < 0,001) y HR 0,91 (95 % CI 0,83 - 0,99, p = 0,0279). La raza o el origen étnico no fueron factores asociados con la supervivencia específica de la enfermedad en el grupo que cumplió con las guías. La supervivencia específica de la enfermedad de Medicaid fue peor tanto en el grupo no adherente HR 1,56 (IC del 95 % 1,40 - 1,73, p < 0,0001) como en el grupo adherente a las guías HR 1,18 (IC del 95 % 1,08 - 1,30, p = 0,0005). La supervivencia específica de la enfermedad del nivel socioeconómico más bajo fue peor tanto en el grupo no adherente HR 1,42 (IC del 95 %: 1,27 a 1,59) como en el grupo adherente a las guías HR 1,20 (IC del 95 %: 1,08 a 1,34).LIMITACIONES: Las limitaciones incluyeron factores de confusión no medidos y la naturaleza retrospectiva de la revisión.CONCLUSIONES: La raza, el nivel socioeconómico y cobertura médica están asociados con la adherencia a las guías en el cáncer de recto. La raza/etnicidad no se asoció con diferencias en la supervivencia específica de la enfermedad en el grupo que cumplió con las guías. Medicaid y el nivel socioeconómico más bajo tuvieron peor supervivencia específica de la enfermedad tanto en el grupo que no cumplió con las guías como en los grupos que cumplieron. Consulte Video Resumen en http://links.lww.com/DCR/B954 . (Traducción- Dr. Francisco M. Abarca-Rendon).
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Affiliation(s)
- Michael Del Rosario
- Division of Hematology/Oncology, Department of Medicine, University of California, Irvine, Irvine, California
| | - Jenny Chang
- Department of Medicine, University of California, Irvine, Irvine, California
| | - Argyrios Ziogas
- Department of Medicine, University of California, Irvine, Irvine, California
| | - Kiran Clair
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of California, Irvine, Irvine, California
| | - Robert E. Bristow
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of California, Irvine, Irvine, California
| | - Sora P. Tanjasiri
- Department of Medicine, University of California, Irvine, Irvine, California
- Chao Family Comprehensive Cancer Center, University of California, Irvine, Irvine, California
| | - Jason A. Zell
- Division of Hematology/Oncology, Department of Medicine, University of California, Irvine, Irvine, California
- Department of Medicine, University of California, Irvine, Irvine, California
- Chao Family Comprehensive Cancer Center, University of California, Irvine, Irvine, California
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Franklyn J, Lomax J, Baker A, Abdalkoddus M, Hosking J, Coleman MG, Smolarek S. Geographical variations in long term colorectal cancer outcomes in England: a contemporary population analysis revealing the north-south divide in colorectal cancer survival. Surg Endosc 2023:10.1007/s00464-023-10003-2. [PMID: 36991267 DOI: 10.1007/s00464-023-10003-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/03/2023] [Indexed: 03/31/2023]
Abstract
BACKGROUND Regional variations in healthcare outcomes in England have been historically reported. This study analyses the variations in long term colorectal cancer survival across different regions in England. METHODS Relative survival analysis of population data obtained from all cancer registries in England between 2010 and 2014. RESULTS Totally, 167,501 patients were studied. Regions in the southern England had better outcomes with Southwest and Oxford registries having 63.5 and 62.7% 5 year relative survival. In contrast, Trent and Northwest cancer registries had 58.1% relative survival (p < 0.01). The regions in the north fared below the national average. The survival outcomes reflected socio-economic deprivation status, the best performing regions in the south having low levels of deprivation (5.3 and 6.5% having maximum deprivation in Southwest and Oxford, respectively). The regions with worst long term cancer outcomes had high levels of deprivation with 25% and 17% having high levels of deprivation in Northwest and Trent regions. CONCLUSION There are significant variations in long term colorectal cancer survival between different regions in England, southern England had better relative survival when compared with the northern regions. Disparities in socio-economic depravation status in different regions may be associated with worse colorectal cancer outcomes.
