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Gallagher RS, Karsalia R, Borja AJ, Malhotra EG, Punchak MA, Na J, McClintock SD, Malhotra NR. Low Household Income Increases Hospital Length of Stay and Decreases Home Discharge Rates in Lumbar Fusion. Global Spine J 2024:21925682241239609. [PMID: 38514934 DOI: 10.1177/21925682241239609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/23/2024] Open
Abstract
STUDY DESIGN Retrospective Matched Cohort Study. OBJECTIVES Low median household income (MHI) has been correlated with worsened surgical outcomes, but few studies have rigorously controlled for demographic and medical factors at the patient level. This study isolates the relationship between MHI and surgical outcomes in a lumbar fusion cohort using coarsened exact matching. METHODS Patients undergoing single-level, posterior lumbar fusion at a single institution were consecutively enrolled and retrospectively analyzed (n = 4263). Zip code was cross-referenced to census data to derive MHI. Univariate regression correlated MHI to outcomes. Patients with low MHI were matched to those with high MHI based on demographic and medical factors. Outcomes evaluated included complications, length of stay, discharge disposition, 30- and 90 day readmissions, emergency department (ED) visits, reoperations, and mortality. RESULTS By univariate analysis, MHI was significantly associated with 30- and 90 day readmission, ED visits, reoperation, and non-home discharge, but not mortality. After exact matching (n = 270), low-income patients had higher odds of non-home discharge (OR = 2.5, P = .016) and higher length of stay (mean 100.2 vs 92.6, P = .02). There were no differences in surgical complications, ED visits, readmissions, or reoperations between matched groups. CONCLUSIONS Low MHI was significantly associated with adverse short-term outcomes from lumbar fusion. A matched analysis controlling for confounding variables uncovered longer lengths of stay and higher rates of discharge to post-acute care (vs home) in lower MHI patients. Socioeconomic disparities affect health beyond access to care, worsen surgical outcomes, and impose costs on healthcare systems. Targeted interventions must be implemented to mitigate these disparities.
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Affiliation(s)
- Ryan S Gallagher
- Department of Neurosurgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Ritesh Karsalia
- Department of Neurosurgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Austin J Borja
- Department of Neurosurgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Emelia G Malhotra
- Department of Neurosurgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Maria A Punchak
- Department of Neurosurgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Jianbo Na
- University of Pennsylvania, Philadelphia, PA, USA
| | - Scott D McClintock
- The West Chester Statistical Institute and Department of Mathematics, West Chester University, West Chester, PA, USA
| | - Neil R Malhotra
- Department of Neurosurgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
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Kang H, Nam CM, Choi DW, Park S. Effects of ranitidine and nizatidine on the risk of gastrointestinal cancer. Front Oncol 2023; 13:1182174. [PMID: 37576886 PMCID: PMC10415903 DOI: 10.3389/fonc.2023.1182174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 07/10/2023] [Indexed: 08/15/2023] Open
Abstract
Purpose Gastrointestinal (GI) cancer occurs in digestive organs such as the stomach, colon, liver, esophagus, and pancreas. About 83,034 cases occurred in Korea alone in 2020. Dietary factors, alcohol consumption, Helicobacter pylori (H. pylori), and lifestyle factors increase the incidence of diseases such as gastritis, peptic ulcer, pancreatitis, and gastroesophageal reflux disease (GERD), which can develop into GI cancer. However, in 2019, the US Food and Drug Administration announced that the drugs ranitidine and nizatidine, which are used for digestive disorders, contain carcinogens. In this study, we investigated the effects of ranitidine and nizatidine on the development of GI cancer. Materials and methods In this study, using National Health Insurance Service-National Sample Cohort (NHIS-NSC) version 2.5 (updated from 2002 to 2019), subjects who developed GI cancer were enrolled in the case group, and those who were at risk of, but did not develop, cancer were enrolled in the control group. Thereafter, risk-set matching was performed (1:3 ratio) by sex and age at the time of diagnosis of cancer in the case group. Through this procedure, 22,931 cases and 68,793 controls were identified. The associations of ranitidine and/or nizatidine with GI cancer were confirmed by adjusted odds ratios (aORs) and 95% confidence intervals (CIs) calculated through conditional logistic regression analysis. Results The aORs of ranitidine and/or nizatidine users were lower than those of nonusers in all average prescription days groups (< 30 days/year: aOR [95% CI] = 0.79 [0.75-0.82]; 30-59 days/year: aOR [95% CI] = 0.66 [0.59-0.73]; 60-89 days/year: aOR [95% CI] = 0.69 [0.59-0.81]; ≥ 90 days/year: aOR [95% CI] = 0.69 [0.59-0.79]). Sensitivity analyses were conducted with different lag periods for the onset of GI cancer after drug administration, and these analyses yielded consistent results. Additional analyses were also performed by dividing subjects into groups based on cancer types and CCI scores, and these analyses produced the same results. Conclusion Our study, using nationwide retrospective cohort data, did not find evidence suggesting that ranitidine and nizatidine increase the risk of GI cancer. In fact, we observed that the incidence of GI cancer was lower in individuals who used the drugs compared to nonusers. These findings suggest a potential beneficial effect of these drugs on cancer risk, likely attributed to their ability to improve digestive function.
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Affiliation(s)
- Hyejung Kang
- Department of Health Informatics and Biostatistics, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea
| | - Chung Mo Nam
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Dong-Woo Choi
- Cancer Big Data Center, National Cancer Control Institute, National Cancer Center, Goyang, Republic of Korea
| | - Sohee Park
- Department of Health Informatics and Biostatistics, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea
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3
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Espinoza‐Gutarra MR, Rawl SM, Maupome G, O'Leary HA, Valenzuela RE, Malloy C, Golzarri‐Arroyo L, Parker E, Haunert L, Haggstrom DA. Cancer-related knowledge, beliefs, and behaviors among Hispanic/Latino residents of Indiana. Cancer Med 2023; 12:7470-7484. [PMID: 36683200 PMCID: PMC10067073 DOI: 10.1002/cam4.5466] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 09/28/2022] [Accepted: 11/11/2022] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Cancer is the leading cause of death for Hispanics in the USA. Screening and prevention reduce cancer morbidity and mortality. METHODS This study administered a cross-sectional web-based survey to self-identified Hispanic residents in the state of Indiana to assess their cancer-related knowledge, beliefs, and behaviors, as well as to identify what factors might be associated with cancer screening and prevention. Chi-square and Fisher's exact test were used to compare associations and logistic regression used to develop both univariate and multivariate regression models. RESULTS A total of 1520 surveys were completed, median age of respondents was 53, 52% identified as men, 50.9% completed the survey in Spanish, and 60.4% identified the USA as their country of birth. Most were not able to accurately identify ages to begin screening for breast, colorectal, or lung cancer, and there were significant differences in cancer knowledge by education level. US-born individuals with higher income and education more often believed they were likely to develop cancer and worry about getting cancer. Sixty eight percent of respondents were up-to-date with colorectal, 44% with breast, and 61% with cervical cancer screening. Multivariate models showed that higher education, lack of fatalism, older age, lower household income, and unmarried status were associated with cervical cancer screening adherence. CONCLUSIONS Among a Hispanic population in the state of Indiana, factors associated with cervical cancer screening adherence were similar to the general population, with the exceptions of income and marital status. Younger Hispanic individuals were more likely to be adherent with breast and colorectal cancer screening, and given the higher incidence of cancer among older individuals, these results should guide future research and targeted outreach.
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Affiliation(s)
- Manuel R. Espinoza‐Gutarra
- Division of Hematology and Oncology, Department of MedicineUniversity of Alabama at BirminghamBirminghamAlabamaUSA
| | - Susan M. Rawl
- Indiana University Melvin and Bren Simon Comprehensive Cancer CenterIndianapolisIndianaUSA
- Indiana University School of NursingIndianapolisIndianaUSA
| | - Gerardo Maupome
- Indiana University Purdue University Indianapolis, Richard M. Fairbanks School of Public HealthIndianapolisIndianaUSA
| | | | | | - Caeli Malloy
- Indiana University School of NursingIndianapolisIndianaUSA
| | | | - Erik Parker
- School of Public HealthIndiana University BloomingtonBloomingtonIndianaUSA
| | - Laura Haunert
- Indiana University School of NursingIndianapolisIndianaUSA
- Indiana University School of MedicineIndianapolisIndianaUSA
| | - David A. Haggstrom
- Center for Health Services ResearchRegenstrief InstituteIndianapolisIndianaUSA
- VA HSR&D Center for Health Information and CommunicationRichard L. Roudebush Veterans Affairs Medical CenterIndianapolisIndianaUSA
- Division of General Internal Medicine and GeriatricsIndiana University School of MedicineIndianapolisIndianaUSA
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4
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Liu H, Stiller CA, Crooks CJ, Rous B, Bythell M, Broggio J, Rankin J, Nanduri V, Lanyon P, Card TR, Ban L, Elliss‐Brookes L, Broughan JM, Paley L, Wong K, Bacon A, Bishton M, West J. Incidence, prevalence and survival in patients with Langerhans cell histiocytosis: A national registry study from England, 2013-2019. Br J Haematol 2022; 199:728-738. [PMID: 36122574 PMCID: PMC9826274 DOI: 10.1111/bjh.18459] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/15/2022] [Accepted: 08/31/2022] [Indexed: 01/11/2023]
Abstract
This analysis is the largest population-based study to date to provide contemporary and comprehensive epidemiological estimates of all third edition of the International Classification of Diseases for Oncology (ICD-O-3) coded Langerhans cell histiocytosis (LCH) from England. People of all ages were identified from the National Cancer Registration Dataset using ICD-O-3 morphologies 9751-9754 for neoplasms diagnosed in 2013-2019. A total of 658 patients were identified, of whom 324 (49%) were children aged <15 years. The age-standardised incidence rate was 4.46 (95% confidence interval [CI] 3.99-4.98) per million children and 1.06 (95% CI 0.94-1.18) per million adults aged ≥15 years. Prevalence of LCH was 9.95 (95% CI 9.14-10.81) per million persons at the end of 2019. The 1-year overall survival (OS) was 99% (95% CI 97%-100%) for children and 90% (95% CI 87%-93%) for adults. Those aged ≥60 years had poorer OS than those aged <15 years (hazard ratio [HR] 22.12, 95% CI 7.10-68.94; p < 0.001). People in deprived areas had lower OS than those in the least deprived areas (HR 5.36, 95% CI 1.16-24.87; p = 0.03). There will inevitably be other environmental factors and associations yet to be identified, and the continued standardised data collection will allow further evaluation of data over time. This will be increasingly important with developments in LCH management following the large collaborative international trials such as LCH IV.
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Affiliation(s)
- Hanhua Liu
- National Disease Registration ServiceNHS DigitalLeedsUK
| | | | - Colin J. Crooks
- NIHR Nottingham Biomedical Research CentreUniversity of NottinghamNottinghamUK
| | - Brian Rous
- National Disease Registration ServiceNHS DigitalLeedsUK
| | - Mary Bythell
- National Disease Registration ServiceNHS DigitalLeedsUK
| | - John Broggio
- National Disease Registration ServiceNHS DigitalLeedsUK
| | - Judith Rankin
- Population Health Sciences InstituteNewcastle UniversityNewcastle upon TyneUK
| | | | - Peter Lanyon
- Lifespan and Population HealthUniversity of NottinghamNottinghamUK
| | - Tim R. Card
- Lifespan and Population HealthUniversity of NottinghamNottinghamUK
| | - Lu Ban
- Nottingham Digestive Diseases CentreUniversity of NottinghamNottinghamUK
| | | | | | - Lizz Paley
- National Disease Registration ServiceNHS DigitalLeedsUK
| | - Kwok Wong
- National Disease Registration ServiceNHS DigitalLeedsUK
| | - Andrew Bacon
- National Disease Registration ServiceNHS DigitalLeedsUK
| | - Mark Bishton
- Department of HaematologyNottingham City HospitalNottinghamUK
| | - Joe West
- Lifespan and Population HealthUniversity of NottinghamNottinghamUK
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Wang M, Liu Y, Ma Y, Li Y, Sun C, Cheng Y, Cheng P, Liu G, Zhang X. Association Between Cancer Prevalence and Different Socioeconomic Strata in the US: The National Health and Nutrition Examination Survey, 1999–2018. Front Public Health 2022; 10:873805. [PMID: 35937239 PMCID: PMC9355719 DOI: 10.3389/fpubh.2022.873805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 05/02/2022] [Indexed: 11/13/2022] Open
Abstract
Background Inequality in health outcomes in relation to Americans' socioeconomic status (SES) is rising. American Cancer Society depicts that the most common cancers are diagnosed in men and women in 2021. We aim to study socioeconomic inequalities in related cancers to investigate whether the cancer prevalence differs within the family income to poverty ratio (PIR). Methods The study investigated data from adults aged 20–85 years participated in the 1999–2018 National Health and Nutrition Examination Survey (NHANES) who had complete data available on PIR and cancer or malignancy information (n = 49,720). Participants were stratified into 3 categories of PIR: high income (PIR ≥ 4), middle income (>1 and <4), or at or below the federal poverty level (≤1). Results The prevalence of prostate cancer was higher in the middle-income (3.61% [n = 464]) and high-income groups (3.36% [n = 227]) than in the low-income group (1.83% [n = 84], all p < 0.001). The prevalence of breast cancer was higher in middle-income (2.86% [n = 390]) and high-income participants (3.48% [n = 218]) than in low-income participants (2.00% [n = 117], all p < 0.001). Compared with the low-income group in men (0.48% [n = 22]), a higher prevalence of colon and rectum cancer occurs in the middle-income (0.87% [n = 112], p = 0.012) and high-income groups (0.89% [n = 58], p = 0.018). The prevalence of lung cancer in women was lower in high-income participants than middle-income participants (0.10% [n = 6] vs. 0.29% [n = 39], p = 0.014). Conclusions Increasing disparities in cancer prevalence were identified across all socioeconomic categories analyzed in this study. To ensure the sustainable development goals, it is a global health priority to understand inequalities in health and to target interventions accordingly.
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Affiliation(s)
- Mingsi Wang
- Department of Health Economics, College of Health Management of Harbin Medical University, Harbin, China
| | - Yang Liu
- School of Public Health, Harbin Medical University, Harbin, China
| | - Yi Ma
- Department of Health Economics, College of Health Management of Harbin Medical University, Harbin, China
| | - Yue Li
- Department of Health Economics, College of Health Management of Harbin Medical University, Harbin, China
| | - Chengyao Sun
- Department of Health Economics, College of Health Management of Harbin Medical University, Harbin, China
| | - Yi Cheng
- Department of Health Economics, College of Health Management of Harbin Medical University, Harbin, China
| | - Pengxin Cheng
- Department of Health Economics, College of Health Management of Harbin Medical University, Harbin, China
| | - Guoxiang Liu
- Department of Health Economics, College of Health Management of Harbin Medical University, Harbin, China
- *Correspondence: Guoxiang Liu
| | - Xin Zhang
- Department of Health Economics, College of Health Management of Harbin Medical University, Harbin, China
- Xin Zhang
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6
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French DP, Woof VG, Ruane H, Evans DG, Ulph F, Donnelly LS. The feasibility of implementing risk stratification into a national breast cancer screening programme: a focus group study investigating the perspectives of healthcare personnel responsible for delivery. BMC Womens Health 2022; 22:142. [PMID: 35501791 PMCID: PMC9063090 DOI: 10.1186/s12905-022-01730-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 04/01/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Providing women with personalized estimates of their risk of developing breast cancer, as part of routine breast cancer screening programmes, allows women at higher risk to be offered more frequent screening or drugs to reduce risk. For this to be feasible, the concept and practicalities have to be acceptable to the healthcare professionals who would put it in to practice. The present research investigated the acceptability to healthcare professionals who were responsible for the implementation of this new approach to screening in the ongoing BC-Predict study. METHODS Four focus groups were conducted with 29 healthcare professionals from a variety of professional backgrounds working within three breast screening services in north-west England. An inductive-manifest thematic analysis was conducted. RESULTS Overall, healthcare professionals viewed the implementation of personalised breast cancer risk estimation as a positive step, but discussion focused on concerns. Three major themes are presented. (1) Service constraints highlights the limited capacity within current breast services and concerns about the impact of additional workload. (2) Risk communication concerns the optimal way to convey risk to women within resource constraints. (3) Accentuating inequity discusses how risk stratification could decrease screening uptake for underserved groups. CONCLUSIONS Staff who implemented risk stratification considered it a positive addition to routine screening. They considered it essential to consider improving capacity and demands on healthcare professional time. They highlighted the need for skilled communication of risks and new pathways of care to ensure that stratification could be implemented in financially and time constrained settings without impacting negatively on women.
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Affiliation(s)
- David P French
- Division of Psychology & Mental Health, Manchester Centre for Health Psychology, School of Health Sciences, University of Manchester, Manchester, UK.
| | - Victoria G Woof
- Division of Psychology & Mental Health, Manchester Centre for Health Psychology, School of Health Sciences, University of Manchester, Manchester, UK
| | - Helen Ruane
- Nightingale & Prevent Breast Cancer Research Unit, Manchester University NHS Foundation Trust, Manchester, UK
| | - D Gareth Evans
- Nightingale & Prevent Breast Cancer Research Unit, Manchester University NHS Foundation Trust, Manchester, UK.,Division of Evolution and Genomic Science, Department of Genomic Medicine, University of Manchester, Manchester, UK
| | - Fiona Ulph
- Division of Psychology & Mental Health, Manchester Centre for Health Psychology, School of Health Sciences, University of Manchester, Manchester, UK
| | - Louise S Donnelly
- Nightingale & Prevent Breast Cancer Research Unit, Manchester University NHS Foundation Trust, Manchester, UK.,Division of Population Health, Health Services Research & Primary Care, School of Health Sciences, University of Manchester, Manchester, UK
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7
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Ferreira MDC, Sarti FM, Barros MBDA. Social inequalities in the incidence, mortality, and survival of neoplasms in women from a municipality in Southeastern Brazil. CAD SAUDE PUBLICA 2022; 38:e00107521. [DOI: 10.1590/0102-311x00107521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 08/28/2021] [Indexed: 12/24/2022] Open
Abstract
This study aims to analyze inequalities in the incidence, mortality, and survival of the main types of cancer in women according to the Social Vulnerability Index (SVI). The study was conducted in Campinas, São Paulo State, Brazil, from 2010 to 2014, and used data from the Population-based Cancer Registry and the Mortality Information System. Incidence and mortality rates standardized by age and 5-year survival estimates were calculated according to the social vulnerability strata (SVS), based on the São Paulo Social Vulnerability Index. Three SVS were delimited, with SVS1 being the lowest level of vulnerability and SVS3 being the highest. Rate ratios and the concentration index were calculated. The significance level was 5%. Women in SVS1 had a higher risk of breast cancer (0.46; 95%CI: 0.41; 0.51), colorectal cancer (0.56; 95%CI: 0.47; 0.68), and thyroid cancer (0.32; 95%CI: 0.26; 0.40), whereas women from SVS3 had a higher risk of cervical cancer (2.32; 95%CI: 1.63; 3.29). Women from SVS1 had higher mortality rates for breast (0.69; 95%CI: 0.53; 0.88) and colorectal cancer (0.69; 95%CI: 0.59; 0.80) and women from SVS3 had higher rates for cervical (2.35; 95%CI: 1.57; 3.52) and stomach cancer (1.43; 95%CI: 1.06; 1.91). Women of highest social vulnerability had lower survival rates for all types of cancer. The observed inequalities differed according to the location of the cancer and the analyzed indicator. Inequalities between incidence, mortality, and survival tend to revert and the latter is always unfavorable to the segment of highest vulnerability, indicating the existence of inequality in access to early diagnosis and timely treatment.
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8
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Barber LE, Zirpoli GR, Cozier YC, Rosenberg L, Petrick JL, Bertrand KA, Palmer JR. Neighborhood disadvantage and individual-level life stressors in relation to breast cancer incidence in US Black women. Breast Cancer Res 2021; 23:108. [PMID: 34809694 PMCID: PMC8609879 DOI: 10.1186/s13058-021-01483-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 11/01/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Research on psychosocial stress and risk of breast cancer has produced conflicting results. Few studies have assessed this relation by breast cancer subtype or specifically among Black women, who experience unique chronic stressors. METHODS We used prospective data from the Black Women's Health Study, an ongoing cohort study of 59,000 US Black women, to assess neighborhood- and individual-level psychosocial factors in relation to risk of breast cancer. We used factor analysis to derive two neighborhood score variables after linking participant addresses to US Census data (2000 and 2010) on education, employment, income and poverty, female-headed households, and Black race for all households in each residential block group. We used Cox proportional hazards regression to estimate hazard ratios (HR) and 95% confidence intervals (CI) adjusted for established breast cancer risk factors. RESULTS During follow-up from 1995 to 2017, there were 2167 incident invasive breast cancer cases (1259 estrogen receptor positive (ER +); 687 ER negative (ER-)). For ER- breast cancer, HRs were 1.26 (95% CI 1.00-1.58) for women living in the highest quartile of neighborhood disadvantage relative to women in the lowest quartile, and 1.24 (95% CI 0.98-1.57) for lowest versus highest quartile of neighborhood socioeconomic status (SES). For ER+ breast cancer, living in the lowest quartile of neighborhood SES was associated with a reduced risk of ER+ breast cancer (HR = 0.83, 95% CI 0.70-0.98). With respect to individual-level factors, childhood sexual abuse (sexual assault ≥ 4 times vs. no abuse: HR = 1.35, 95% CI 1.01-1.79) and marital status (married/living together vs. single: HR = 1.29, 95% CI 1.08-1.53) were associated with higher risk of ER+, but not ER- breast cancer. CONCLUSION Neighborhood disadvantage and lower neighborhood SES were associated with an approximately 25% increased risk of ER- breast cancer in this large cohort of Black women, even after control for multiple behaviors and lifestyle factors. Further research is need to understand the underlying reasons for these associations. Possible contributing factors are biologic responses to the chronic stress/distress experienced by individuals who reside in neighborhoods characterized by high levels of noise, crime and unemployment or the direct effects of environmental toxins.