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Affiliation(s)
- Joshua Franklyn
- Department of Colorectal Surgery, University Hospitals Plymouth NHS Trust, Plymouth, PL6 8DH, UK.
| | - Joe Lomax
- Medical Statistics, Faculty of Health: Medicine, Dentistry and Human Sciences, University of Plymouth, Plymouth, UK
| | - Amy Baker
- Medical Statistics, Faculty of Health: Medicine, Dentistry and Human Sciences, University of Plymouth, Plymouth, UK
| | - Muhammad Abdalkoddus
- Department of Colorectal Surgery, University Hospitals Plymouth NHS Trust, Plymouth, PL6 8DH, UK
| | - Joanne Hosking
- Medical Statistics, Faculty of Health: Medicine, Dentistry and Human Sciences, University of Plymouth, Plymouth, UK
| | - Mark G Coleman
- Department of Colorectal Surgery, University Hospitals Plymouth NHS Trust, Plymouth, PL6 8DH, UK
| | - Sebastian Smolarek
- Department of Colorectal Surgery, University Hospitals Plymouth NHS Trust, Plymouth, PL6 8DH, UK
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Ammitzbøll G, Levinsen AKG, Kjær TK, Ebbestad FE, Horsbøl TA, Saltbæk L, Badre-Esfahani SK, Joensen A, Kjeldsted E, Halgren Olsen M, Dalton SO. Socioeconomic inequality in cancer in the Nordic countries. A systematic review. Acta Oncol 2022; 61:1317-1331. [DOI: 10.1080/0284186x.2022.2143278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Gunn Ammitzbøll
- Survivorship and Inequality in Cancer, Danish Cancer Society Research Center, Copenhagen, Denmark
- Danish Research Center for Equality in Cancer (COMPAS), Department of Clinical Oncology & Palliative Care, Zealand University Hospital, Næstved, Denmark
| | | | - Trille Kristina Kjær
- Survivorship and Inequality in Cancer, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Freja Ejlebæk Ebbestad
- Survivorship and Inequality in Cancer, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Trine Allerslev Horsbøl
- Survivorship and Inequality in Cancer, Danish Cancer Society Research Center, Copenhagen, Denmark
- National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
| | - Lena Saltbæk
- Survivorship and Inequality in Cancer, Danish Cancer Society Research Center, Copenhagen, Denmark
- Department of Clinical Oncology and Palliative Care, Zealand University Hospital, Næstved, Denmark
| | - Sara Koed Badre-Esfahani
- Department of Gynecology and Obstetrics, Aarhus University Hospital, Aarhus, Denmark
- Department of Public Health Programmes, Randers Regional Hospital, Randers, Denmark
| | - Andrea Joensen
- Section of Epidemiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Eva Kjeldsted
- Danish Research Center for Equality in Cancer (COMPAS), Department of Clinical Oncology & Palliative Care, Zealand University Hospital, Næstved, Denmark
| | - Maja Halgren Olsen
- Survivorship and Inequality in Cancer, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Susanne Oksbjerg Dalton
- Survivorship and Inequality in Cancer, Danish Cancer Society Research Center, Copenhagen, Denmark
- Danish Research Center for Equality in Cancer (COMPAS), Department of Clinical Oncology & Palliative Care, Zealand University Hospital, Næstved, Denmark
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Alsadhan N, Almaiman A, Pujades-Rodriguez M, Brennan C, Shuweihdi F, Alhurishi SA, West RM. A systematic review of methods to estimate colorectal cancer incidence using population-based cancer registries. BMC Med Res Methodol 2022; 22:144. [PMID: 35590277 PMCID: PMC9118801 DOI: 10.1186/s12874-022-01632-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 05/04/2022] [Indexed: 11/14/2022] Open
Abstract
Background Epidemiological studies of incidence play an essential role in quantifying disease burden, resource planning, and informing public health policies. A variety of measures for estimating cancer incidence have been used. Appropriate reporting of incidence calculations is essential to enable clear interpretation. This review uses colorectal cancer (CRC) as an exemplar to summarize and describe variation in commonly employed incidence measures and evaluate the quality of reporting incidence methods. Methods We searched four databases for CRC incidence studies published between January 2010 and May 2020. Two independent reviewers screened all titles and abstracts. Eligible studies were population-based cancer registry studies evaluating CRC incidence. We extracted data on study