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Affiliation(s)
- Lauren E Barber
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA.,Slone Epidemiology Center at Boston University, 72 East Concord Street, L-7, Boston, MA, 02118, USA
| | - Gary R Zirpoli
- Slone Epidemiology Center at Boston University, 72 East Concord Street, L-7, Boston, MA, 02118, USA
| | - Yvette C Cozier
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA.,Slone Epidemiology Center at Boston University, 72 East Concord Street, L-7, Boston, MA, 02118, USA
| | - Lynn Rosenberg
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA.,Slone Epidemiology Center at Boston University, 72 East Concord Street, L-7, Boston, MA, 02118, USA
| | - Jessica L Petrick
- Slone Epidemiology Center at Boston University, 72 East Concord Street, L-7, Boston, MA, 02118, USA.,Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Kimberly A Bertrand
- Slone Epidemiology Center at Boston University, 72 East Concord Street, L-7, Boston, MA, 02118, USA.,Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Julie R Palmer
- Slone Epidemiology Center at Boston University, 72 East Concord Street, L-7, Boston, MA, 02118, USA. .,Department of Medicine, Boston University School of Medicine, Boston, MA, USA.
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9
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Mathew A, George PS, Kunnambath R, Mathew BS, Kumar A, Syampramod R, Booth CM. Educational Status, Cancer Stage, and Survival in South India: A Population-Based Study. JCO Glob Oncol 2021; 6:1704-1711. [PMID: 33156718 PMCID: PMC7713566 DOI: 10.1200/go.20.00259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
PURPOSE Lower socioeconomic status is associated with more advanced cancer at the time of cancer diagnosis. It is unknown whether this leads to inferior survival in low- and middle-income countries. Here, we explore the association between educational level and survival in South India. METHODS The Trivandrum Cancer Registry (3.3 million population) was used to identify all cases of breast and cervical cancer (women) and oral cavity (OC) and lung cancer (men) diagnosed during 2012-2014. Educational level was classified as illiterate/primary school, middle school, and secondary school and above. Survival was measured from date of diagnosis using the Kaplan-Meier method. Cox proportional hazards regression modeling was used to describe the associations among education, stage of cancer at diagnosis, and survival. RESULTS The study population included 3,640 patients with breast (n = 1,727), cervical (n = 425), OC (n = 702), and lung (n = 786) cancer. Educational level was 27%, 23%, and 32% for illiterate/primary, middle, and secondary school and above, respectively. The 5-year survival rate for breast cancer was 59%, 68%, and 73% (P = .001); for cervical cancer, 51%, 52%, and 60% (P = .146); and for OC cancer, 42%, 35%, and 48% (P = .012) for illiterate/primary, middle school, and secondary school and above, respectively. The survival gradient across social groups was substantially attenuated when stage was added to the multivariable model. There was no observed difference in survival across educational groups for lung cancer (2%, 4%, and 3%; P = .224). CONCLUSION Data from this population-based study in South India demonstrate that patients from a lower educational background have inferior survival and that this is at least partially explained by having more advanced disease at the time of diagnosis. Public health efforts are needed to facilitate timely diagnosis and reduce disparities in cancer outcomes.
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Affiliation(s)
- Aleyamma Mathew
- Department of Cancer Epidemiology, Queen's University, Kingston, Ontario, Canada
| | - Preethi Sara George
- Department of Cancer Epidemiology, Queen's University, Kingston, Ontario, Canada
| | - Ramadas Kunnambath
- Department of Radiation Oncology, Queen's University, Kingston, Ontario, Canada
| | - Beela Sarah Mathew
- Department of Radiation Oncology, Queen's University, Kingston, Ontario, Canada
| | - Aswin Kumar
- Department of Radiation Oncology, Queen's University, Kingston, Ontario, Canada
| | - Roshni Syampramod
- Department of Radiation Oncology, Queen's University, Kingston, Ontario, Canada
| | - Christopher M Booth
- Department, of Oncology, Queen's University, Kingston, Ontario, Canada.,Department of Public Health Sciences, Queen's University, Kingston, Ontario, Canada
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10
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Shah R, Chan KKW. The impact of socioeconomic status on stage at presentation, receipt of diagnostic imaging, receipt of treatment and overall survival in colorectal cancer patients. Int J Cancer 2021; 149:1031-1043. [PMID: 33950515 DOI: 10.1002/ijc.33622] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 04/11/2021] [Accepted: 04/26/2021] [Indexed: 11/12/2022]
Abstract
Socioeconomic factors influence patterns of care in colorectal cancer. Our study investigates the impact of socioeconomic status (SES) on stage at presentation, receipt of diagnostic imaging, receipt of treatment and overall survival (OS) in a universal healthcare system. The Ontario Cancer Registry (OCR) was accessed to identify a cohort of patients diagnosed with colorectal adenocarcinoma from 2007 to 2016 in Ontario, Canada. SES was measured using median neighborhood income divided into quintiles (Q1-Q5; Q1 = lowest income). Logistic regression analyses were used to evaluate stage, imaging and treatment. Cox proportional hazards models were used to evaluate OS. All endpoints were adjusted for demographics and comorbidities with OS models also adjusting for stage, imaging and treatment. In total, 39 802 colon and 13 164 rectal patients were identified. Lower SES was associated with advanced stage at presentation in both cohorts (Q1 vs Q5: Colon odds ratio [OR] = 1.08, P = .046, rectal OR = 1.25, P < .0001). Lower SES colon patients were less likely to receive adjuvant oxaliplatin (Q1 vs Q5: OR = 0.78, P < .001) and all palliative chemotherapies studied including oxaliplatin (Q1 vs Q5: OR = 0.60, P < 0.0001), irinotecan (Q1 vs Q5: OR = 0.65, P < .0001), bevacizumab (Q1 vs Q5: OR = 0.70, P < .001), cetuximab (Q1 vs Q5: OR = 0.40, P = .0053) and panitumumab (Q1 vs Q5: OR = 0.54, P = .0036). In rectal patients, lower SES was associated with decreased receipt of rectal cancer resection for stages I-III (Q1 vs Q5: OR = 0.78, P < .001), adjuvant oxaliplatin (Q1 vs Q5: OR = 0.72, P = .0020) and palliative chemotherapies including oxaliplatin (Q1 vs Q5: OR = 0.59, P < .001), irinotecan (Q1 vs Q5: OR = 0.53, P < .001) and bevacizumab (Q1 vs Q5: OR = 0.71, P = .046). All survival models identified poorer OS for lower SES patients (total colorectal; Q1 vs Q5: Hazard ratio [HR] = 1.25, P < .0001). These findings suggest disparities persist even within universal healthcare.
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Affiliation(s)
- Rajan Shah
- Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Kelvin K W Chan
- Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.,Canadian Centre for Applied Research in Cancer Control, Toronto, Ontario, Canada
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11
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Schröder S, Beller J, Golpon H, Geyer S. Are there social gradients in the occurrence of lung cancer and in the survival of lung cancer patients? Findings from an observational study using German claims data of Lower Saxony. BMJ Open 2020; 10:e036506. [PMID: 32878756 PMCID: PMC7470500 DOI: 10.1136/bmjopen-2019-036506] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES Only a few studies on health inequalities in terms of lung cancer are available. We examined whether social inequalities are present for the occurrence of lung cancer. Confining the analyses to patients, it was also examined whether survival over the observation period and over a standardised period of 18 months differed by occupational position and income. METHODS Our findings are based on claims data from a German statutory health insurance covering 2005-2016. The database comprised N=3 163 211 women (50.7%) and men (49.3%) aged 18 years and older. Diagnoses (International Statistical Classification of Diseases and Related Health Problems 10th Revision: C34.0 to C34.9) were hospital-based, and income and occupational position were used as indicators of socioeconomic position. Analyses on social gradients were performed for employed and retired insured, but only for employed insured information on occupation and on income were available, for retired women and men only income was available. Analyses were performed by means of proportional hazard regression. RESULTS In employed women, social gradients for the occurrence emerged for occupational position, but not for income. In men, social differences were found for both indicators. For retired insured, income gradients were found in men. Looking at overall survival, neither in women nor in men social gradients emerged. CONCLUSIONS The reported social inequalities in the occurrence of lung cancer are pointing towards social differences in smoking behaviour, exposition to hazardous occupation-related substances and differences in preventive strategies. The absence of social inequalities in survival after lung cancer suggests equality in medical treatment of the disease.
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Affiliation(s)
| | - Johannes Beller
- Medical Sociology, Hannover Medical School, Hannover, Germany
| | - Heiko Golpon
- Pneumology, Hannover Medical School, Hannover, Germany
| | - Siegfried Geyer
- Medical Sociology, Hannover Medical School, Hannover, Germany
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12
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Morriscey C, Hajizadeh M. Income and education inequalities in cervical cancer incidence in Canada, 1992-2010. J Public Health (Oxf) 2020; 43:814-823. [PMID: 32785597 DOI: 10.1093/pubmed/fdaa128] [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: 12/13/2019] [Revised: 06/03/2020] [Accepted: 07/09/2020] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND There is evidence of socioeconomic inequalities in cancer incidence in Canada and other countries globally, yet there is no study investigating socioeconomic inequalities in national cervical cancer incidence in Canada. Thus, the current study investigated income and education inequalities in the incidence of cervical cancer in Canada from 1992 to 2010. METHODS Data were derived from a linked dataset that combined cervical cancer incidence from the Canadian Cancer Registry and demographic and socioeconomic information from the Canadian Census of Population and the National Household Survey. The Concentration index approach was used to measure income and education inequalities in the incidence of cervical cancer over time. RESULTS National incidence of cervical cancer decreased significantly from 1992 to 2010. The age-standardized C was negative for the majority of years for both income and education inequalities, but the preponderance were not significant. Trend analyses of socioeconomic inequalities suggested an increasing concentration of cervical cancer incidence among less-educated females over the study period. CONCLUSIONS Over almost two decades, there were no pervasive socioeconomic inequalities in the incidence of cervical cancer in Canada. As such, policies aimed at reducing the incidence of cervical cancer should focus on the general population, irrespective of socioeconomic status.
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Affiliation(s)
- Carol Morriscey
- Faculty of Medicine, Dalhousie University, Halifax, B3H 4R2, Canada
| | - Mohammad Hajizadeh
- School of Health Administration, Dalhousie University, Halifax, B3H 4R2, Canada
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13
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Socioeconomic inequalities in pancreatic cancer incidence in Canada: evidence from Cancer Registry data. J Public Health (Oxf) 2020. [DOI: 10.1007/s10389-020-01360-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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14
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Mathew A, George PS, Ramadas K, Mathew BS, Kumar A, Roshni S, Jayakumar KNL, Booth CM. Sociodemographic Factors and Stage of Cancer at Diagnosis: A Population-Based Study in South India. J Glob Oncol 2020; 5:1-10. [PMID: 31322993 PMCID: PMC6690651 DOI: 10.1200/jgo.18.00160] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
PURPOSE Lower socioeconomic status is associated with inferior cancer survival in high-income countries, but whether this applies to low- and middle-income countries is not well described. Here, we use a population-based cancer registry to explore the association between educational level and stage of cancer at diagnosis in South India. METHODS We used the Trivandrum District population-based cancer registry to identify all cases of breast and cervical cancer (women) and oral cavity (OC) and lung cancer (men) who were diagnosed from 2012 to 2014. Educational status—classified as illiterate/primary school, middle school, or secondary school or higher—was the primary exposure of interest. Primary outcome was the proportion of patients with advanced stage disease at diagnosis defined as stage III and IV (breast, cervix, or OC) or regional/metastatic (lung). RESULTS The study population included 4,547 patients with breast (n = 2,283), cervix (n = 481), OC (n = 797), and lung (n = 986) cancer. Educational status was 22%, 19%, and 26% for illiterate/primary, middle, and secondary school or higher, respectively. Educational status was missing for 33% of patients. The proportion of all patients with advanced stage disease was 37% (breast), 39% (cervix), 67% (OC), and 88% (lung). Patients with illiterate/primary school educational status were considerably more likely to have advanced breast cancer (50% v 39% v 36%; P < .001), cervix cancer (46% v 43% v 24%; P = .002), and OC cancer (77% v 76% v 59%; P < .001) compared with patients with higher educational levels. The proportion of patients with advanced lung cancer did not vary across educational levels (89% v 84% v 88%; P = .350). CONCLUSION A substantial proportion of patients in South India have advanced cancer at the time of diagnosis. This is particularly true among those with the lowest levels of education. Future health awareness and preventive interventions must target less-educated communities to reduce delays in seeking medical care for cancer.
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Simkin J, Erickson AC, Otterstatter MC, Dummer TJB, Ogilvie G. Current State of Geospatial Methodologic Approaches in Canadian Population Oncology Research. Cancer Epidemiol Biomarkers Prev 2020; 29:1294-1303. [PMID: 32299848 DOI: 10.1158/1055-9965.epi-20-0092] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/25/2020] [Accepted: 04/10/2020] [Indexed: 11/16/2022] Open
Abstract
Geospatial analyses are increasingly used in population oncology. We provide a first review of geospatial analysis in Canadian population oncology research, compare to international peers, and identify future directions. Geospatial-focused peer-reviewed publications from 1992-2020 were compiled using PubMed, MEDLINE, Web of Science, and Google Scholar. Abstracts were screened for data derived from a Canadian cancer registry and use of geographic information systems. Studies were classified by geospatial methodology, geospatial unit, location, cancer site, and study year. Common limitations were documented from article discussion sections. Our search identified 71 publications using data from all provincial and national cancer registries. Thirty-nine percent (N = 28) were published in the most recent 5-year period (2016-2020). Geospatial methodologies included exposure assessment (32.4%), identifying spatial associations (21.1%), proximity analysis (16.9%), cluster detection (15.5%), and descriptive mapping (14.1%). Common limitations included confounding, ecologic fallacy, not accounting for residential mobility, and small case/population sizes. Geospatial analyses are increasingly used in Canadian population oncology; however, efforts are concentrated among a few provinces and common cancer sites, and data are over a decade old. Limitations were similar to those documented internationally, and more work is needed to address them. Organized efforts are needed to identify common challenges, develop leading practices, and identify shared priorities.
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Affiliation(s)
- Jonathan Simkin
- School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada. .,BC Cancer, Vancouver, British Columbia, Canada.,Women's Health Research Institute, Vancouver, British Columbia, Canada
| | - Anders C Erickson
- School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada.,Office of the Provincial Health Officer, Government of British Columbia, Victoria, British Columbia, Canada
| | - Michael C Otterstatter
- School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada.,BC Centre for Disease Control, Vancouver, British Columbia, Canada
| | - Trevor J B Dummer
- School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada.,BC Cancer, Vancouver, British Columbia, Canada
| | - Gina Ogilvie
- School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada.,BC Cancer, Vancouver, British Columbia, Canada.,Women's Health Research Institute, Vancouver, British Columbia, Canada.,BC Centre for Disease Control, Vancouver, British Columbia, Canada
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16
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Pang Y, Kartsonaki C, Guo Y, Chen Y, Yang L, Bian Z, Bragg F, Millwood IY, Lv J, Yu C, Chen J, Li L, Holmes MV, Chen Z. Socioeconomic Status in Relation to Risks of Major Gastrointestinal Cancers in Chinese Adults: A Prospective Study of 0.5 Million People. Cancer Epidemiol Biomarkers Prev 2020; 29:823-831. [PMID: 31988070 DOI: 10.1158/1055-9965.epi-19-0585] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/22/2019] [Accepted: 01/14/2020] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Low socioeconomic status (SES) is associated with higher risk of certain gastrointestinal (e.g., colorectal, pancreatic, and liver) cancers in Western populations. Evidence is very limited in China, where correlates and determinants of SES differ from those in the West. METHODS The prospective China Kadoorie Biobank recruited 512,715 adults (59% women, mean age 51 years) from 10 (5 urban, 5 rural) regions. During 10 years of follow-up, 27,940 incident cancers (including 3,061 colorectal, 805 pancreatic, and 2,904 liver) were recorded among 510,131 participants without prior cancer at baseline. Cox regression was used to estimate adjusted HRs for specific cancers associated with area-level (e.g., per capita gross domestic product, disposable income) and individual-level (e.g., education, household income) SES. RESULTS Area-level SES and household income showed positive associations with incident colorectal and pancreatic cancers and inverse associations with liver cancer (P trend < 0.05). Education showed no association with colorectal cancer but inverse associations with pancreatic and liver cancers, with adjusted HRs comparing university to no formal schooling being 1.05 [95% confidence interval (CI), 0.85-1.29], 0.49 (95% CI, 0.28-0.85), and 0.61 (95% CI, 0.47-0.81), respectively. Potential risk factors (e.g., smoking, alcohol) partly explained the inverse associations of education with pancreatic and liver cancers (17.6% and 60.4%), respectively. CONCLUSIONS Among Chinese adults, the associations of SES with gastrointestinal cancers differed by cancer type and SES indicator. Potential risk factors partially explained the inverse associations of education with pancreatic and liver cancers. IMPACT The different associations between SES with gastrointestinal cancers may inform cancer prevention strategies.
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Affiliation(s)
- Yuanjie Pang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China.,Clinical Trial Service Unit & Epidemiological Studies Unit (CTSU), Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Christiana Kartsonaki
- Clinical Trial Service Unit & Epidemiological Studies Unit (CTSU), Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom. .,Medical Research Council Population Health Research Unit (MRC PHRU), Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Yu Guo
- Chinese Academy of Medical Sciences, Beijing, China
| | - Yiping Chen
- Clinical Trial Service Unit & Epidemiological Studies Unit (CTSU), Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.,Medical Research Council Population Health Research Unit (MRC PHRU), Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Ling Yang
- Clinical Trial Service Unit & Epidemiological Studies Unit (CTSU), Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.,Medical Research Council Population Health Research Unit (MRC PHRU), Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Zheng Bian
- Chinese Academy of Medical Sciences, Beijing, China
| | - Fiona Bragg
- Clinical Trial Service Unit & Epidemiological Studies Unit (CTSU), Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Iona Y Millwood
- Clinical Trial Service Unit & Epidemiological Studies Unit (CTSU), Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.,Medical Research Council Population Health Research Unit (MRC PHRU), Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Jun Lv
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Canqing Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Junshi Chen
- National Center for Food Safety Risk Assessment, Beijing, China
| | - Liming Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Michael V Holmes
- Clinical Trial Service Unit & Epidemiological Studies Unit (CTSU), Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.,Medical Research Council Population Health Research Unit (MRC PHRU), Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.,National Institute for Health Research Oxford Biomedical Research Centre, Oxford University Hospital, Oxford, United Kingdom
| | - Zhengming Chen
- Clinical Trial Service Unit & Epidemiological Studies Unit (CTSU), Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.,Medical Research Council Population Health Research Unit (MRC PHRU), Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
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17
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Hur HW, Ryu SY, Park J, Choi SW. Relationship between Socioeconomic Status and Prevalent Prostate Cancer in the South Korea. Asian Pac J Cancer Prev 2019; 20:3137-3144. [PMID: 31653165 PMCID: PMC6982686 DOI: 10.31557/apjcp.2019.20.10.3137] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Prostate cancer prevalence recently has increased among male adults in South Korea. But, few study has evaluated the reason. Therefore, we investigated the relationship between socioeconomic status and prevalent prostate cancer. METHODS This study enrolled 16,215 males aged 40 years and over who took part in the Korean National Health and Nutrition Examination Survey 2007-2016. In addition, we obtained the 2000-2016 age-standardized incidence rate and age-standardized mortality rate of prostate cancer from the Korean Statistical Information Service. RESULTS After adjusting for other covariates, prevalent prostate cancer was significantly associated with monthly household income (OR 3.71, 95% confidence interval [CI] 1.48-9.30, for highest vs. lowest) and significantly associated with education level (OR 3.66, 95% CI 1.54-8.70, for ≥ 13 vs. ≤ 6). In the analysis of the age-standardized incidence rate and the age-standardized mortality rate, the age-standardized incidence rate has soared from 2000 to 2011 and then decreased gradually, but the age-standardized mortality rate did not change. CONCLUSION In our results, prevalent prostate cancer increased significantly with socioeconomic status and the increase in prevalent prostate cancer may be attributable to earlier detection rather than to a real increase in prevalence.