characteristics and author-defined criteria for assessing the quality of reporting incidence. We used descriptive statistics to summarize the information. Results This review retrieved 165 relevant articles. The age-standardized incidence rate (ASR) (80%) was the most commonly reported incidence measure, and the 2000 U.S. standard population the most commonly used reference population (39%). Slightly more than half (54%) of the studies reported CRC incidence stratified by anatomical site. The quality of reporting incidence methods was suboptimal. Of all included studies: 45 (27%) failed to report the classification system used to define CRC; 63 (38%) did not report CRC codes; and only 20 (12%) documented excluding certain CRC cases from the numerator. Concerning the denominator estimation: 61% of studies failed to state the source of population data; 24 (15%) indicated census years; 10 (6%) reported the method used to estimate yearly population counts; and only 5 (3%) explicitly explained the population size estimation procedure to calculate the overall average incidence rate. Thirty-three (20%) studies reported the confidence interval for incidence, and only 7 (4%) documented methods for dealing with missing data. Conclusion This review identified variations in incidence calculation and inadequate reporting of methods. We outlined recommendations to optimize incidence estimation and reporting practices. There is a need to establish clear guidelines for incidence reporting to facilitate assessment of the validity and interpretation of reported incidence. Supplementary Information The online version contains supplementary material available at 10.1186/s12874-022-01632-7.
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Affiliation(s)
- Norah Alsadhan
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Kingdom of Saudi Arabia. .,School of Medicine, Leeds Institute of Health Sciences, University of Leeds, Leeds, UK.
| | - Alaa Almaiman
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Mar Pujades-Rodriguez
- School of Medicine, Leeds Institute of Health Sciences, University of Leeds, Leeds, UK
| | - Cathy Brennan
- School of Medicine, Leeds Institute of Health Sciences, University of Leeds, Leeds, UK
| | - Farag Shuweihdi
- School of Medicine, Leeds Institute of Health Sciences, University of Leeds, Leeds, UK
| | - Sultana A Alhurishi
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Robert M West
- School of Medicine, Leeds Institute of Health Sciences, University of Leeds, Leeds, UK
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Impact of Socioeconomic Status on Cancer Incidence Risk, Cancer Staging, and Survival of Patients with Colorectal Cancer under Universal Health Insurance Coverage in Taiwan. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182212164. [PMID: 34831918 PMCID: PMC8625901 DOI: 10.3390/ijerph182212164] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/12/2021] [Accepted: 11/16/2021] [Indexed: 12/14/2022]
Abstract
This study examined the impact of socioeconomic status on colorectal cancer risk, staging, and survival under the National Health Insurance (NHI) system in Taiwan. Monthly salary and education level were used as measures of socioeconomic status to observe the risk of colorectal cancer among individuals aged 40 years or above in 2006-2015 and survival outcomes of patients with colorectal cancer until the end of 2016. Data from 286,792 individuals were used in this study. Individuals with a monthly salary ≤Q1 were at a significantly lower incidence risk of colorectal cancer than those with a monthly salary >Q3 (HR = 0.80, 95% CI = 0.74-0.85), while those with elementary or lower education were at a significantly higher risk than those with junior college, university, or higher education (HR = 1.18, 95% CI = 1.06-1.31). The results show that socioeconomic status had no significant impact on colorectal cancer stage at diagnosis. Although salary was not associated with their risk of mortality, patients with colorectal cancer who had elementary or lower education incurred a significantly higher risk of mortality than those who had junior college, university, or higher education (HR = 1.39, 95% CI = 1.07-1.77). Education level is a significant determinant of the incidence risk and survival in patients with colorectal cancer, but only income significantly impacts incidence risk.