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Affiliation(s)
- Hee-Won Hur
- Department of Public Health, Graduate School of Chosun University, Gwangju, Korea
| | - So-Yeon Ryu
- Department of Preventive Medicine, Chosun University Medical School, Gwangju, Korea
| | - Jong Park
- Department of Preventive Medicine, Chosun University Medical School, Gwangju, Korea
| | - Seong-Woo Choi
- Department of Preventive Medicine, Chosun University Medical School, Gwangju, Korea
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18
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Earnest A, Evans SM, Sampurno F, Millar J. Forecasting annual incidence and mortality rate for prostate cancer in Australia until 2022 using autoregressive integrated moving average (ARIMA) models. BMJ Open 2019; 9:e031331. [PMID: 31431447 PMCID: PMC6707661 DOI: 10.1136/bmjopen-2019-031331] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVES Prostate cancer is the second most common cause of cancer-related death in males after lung cancer, imposing a significant burden on the healthcare system in Australia. We propose the use of autoregressive integrated moving average (ARIMA) models in conjunction with population forecasts to provide for robust annual projections of prostate cancer. DESIGN Data on the incidence and mortality from prostate cancer was obtained from the Australian Institute of Health and Welfare. We formulated several ARIMA models with different autocorrelation terms and chose one which provided for an accurate fit of the data based on the mean absolute percentage error (MAPE). We also assessed the model for external validity. A similar process was used to model age-standardised incidence and mortality rate for prostate cancer in Australia during the same time period. RESULTS The annual number of prostate cancer cases diagnosed in Australia increased from 3606 in 1982 to 20 065 in 2012. There were two peaks observed around 1994 and 2009. Among the various models evaluated, we found that the model with an autoregressive term of 1 (coefficient=0.45, p=0.028) as well as differencing the series provided the best fit, with a MAPE of 5.2%. External validation showed a good MAPE of 5.8% as well. We project prostate cancer incident cases in 2022 to rise to 25 283 cases (95% CI: 23 233 to 27 333). CONCLUSION Our study has accurately characterised the trend of prostate cancer incidence and mortality in Australia, and this information will prove useful for resource planning and manpower allocation.
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Affiliation(s)
- Arul Earnest
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Sue M Evans
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Fanny Sampurno
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
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Abstract
The use of data from the real world to address clinical and policy-relevant questions that cannot be answered using data from clinical trials is garnering increased interest. Indeed, data from cancer registries and linked treatment records can provide unique insights into patients, treatments and outcomes in routine oncology practice. In this Review, we explore the quality of real-world data (RWD), provide a framework for the use of RWD and draw attention to the methodological pitfalls inherent to using RWD in studies of comparative effectiveness. Randomized controlled trials and RWD remain complementary forms of medical evidence; studies using RWD should not be used as substitutes for clinical trials. The comparison of outcomes between nonrandomized groups of patients who have received different treatments in routine practice remains problematic. Accordingly, comparative effectiveness studies need to be designed and interpreted very carefully. With due diligence, RWD can be used to identify and close gaps in health care, offering the potential for short-term improvement in health-care systems by enabling them to achieve the achievable.
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20
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Densmore R, Hajizadeh M, Hu M. Trends in socio-economic inequalities in bladder cancer incidence in Canada: 1992-2010. Canadian Journal of Public Health 2019; 110:722-731. [PMID: 31209789 DOI: 10.17269/s41997-019-00227-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Accepted: 05/15/2019] [Indexed: 01/03/2023]
Abstract
OBJECTIVES Growing literature demonstrates widening socio-economic gradients in cancer incidence in different countries. However, few studies have measured the magnitude of socio-economic inequalities in the incidence of different types of cancers. This study aimed to evaluate socio-economic inequalities in bladder cancer incidence in Canada over time. METHODS Using data obtained from the Canadian Cancer Registry (CCR), the Canadian Census of Population (CCP), and the National Household Survey (NHS), we examined socio-economic inequalities of bladder cancer incidence among men and women in Canada from 1992 to 2010. Income- and education-related inequalities were measured using the concentration index (C) approach. We also analyzed the trends of income- and education-related inequalities over the study period. RESULTS There is an increasing trend in bladder cancer incidence in Canada. The estimated C suggested a higher incidence of bladder cancer among low socio-economic-status individuals. The results revealed that income-related inequality in bladder cancer incidence increased among the female population. Education-related inequality in the incidence of bladder cancer widened for both males and females in Canada. CONCLUSION The concentration of bladder cancer in Canada is growing among the socio-economically disadvantaged population. Further studies are required to help elucidate causal relationships between socio-economic status and bladder cancer incidence in Canada.
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Affiliation(s)
- Ryan Densmore
- Faculty of Medicine, Dalhousie University, Halifax, NS, Canada
| | - Mohammad Hajizadeh
- School of Health Administration, Faculty of Health, Dalhousie University, Sir Charles Tupper Medical Building, 5850 College Street, 2nd Floor, Halifax, NS, B3H 4R2, Canada.
| | - Min Hu
- School of Health Administration, Faculty of Health, Dalhousie University, Sir Charles Tupper Medical Building, 5850 College Street, 2nd Floor, Halifax, NS, B3H 4R2, Canada
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Liu JM, Yi CC, Lin CY, Chang H, Hsu RJ, Chuang HC, Hsu WL. The association between epididymo-orchitis and prostate cancer: A nationwide population-based cohort study. Medicine (Baltimore) 2019; 98:e15363. [PMID: 31124926 PMCID: PMC6571416 DOI: 10.1097/md.0000000000015363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
To determine whether epididymo-orchitis, a common infectious disease among men, is associated with subsequent prostate cancer (PCa) via a nationwide cohort study.This nationwide population-based study of patients treated from 2001 to 2013 included a total of 4991 patients with epididymo-orchitis as the study group and 19,922 matched patients without epididymo-orchitis as a control group. We tracked the patients in both groups for a 5-year period to identify any new cases of PCa. Cox proportional hazards regressions were performed to calculate the hazard ratio (HR) of PCa during this 5-year follow-up period.Of the 24,913 patients in the study, 235 (0.9%) were newly diagnosed with PCa during the 5-year follow-up period; 77 (1.5%) of those were from the epididymo-orchitis group and 158 (0.8%) were from the control group. Compared to the patients without epididymo-orchitis, the adjusted HR for PCa for the patients with epididymo-orchitis was 1.56 (95% confidence interval [CI]: 1.18-2.06) during the 5-year follow-up period. Ages of more than 70 years, higher incomes, hypertension, and hyperlipidemia were more strongly associated withPCa in the study group than in the control group.The results were associated with a 56% increased risk for PCa among patients with epididymo-orchitis. Epididymo-orchitis may play an etiological role in the development of PCa in Asian populations. Further studies are warranted, however, to investigate the relationship between epididymo-orchitis and PCa.
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Affiliation(s)
- Jui-Ming Liu
- Division of Urology, Department of Surgery, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan
- Department of Medicine, National Yang-Ming University
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei
| | | | - Chien-Yu Lin
- Department of Pediatrics, Hsinchu MacKay Memorial Hospital, Hsinchu
| | - Hung Chang
- Department of Physiology and Biophysics, National Defense Medical Center
| | - Ren-Jun Hsu
- Department of Pathology and Graduate Institute of Pathology and Parasitology, The Tri-Service General Hospital, National Defense Medical Center, Taipei
- Cancer Medicine Center of Hualien Tzu Chi Hospital, Tzu Chi University
| | - Heng-Chang Chuang
- Division of Urology, Department of Surgery, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan
| | - Wen-Lin Hsu
- Department of Radiation Oncology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
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Madathil S, Blaser C, Nicolau B, Richard H, Parent MÉ. Disadvantageous Socioeconomic Position at Specific Life Periods May Contribute to Prostate Cancer Risk and Aggressiveness. Front Oncol 2018; 8:515. [PMID: 30498692 PMCID: PMC6249302 DOI: 10.3389/fonc.2018.00515] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 10/22/2018] [Indexed: 01/09/2023] Open
Abstract
Background: Previous studies on socioeconomic position (SEP) and risk of prostate cancer (PCa) have produced contradictory results. Most measured SEP only once during the individuals' life span. The aim of the study was to identify life course models that describe best the relationship between SEP measured during childhood/adolescence, early- and late-adulthood, and risk of PCa overall as well as according to tumor aggressiveness at diagnosis. Methods: We used data from a population-based case-control study of PCa conducted in the predominantly French-speaking population in Montreal, Canada. Cases (n = 1,930) with new, histologically-confirmed PCa were ascertained across hospitals deserving the French-speaking population in 2005-2009. Controls (n = 1,991), selected from Quebec's list of French-speaking electors, were frequency-matched to cases (±5 years). In-person interviews collected information on socio-demographic and lifestyle characteristics, and a complete occupational history. Measures of SEP during childhood/adolescence included parents' ownership of a car and father's longest occupation, while the subject's first and longest occupations were used to indicate early- and late-adulthood SEP, respectively. We used the Bayesian relevant life course exposure model to investigate the relationship between lifelong SEP and PCa risk. Results: Cumulative exposure to disadvantageous SEP was associated with about a 50% increase in odds of developing PCa. Late-adulthood SEP was identified as a sensitive period for aggressive PCa. Childhood/adolescence SEP based on parents' ownership of a car was associated with non-aggressive PCa. Associations were independent from PCa screening. Conclusion: Disadvantageous SEP over the life course was associated with higher PCa incidence, with consistent evidence of sensitive time periods for cancer aggressiveness. The mechanisms through which disadvantageous SEP relates to PCa risk need to be further elucidated.
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Affiliation(s)
- Sreenath Madathil
- Epidemiology and Biostatistics Unit, INRS-Institut Armand-Frappier, Université du Québec, Laval, QC, Canada
- Division of Oral Health and Society, Faculty of Dentistry, McGill University, Montreal, QC, Canada
| | - Christine Blaser
- Epidemiology and Biostatistics Unit, INRS-Institut Armand-Frappier, Université du Québec, Laval, QC, Canada
- Division of Oral Health and Society, Faculty of Dentistry, McGill University, Montreal, QC, Canada
| | - Belinda Nicolau
- Division of Oral Health and Society, Faculty of Dentistry, McGill University, Montreal, QC, Canada
| | - Hugues Richard
- Epidemiology and Biostatistics Unit, INRS-Institut Armand-Frappier, Université du Québec, Laval, QC, Canada
| | - Marie-Élise Parent
- Epidemiology and Biostatistics Unit, INRS-Institut Armand-Frappier, Université du Québec, Laval, QC, Canada
- School of Public Health, Université de Montréal, Montreal, QC, Canada
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Hallet J, Coburn NG, Singh S, Beyfuss K, Koujanian S, Liu N, Law CHL. Access to care and outcomes for neuroendocrine tumours: does socioeconomic status matter? ACTA ACUST UNITED AC 2018; 25:e356-e364. [PMID: 30464685 DOI: 10.3747/co.35.3930] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Introduction Neuroendocrine tumours (nets) are a poorly understood malignancy lacking standardized care. Differences in socioeconomic status (ses) might worsen the effect of non-standardized care. We examined the effect of ses on net peri-diagnostic care patterns and outcomes. Methods In this population-based cohort study, net cases identified from a provincial cancer registry (1994-2009) were divided into low (1st and 2nd income quintiles) and high (3rd, 4th, and 5th quintiles) ses groups. We compared peri-diagnostic health care utilization (-2 years to +6 months), metastatic recurrence, and overall survival (os) between the groups. Results Of 4966 net patients, 38.3% had a low ses. Neither the primary net sites (p = 0.15), nor the metastatic presentation (p = 0.31) differed. Patients with low ses had a higher mean number of physician visits (20.1 ± 19.9 vs. 18.1 ± 16.5, p = 0.001) and imaging studies (56 ± 50 vs. 52 ± 44, p = 0.009) leading to the net diagnosis. Rates of primary tumour resection (p = 0.14), hepatectomy (p = 0.45), systemic therapy (p = 0.38), and liver embolization (p = 0.13) did not differ with ses. In the low-ses group, metastatic recurrence was more likely (41.1% vs. 37.6%, p = 0.01) during a median follow-up of 61.7 months, and the 10-year os was inferior (47.1% vs. 52.2%, p < 0.01). Low ses was associated with worse os (hazard ratio: 1.16; 95% confidence interval: 1.06 to 1.26) after adjustment for age, sex, comorbidity burden, primary net site, and rural living. Conclusions Low ses was associated with more physician visits and imaging before a net diagnosis, but not with more advanced stage at presentation nor with an effect on the pattern of therapy. Long-term outcomes were inferior in the low-ses group. These data can help to inform the design of health care delivery for nets.
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Affiliation(s)
- J Hallet
- Susan Leslie Clinic for Neuroendocrine Tumours, Odette Cancer Centre at Sunnybrook Health Sciences Centre, University of Toronto, ON.,Department of Surgery, University of Toronto, ON.,Institute for Clinical Evaluative Sciences, University of Toronto, ON.,Sunnybrook Research Institute, University of Toronto, ON
| | - N G Coburn
- Department of Surgery, University of Toronto, ON.,Institute for Clinical Evaluative Sciences, University of Toronto, ON.,Sunnybrook Research Institute, University of Toronto, ON
| | - S Singh
- Susan Leslie Clinic for Neuroendocrine Tumours, Odette Cancer Centre at Sunnybrook Health Sciences Centre, University of Toronto, ON.,Institute for Clinical Evaluative Sciences, University of Toronto, ON.,Sunnybrook Research Institute, University of Toronto, ON.,Department of Medicine, University of Toronto, ON
| | - K Beyfuss
- Sunnybrook Research Institute, University of Toronto, ON
| | - S Koujanian
- Sunnybrook Research Institute, University of Toronto, ON
| | - N Liu
- Institute for Clinical Evaluative Sciences, University of Toronto, ON
| | - C H L Law
- Susan Leslie Clinic for Neuroendocrine Tumours, Odette Cancer Centre at Sunnybrook Health Sciences Centre, University of Toronto, ON.,Department of Surgery, University of Toronto, ON.,Sunnybrook Research Institute, University of Toronto, ON
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24
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Jin CJ, Kong W, Mackillop WJ. Estimating the need for palliative radiotherapy for non-small cell lung cancer: A criterion-based benchmarking approach. Radiother Oncol 2018; 128:541-547. [PMID: 29934108 DOI: 10.1016/j.radonc.2018.06.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 05/30/2018] [Accepted: 06/03/2018] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND PURPOSE Estimates of appropriate treatment rates are required for monitoring and improving access to cancer care. Optimal utilization rates for palliative radiotherapy (PRT) for patients with non-small cell lung cancer (NSCLC) remain undefined. We aim to estimate the appropriate PRT rate for the general NSCLC population. MATERIALS AND METHODS Ontario's population-based cancer registry identified patients with NSCLC who died of their disease between 2006 and 2010. Multivariate analysis identified factors affecting PRT use, enabling us to define a benchmark population with unimpeded access to PRT. Proportion of cases treated in the last 2 years of life (PRT2y) was standardized to overall population characteristics. Benchmarks were compared to province-wide PRT2y rates. RESULTS Availability of RT at the diagnosing hospital was the dominant determinant of increased PRT utilization. Patients diagnosed at hospitals with on site RT were therefore designated the benchmark population. The standardized benchmark for PRT2y was 56%, compared to the province-wide rate of 49%. The gap between actual and optimal rates varied across patient ages, treatment indications, and geographic regions. CONCLUSIONS Approximately 56% of patients who die of NSCLC in Ontario need PRT, but many are never treated.
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Affiliation(s)
- Chunzi Jenny Jin
- Department of Oncology, Queen's University, Kingston, Ontario, Canada
| | - Weidong Kong
- Cancer Care and Epidemiology, Queen's Cancer Research Institute, Queen's University, Kingston, Ontario, Canada
| | - William J Mackillop
- Department of Oncology, Queen's University, Kingston, Ontario, Canada; Cancer Care and Epidemiology, Queen's Cancer Research Institute, Queen's University, Kingston, Ontario, Canada; Department of Public Health Sciences, Queen's University, Kingston, Ontario, Canada.
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25
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Radespiel-Tröger M, Geiss K, Twardella D, Maier W, Meyer M. Cancer incidence in urban, rural, and densely populated districts close to core cities in Bavaria, Germany. Int Arch Occup Environ Health 2017; 91:155-174. [DOI: 10.1007/s00420-017-1266-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 10/02/2017] [Indexed: 11/29/2022]
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26
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Singh H, Nugent Z, Decker K, Deniers A, Samaddar J, Torabi M. Geographic variation and factors associated with colorectal cancer incidence in Manitoba. Canadian Journal of Public Health 2017; 108:e558-e564. [PMID: 31823281 DOI: 10.17269/cjph.108.6091] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Accepted: 09/03/2011] [Indexed: 12/27/2022]
Abstract
OBJECTIVES Although individuals living in areas with lower household income have been shown to have higher rates of mortality from colorectal cancer (CRC), findings on the effect of income on CRC incidence in countries with universal health care have been inconsistent. There are limited data from Canada. We investigated the geographic variation and factors associated with CRC incidence in Manitoba, a central Canadian province. METHODS The Manitoba Cancer Registry and Manitoba Health population registry were used to determine age-sex-standardized CRC incidence rates between 1985 and 2012, which were geocoded to 498 small geographic areas (SGAs). The 2001 Canadian Census was used to determine the socio-demographic characteristics of the SGAs. Bayesian spatial Poisson modelling was used to assess geographic variation and factors associated with CRC incidence. RESULTS CRC incidence in SGAs ranged from 11 to 1026 per 100 000 population per year. Importantly, in the fully adjusted model there was no significant association between either average household income or proportion of recent immigrants in the SGAs and CRC incidence. Individuals living in urban areas had an overall lower CRC incidence (incidence rate ratio: 0.76; 95% credible interval: 0.58-0.98). CONCLUSIONS In a province with a universal health care system, our study suggests there are no disparities in CRC incidence by socio-economic level of the areas of residence. Rural areas should be a focus of CRC reduction initiatives in Manitoba. Similar analysis in other jurisdictions should be performed to evaluate the effect of the characteristics of SGAs on CRC incidence in different settings and target some of the efforts to reduce CRC burden.
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Affiliation(s)
- Harminder Singh
- Internal Medicine, University of Manitoba, Winnipeg, MB, Canada. .,Department of Hematology and Oncology, CancerCare Manitoba, Winnipeg, MB, Canada. .,Community Health Sciences, University of Manitoba, Winnipeg, MB, Canada.
| | - Zoann Nugent
- Department of Epidemiology and Cancer Registry, CancerCare Manitoba, Winnipeg, MB, Canada
| | - Kathleen Decker
- Community Health Sciences, University of Manitoba, Winnipeg, MB, Canada.,Department of Epidemiology and Cancer Registry, CancerCare Manitoba, Winnipeg, MB, Canada
| | - Alain Deniers
- Community Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Jewel Samaddar
- Internal Medicine, University of Utah, Salt Lake City, UT, USA
| | - Mahmoud Torabi
- Community Health Sciences, University of Manitoba, Winnipeg, MB, Canada
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27
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Khosravi Shadmani F, Ayubi E, Khazaei S, Sani M, Mansouri Hanis S, Khazaei S, Soheylizad M, Mansori K. Geographic distribution of the incidence of colorectal cancer in Iran: a population-based study. Epidemiol Health 2017; 39:e2017020. [PMID: 28774167 PMCID: PMC5543296 DOI: 10.4178/epih.e2017020] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 05/17/2017] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVES Colorectal cancer (CRC) is the third most common cancer and the fourth most common cause of cancer death in the world. The aim of this study was to investigate the provincial distribution of the incidence of CRC across Iran. METHODS This epidemiologic study used data from the National Cancer Registry of Iran and the Center for Disease Control and Prevention of the Ministry of Health and Medical Education of Iran. The average annual age-standardized rate (ASR) for the incidence of CRC was calculated for each province. RESULTS We found that adenocarcinoma (not otherwise specified) was the most common histological subtype of CRC in males and females, accounting for 81.91 and 81.95% of CRC cases, respectively. Signet ring cell carcinoma was the least prevalent subtype of CRC in males and females and accounted for 1.5 and 0.94% of CRC cases, respectively. In patients aged 45 years or older, there was a steady upward trend in the incidence of CRC, and the highest ASR of CRC incidence among both males and females was in the age group of 80-84 years, with an ASR of 144.69 per 100,000 person-years for males and 119.18 per 100,000 person-years for females. The highest incidence rates of CRC in Iran were found in the central, northern, and western provinces. Provinces in the southeast of Iran had the lowest incidence rates of CRC. CONCLUSIONS Wide geographical variation was found in the incidence of CRC across the 31 provinces of Iran. These variations must be considered for prevention and control programs for CRC, as well as for resource allocation purposes.
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Affiliation(s)
- Fatemeh Khosravi Shadmani
- Modeling in Health Research Center, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Erfan Ayubi
- Department of Epidemiology, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Salman Khazaei
- Department of Epidemiology, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohadeseh Sani
- School of Medicine, Zabol University of Medical Sciences, Zabol, Iran
| | | | - Somayeh Khazaei
- Department of Para Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mokhtar Soheylizad
- Social Determinants in Health Promotion Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Kamyar Mansori
- Social Development and Health Promotion Research Center, Gonabad University of Medical Sciences, Gonabad, Iran.,Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
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Gonorrhea infection increases the risk of prostate cancer in Asian population: a nationwide population-based cohort study. Eur J Clin Microbiol Infect Dis 2016; 36:813-821. [PMID: 28013414 DOI: 10.1007/s10096-016-2866-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 12/06/2016] [Indexed: 12/27/2022]
Abstract
This nationwide population-based retrospective cohort study evaluated the risk of developing prostate cancer among patients with gonorrhea. We identified cases of newly diagnosed gonorrhea in men between 2000 and 2010 from the Taiwan National Health Insurance Research Database. Each patient with gonorrhea was matched to four controls, based on age and index year. All subjects were followed up from the index date to December 31, 2010. The Cox proportional hazards regression model was used to assess the risk of prostate cancer. A total of 355 men were included in the study group, and 1,420 age-matched subjects without gonorrhea were included in the control group. After adjusting for age, comorbidities, urbanization level, hospital level, and monthly income, gonorrhea was significantly associated with an increased risk of prostate cancer (adjusted hazard ratio = 5.66, 95% confidence interval = 1.36-23.52). Men aged 45-70 years and those with lower monthly income were more strongly associated with prostate cancer in the study group than the control group. The higher risk for developing prostate cancer were also found in those without syphilis, without genital warts, without diabetes mellitus, without chronic obstructive pulmonary disease, without benign prostatic hypertrophy, without chronic prostatitis, and without alcoholism. The Kaplan-Meier analysis showed the risk of prostate cancer was significantly higher in the study group than in the control group. Gonorrhea may be involved in the development of prostate cancer. More intensive screening and prevention interventions for prostate cancer should be recommended in men with gonorrhea.