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Educational inequalities and regional variation in colorectal cancer survival in Finland. Cancer Epidemiol 2020; 70:101858. [PMID: 33246249 DOI: 10.1016/j.canep.2020.101858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 11/06/2020] [Accepted: 11/07/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Previous studies have reported lower colorectal cancer (CRC) survival in patients with low compared to high educational levels. We investigated the impact of education on CRC survival by using both individual and area-based information on education. METHODS Patients diagnosed with CRC in Finland in 2007-2016 were followed up for death until the end of 2016. Age-standardized relative survival and relative excess risk of death (RER) were estimated by sex using period approach. RERs were adjusted for age, stage at diagnosis, cancer site, urbanity, hospital district and municipality by using Bayesian piecewise constant excess hazard models. Analyses were conducted including individual (basic, secondary, high) and area-based (quartiles Q1-Q4 based on the proportion of population with basic education) education separately as well as both measures in one model. RESULTS We analysed in all 24 462 CRC patients. There was a clear gradient in 5-year relative survival across education groups (men: basic 62 %, secondary 64 %, high 69 %; women: basic 61 %, secondary 67 %, high 71 %). Compared to the basic education group, RER in the high education group was significantly lower. This association was still present after including area-based education in the models (men: RER 0.72, 95 % Confidence interval (CI) 0.64-0.81; women: RER 0.76, 95 % CI 0.59-0.96). Area-based education revealed smaller effect estimates than individual education in CRC survival and no association for men. CONCLUSION Individual education information should be preferred over area-based when survival differences are studied by education. Educational differences in CRC survival are still present in Finland.
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Sjöström O, Dahlin AM, Silander G, Syk I, Melin B, Hellquist BN. Travel time to care does not affect survival for patients with colorectal cancer in northern Sweden: A data linkage study from the Risk North database. PLoS One 2020; 15:e0236799. [PMID: 32756574 PMCID: PMC7406033 DOI: 10.1371/journal.pone.0236799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 07/14/2020] [Indexed: 11/18/2022] Open
Abstract
Introduction Numerous prior studies, even from countries with free access to care, have associated long travel time to care with poor survival in patients with colorectal cancer. Methods This is a data-linkage study of all 3718 patients with colorectal cancer, diagnosed between 2007 and 2013 in Northern Sweden, one of the most sparsely populated areas in Europe. Travel time to nearest hospital was calculated based on GPS coordinates and multivariable Cox regression was used to analyse possible associations between travel time and cause-specific survival. Results No association between travel time and survival was observed, either in univariable analysis (colon HR 1.00 [95% CI 0.998–1.003]; rectal HR 0.998; [95% CI 0.995–1.002]) or in multivariable Cox regression analysis (colon HR 0.999 [95% CI 0.997–1.002]; rectal HR 0.997 [95% CI 0.992–1.002]). Conclusions In contrast to most other studies, no association between travel time and colorectal cancer survival was found; despite that longer travel time was associated with known risk factors for poorer outcome. In the Swedish health care setting, travel time does not appear to represent a barrier to care or to negatively influence outcomes.
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Affiliation(s)
- Olle Sjöström
- Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden
- * E-mail:
| | - Anna M. Dahlin
- Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden
| | - Gustav Silander
- Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden
| | - Ingvar Syk
- Department of Surgery, Skåne University Hospital, Lund University, Malmö, Sweden
| | - Beatrice Melin
- Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden
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Henriksson R. It is not just about molecules! Optimal cancer care for the future needs more research on external factors. Acta Oncol 2020; 59:373-375. [PMID: 32048539 DOI: 10.1080/0284186x.2020.1726458] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Roger Henriksson
- Department of Radiation Sciences, University of Umea, Umea, Sweden
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