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29
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Mahdavifar N, Towhidi F, Makhsosi BR, Pakzad R, Moini A, Ahmadi A, Lotfi S, Salehiniya H. Incidence and Mortality of Nasopharynx Cancer and Its Relationship With Human Development Index in the World in 2012. World J Oncol 2016; 7:109-118. [PMID: 28983375 PMCID: PMC5624652 DOI: 10.14740/wjon980w] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2016] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND One of the most common cancers in head and neck is nasopharynx. Knowledge about the incidence and mortality of this disease and its distribution in terms of geographical areas is necessary for further study, better planning and prevention. Therefore, this study aimed to determine the incidence and mortality of nasopharynx cancer and its relationship with human development index (HDI) in the world in 2012. METHODS This study was an ecological study conducted based on GLOBOCAN project of World Health Organization (WHO) for the countries in world. The correlation between standardized incidence rates (SIRs) and standardized mortality rates (SMRs) of nasopharynx cancer with HDI and its components was assessed with correlation coefficient by using SPSS 15. RESULTS In 2012, 86,691 nasopharynx cancer cases occurred in the world, so that 60,896 new cases were seen in men and 25,795 new cases in women (sex ratio = 2.36). SIR of the cancer was 1.2 per 100,000 (1.7 in men and 0.7 in women per 100,000) in the world. In 2012, 50,831 nasopharynx death cases occurred in the world, so that 35,756 death cases were seen in men and 15,075 death cases in women (sex ratio = 2.37). SIR of mortality from the cancer was 0.7 per 100,000 (0.7 in women and 1 in men per 100,000) in the world. The results of correlation analysis showed a negative correlation between the SIR and HDI (r = -0.037, P = 0.629), and also the results of correlation analysis showed a negative correlation between the SMR and HDI (r = -0.237, P = 0.002). CONCLUSION Nasopharyngeal cancer is native to Southeast Asia and the highest incidence and mortality were seen in countries with moderate and low HDI. It is suggested that studies are conducted on determining the causes of the cancer incidence and mortality in the world and the differences between various regions.
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Affiliation(s)
- Neda Mahdavifar
- Health Promotion Research Center, Department of Epidemiology and Biostatistics, School of Public Health, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Farhad Towhidi
- Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | | | - Reza Pakzad
- Student Research Committee, Ilam University of Medical Sciences, Ilam, Iran
| | - Ali Moini
- Department of Internal Medicine, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Abbas Ahmadi
- Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sarah Lotfi
- Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hamid Salehiniya
- Zabol University of Medical Sciences, Zabol, Iran
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Mungrue K, Chase H, Gordon J, Knowles D, Lockhart K, Miller N, Morley T, Sealey L, Turner B. Breast Cancer in the Bahamas in 2009-2011. BREAST CANCER-BASIC AND CLINICAL RESEARCH 2016; 10:45-52. [PMID: 27127408 PMCID: PMC4841291 DOI: 10.4137/bcbcr.s32792] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 10/15/2015] [Accepted: 10/19/2015] [Indexed: 01/13/2023]
Abstract
BACKGROUND Breast cancer is the most common form of cancer affecting women in the Bahamas, which consists of many islands. This is the first attempt to identify which island has the highest occurrence of breast cancer. OBJECTIVE The aim of this study was to describe the sociodemographical and spatial features of breast cancer in the Bahamas in 2009-2011. METHODS A review of the medical records of all women with a confirmed diagnosis of breast cancer during the period January 1, 2009-December 31, 2011, was undertaken. Data were first obtained from the National Oncology Board of the Bahamas and validated by a review of the medical records. The patient address was geocoded and mapped using ArcGIS 10.0 Environmental Systems Research Institute (ESRI) to satellite images obtained from The Nature Conservancy in the Bahamas. RESULTS We recruited 270 patients who satisfied the entry criteria. The cumulative incidences of breast cancer for the years 2009-2011 were 51.4, 45.4, and 51.4, respectively. Breast cancer occurred most often in women of African origin with a mean age at diagnosis of 56.6 ± 13.8 years. Ductal carcinoma was the most common histological type observed with most cancers occurring in Grade II or higher and presenting as late stage (≥ Stage II). Surgery was the preferred method of treatment with modified radical mastectomy being the procedure of choice. Spatial distribution of cases across the Bahamas revealed one cluster, which is present on the island of New Providence. Further analysis of New Providence showed a consistently skewed kernel density in the central and eastern regions, compared with a scattered distribution in the southern and western regions. CONCLUSION The island of New Providence had the highest occurrence of breast cancer among all the islands of the Bahamas. The increasing incidence of breast cancer in young women is likely to impose a significant burden on the future of Bahamian health care.
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Affiliation(s)
- K Mungrue
- Department of Para-Clinical Sciences, Faculty of Medical Sciences, University of the West Indies, St. Augustine, Trinidad
| | - H Chase
- Department of Para-Clinical Sciences, Faculty of Medical Sciences, University of the West Indies, St. Augustine, Trinidad
| | - J Gordon
- Department of Para-Clinical Sciences, Faculty of Medical Sciences, University of the West Indies, St. Augustine, Trinidad
| | - D Knowles
- Department of Para-Clinical Sciences, Faculty of Medical Sciences, University of the West Indies, St. Augustine, Trinidad
| | - K Lockhart
- Department of Para-Clinical Sciences, Faculty of Medical Sciences, University of the West Indies, St. Augustine, Trinidad
| | - N Miller
- Department of Para-Clinical Sciences, Faculty of Medical Sciences, University of the West Indies, St. Augustine, Trinidad
| | - T Morley
- Department of Para-Clinical Sciences, Faculty of Medical Sciences, University of the West Indies, St. Augustine, Trinidad
| | - L Sealey
- Department of Para-Clinical Sciences, Faculty of Medical Sciences, University of the West Indies, St. Augustine, Trinidad
| | - B Turner
- Department of Para-Clinical Sciences, Faculty of Medical Sciences, University of the West Indies, St. Augustine, Trinidad
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Kumachev A, Trudeau ME, Chan KKW. Associations among socioeconomic status, patterns of care, and outcomes in breast cancer patients in a universal health care system: Ontario's experience. Cancer 2015; 122:893-8. [DOI: 10.1002/cncr.29838] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 10/23/2015] [Accepted: 11/13/2015] [Indexed: 11/06/2022]
Affiliation(s)
| | - Maureen E. Trudeau
- Faculty of Medicine; University of Toronto; Toronto Ontario Canada
- Sunnybrook Odette Cancer Center; University of Toronto; Toronto Ontario Canada
| | - Kelvin K. W. Chan
- Sunnybrook Odette Cancer Center; University of Toronto; Toronto Ontario Canada
- Division of Biostatistics, Dalla Lana School of Public Health; University of Toronto; Toronto Ontario Canada
- Canadian Centre of Applied Research for Cancer Control; Canada
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Abdel-Hadi M, Khalaf A, Aboulkassem H, Naeem N, Baqy MA, Sallam H. Cervical intraepithelial lesions in females attending Women's Health Clinics in Alexandria, Egypt. Cytojournal 2015. [PMID: 26195985 PMCID: PMC4485213 DOI: 10.4103/1742-6413.159240] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background: Data from Egyptian studies provide widely varying estimates on the prevalence of preinvasive cervical lesions. The aim of this study was to estimate the rate of cervical intraepithelial neoplasia (CIN) in Egyptian women living in Alexandria to clarify the need for implementing a national organized screening program and a vaccination program in our community. Materials and Methods: The study was conducted over a 6 years period and covered the different socioeconomic levels to have a representative sample for women living in Alexandria. All women included did not have any cervical disorder related complaints. Conventional Pap smears were obtained and diagnosed using the Bethesda system. Women with abnormal Pap smears were managed according to the 2006 consensus guidelines within the available facilities. Persistent abnormal cytological results were referred for colposcopic biopsy. Histological results were grouped into: Reactive changes, CIN 1, CIN 2/CIN 3 and adenocarcinoma in-situ (AIS). Results: Out of the 6173 smears included in the study 6072 (98.36%) were normal and only 101 (1.63%) were abnormal. After colposcopic biopsies, 0.08% had CIN 1, 0.03% had CIN 2, 3 and 0.01% had AIS. Conclusion: We concluded that cervical cancer screening programs, although life-saving for a number of women, are not a sufficiently high priority in our community. Money for national health screening programs should preferably be directed more towards recruiting women for breast cancer screening, since breast cancer accounts for about 33% of all female cancers in Egypt ranking number one, while cervical cancer ranks number 13.
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Affiliation(s)
- Mona Abdel-Hadi
- Address: Department of Pathology, Faculty of Medicine. Alexandria University, Alexandria, Egypt ; Pathology Laboratory, Alexandria Regional Centre for Women's Health and Development, Alexandria, Egypt
| | - Adel Khalaf
- Gynecology Clinics, Alexandria Regional Centre for Women's Health and Development, Alexandria, Egypt
| | - Hanaa Aboulkassem
- Gynecology Clinics, Alexandria Regional Centre for Women's Health and Development, Alexandria, Egypt
| | - Noha Naeem
- Gynecology Clinics, Alexandria Regional Centre for Women's Health and Development, Alexandria, Egypt
| | - Mohamed Abdel Baqy
- Department of Community, Epidemiology Unit, Alexandria Regional Centre for Women's Health and Development, Alexandria, Egypt
| | - Hassan Sallam
- Department of Obstetrics and Gynecology, Faculty of Medicine Alexandria University, Alexandria, Egypt
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Bryere J, Pornet C, Dejardin O, Launay L, Guittet L, Launoy G. Correction of misclassification bias induced by the residential mobility in studies examining the link between socioeconomic environment and cancer incidence. Cancer Epidemiol 2015; 39:256-64. [DOI: 10.1016/j.canep.2014.12.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 12/05/2014] [Accepted: 12/17/2014] [Indexed: 11/15/2022]
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A Comparison of Evidence-Based Estimates and Empirical Benchmarks of the Appropriate Rate of Use of Radiation Therapy in Ontario. Int J Radiat Oncol Biol Phys 2015; 91:1099-107. [DOI: 10.1016/j.ijrobp.2014.11.026] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Revised: 10/31/2014] [Accepted: 11/17/2014] [Indexed: 11/21/2022]
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Akinyemiju TF, Genkinger JM, Farhat M, Wilson A, Gary-Webb TL, Tehranifar P. Residential environment and breast cancer incidence and mortality: a systematic review and meta-analysis. BMC Cancer 2015; 15:191. [PMID: 25885593 PMCID: PMC4396806 DOI: 10.1186/s12885-015-1098-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 02/20/2015] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Factors beyond the individual level such as those characterizing the residential environment may be important to breast cancer outcomes. We provide a systematic review and results of meta-analysis of the published empirical literature on the associations between breast cancer risk and mortality and features of the residential environment. METHODS Using PRISMA guidelines, we searched four electronic databases and manually searched the references of selected articles for studies that were published before June 2013. We selected English language articles that presented data on adult breast cancer incidence or mortality in relation to at least one area-based residential (ABR) independent variable. RESULTS We reviewed 31 eligible studies, and observed variations in ABR construct definition and measurement, study design, and analytic approach. The most common ABR measures were indicators of socioeconomic status (SES) (e.g., income, education, summary measures of several SES indicators or composite SES). We observed positive associations between breast cancer incidence and urbanization (Pooled RR for urban vs. rural: 1.09. 95% CI: 1.01, 1.19), ABR income (Pooled RR for highest vs. lowest ABR income: 1.17, 95% CI: 1.15, 1.19) and ABR composite SES (Pooled RR for highest vs. lowest ABR composite SES: 1.25, 95% CI: 1.08, 1.44). We did not observe consistent associations between any ABR measures and breast cancer mortality. CONCLUSIONS The findings suggest modest positive associations between urbanization and residential area socioeconomic environment and breast cancer incidence. Further studies should address conceptual and methodological gaps in the current publications to enable inference regarding the influence of the residential environment on breast cancer.
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Affiliation(s)
- Tomi F Akinyemiju
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY, USA.
| | - Jeanine M Genkinger
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY, USA.
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY, USA.
| | - Maggie Farhat
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY, USA.
| | - Adrienne Wilson
- Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, MI, USA.
| | - Tiffany L Gary-Webb
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY, USA.
- Departments of Community and Behavioral Sciences and Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA.
| | - Parisa Tehranifar
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY, USA.
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY, USA.
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Remes O, Smith LM, Alvarado-Llano BE, Colley L, Lévesque LE. Individual- and regional-level determinants of human papillomavirus (HPV) vaccine refusal: the Ontario Grade 8 HPV vaccine cohort study. BMC Public Health 2014; 14:1047. [PMID: 25297055 PMCID: PMC4210569 DOI: 10.1186/1471-2458-14-1047] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 10/01/2014] [Indexed: 12/02/2022] Open
Abstract
Background Studies on the determinants of human papillomavirus (HPV) vaccine use have generally focused on individual-level characteristics, despite the potentially important influence of regional-level characteristics. Therefore, we undertook a population-based, retrospective cohort study to identify individual- and regional-level determinants of HPV vaccine refusal (non-receipt) in Ontario’s (Canada) Grade 8 HPV Immunization Program. Methods Ontario’s administrative health and immunization databases were used to identify girls eligible for free HPV vaccination in 2007–2011 and to ascertain individual-level characteristics of cohort members (socio-demographics, vaccination history, health care utilization, medical history). The social and material characteristics of the girl’s region (health unit) were derived from the 2006 Canadian Census. Generalized estimating equations (binomial distribution, logit link) were used to estimate the population-average effects of individual- and regional-level characteristics on HPV vaccine refusal. Results Our cohort consisted of 144,047 girls, 49.3% of whom refused HPV vaccination. Factors associated with refusal included a previous diagnosis of Down’s syndrome (OR = 1.37, 95% CI 1.16-1.63) or autism (OR = 1.60, 95% CI 1.34-1.90), few physician visits (OR = 1.45, 95% CI 1.35-1.55), and previous refusal of mandatory (OR = 2.23, 95% CI 2.07-2.40) and optional (OR = 3.96, 95% CI 3.87-4.05) vaccines. Refusal was highest among the lowest and highest income levels. Finally, a previous diagnosis of obesity and living in an area of high deprivation were associated with lower refusal (OR = 0.87, 95% CI 0.83-0.92 and OR = 0.82 95%, CI 0.79-0.86, respectively). Conclusions Studies on HPV vaccine determinants should consider regional-level factors. Efforts to increase HPV vaccine acceptance should include vulnerable populations (such as girls of low income) and girls with limited contact with the healthcare system. Electronic supplementary material The online version of this article (doi:10.1186/1471-2458-14-1047) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | | | | | - Linda E Lévesque
- Department of Public Health Sciences, Queen's University, 21 Arch Street, Room 313, Kingston, Ontario, Canada.
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Lu X, Lessner L, Carpenter DO. Association between hospital discharge rate for female breast cancer and residence in a zip code containing hazardous waste sites. ENVIRONMENTAL RESEARCH 2014; 134:375-81. [PMID: 25212265 DOI: 10.1016/j.envres.2014.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 06/19/2014] [Accepted: 07/12/2014] [Indexed: 05/23/2023]
Abstract
BACKGROUND Exposure to chemicals plays a role in risk of breast cancer. However, possible associations between risk of breast cancer and residential proximity to hazardous waste sites (HWSs) have not been reported. METHODS We determined rates of hospital discharge with a diagnosis of female breast cancer in relation to residence in a zip code containing HWSs in New York State (NYS) after adjustment for ethnicity, age, income and urbanicity. Waste exposure was assessed by both the number of waste sites and the type of contaminants. Negative binomial regression was used to test the associations. RESULTS After controlling for confounders, the hospital discharge rate of breast cancer for women living in zip codes having four or more HWSs or in zip codes having one HWS increased significantly (at the 0.05 level) by 9.1% and 6.4%, as compared to those living in a zip code with no HWS. The association for women living in zip codes having two or three HWSs was not significant. This indicates that the extent of exposure cannot be assessed solely by the number of waste sites. The discharge rate for women living in zip codes containing at least one volatile organic compound (VOC) waste site was significantly increased 5.6% as compared to those living in a zip code without any HWS, while the increases were not significant for women living in zip codes containing waste sites with persistent organic pollutants (POPs) or other contaminants. The significant associations were stronger for African American than Caucasian women and stronger in more urbanized than in rural areas. CONCLUSIONS Residence within a geographic area (defined by zip codes) that includes a hazardous waste site with VOCs is significantly associated with an increased rate of hospitalization for breast cancer, and the association is stronger for African American than Caucasian women and stronger in more urbanized than in rural areas after adjustment for the confounders.
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Affiliation(s)
- Xiaoxia Lu
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, China; Institute for Health and the Environment, University at Albany, 5 University Place, A217, Rensselaer, New York 12144, USA.
| | - Lawrence Lessner
- Institute for Health and the Environment, University at Albany, 5 University Place, A217, Rensselaer, New York 12144, USA.
| | - David O Carpenter
- Institute for Health and the Environment, University at Albany, 5 University Place, A217, Rensselaer, New York 12144, USA.
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Manser CN, Bauerfeind P. Impact of socioeconomic status on incidence, mortality, and survival of colorectal cancer patients: a systematic review. Gastrointest Endosc 2014; 80:42-60.e9. [PMID: 24950641 DOI: 10.1016/j.gie.2014.03.011] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 03/05/2014] [Indexed: 12/13/2022]
Affiliation(s)
- Christine N Manser
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Zurich University Hospital, Zurich, Switzerland
| | - Peter Bauerfeind
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Zurich University Hospital, Zurich, Switzerland
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Pollution in the working place and social status: co-factors in lung cancer carcinogenesis. Lung Cancer 2014; 85:346-50. [PMID: 24999084 DOI: 10.1016/j.lungcan.2014.06.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Revised: 05/27/2014] [Accepted: 06/16/2014] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Apart from the association with tobacco consumption, other factors of importance for prevention and early diagnosis of lung cancer have received little attention. We present a case-control study focusing on professional exposure to carcinogens and social status. METHODS A written questionnaire was completed by 551 consecutive patients with lung cancer and 494 patients with large bowel cancer. The groups were balanced regarding gender and age distribution. The questionnaire included data on place of birth, education, smoking history, diet and alcohol intake, body weight and height, occupation, housing conditions and family income. According to standard epidemiological criteria, professional exposure to carcinogens was classified as professions with exposure to confirmed lung cancer carcinogens, professions with exposure to suspected lung cancer carcinogens and other professions. RESULTS As expected, there were significant differences between the two groups regarding smoking status. While there were no significant differences in educational levels, more immigrants were among patients with lung cancer (17.9% vs 11.6%, p=0.005). On average, lung cancer patients had a lower body mass index (BMI) at 24.77, as compared to 26.14 for large bowel cancer (p=0.000). Lung cancer patients had lower income and poorer housing conditions; the bivariate difference was significant both for income levels (p=0.046) and type of residence (p=0.009). The proportion of patients working in professions with exposures to known carcinogens was 33.5% for lung cancer, and 17.1% for large bowel cancer (p=0.000). In the multivariate analysis, smoking (p=0.000), BMI (p=0.000) and type of occupation (p=0.001) were significant factors. CONCLUSIONS While there is no doubt about smoking in lung cancer carcinogenesis, professional exposure to carcinogens and belonging to lower socio-economic strata also play an important role.
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Bryere J, Dejardin O, Bouvier V, Colonna M, Guizard AV, Troussard X, Pornet C, Galateau-Salle F, Bara S, Launay L, Guittet L, Launoy G. Socioeconomic environment and cancer incidence: a French population-based study in Normandy. BMC Cancer 2014; 14:87. [PMID: 24524213 PMCID: PMC3930294 DOI: 10.1186/1471-2407-14-87] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Accepted: 02/12/2014] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The struggle against social inequalities is a priority for many international organizations. The objective of the study was to quantify the cancer burden related to social deprivation by identifying the cancer sites linked to socioeconomic status and measuring the proportion of cases associated with social deprivation. METHODS The study population comprised 68 967 cases of cancer diagnosed between 1997 and 2009 in Normandy and collected by the local registries. The social environment was assessed at an aggregated level using the European Deprivation Index (EDI). The association between incidence and socioeconomic status was assessed by a Bayesian Poisson model and the excess of cases was calculated with the Population Attributable Fraction (PAF). RESULTS For lung, lips-mouth-pharynx and unknown primary sites, a higher incidence in deprived was observed for both sexes. The same trend was observed in males for bladder, liver, esophagus, larynx, central nervous system and gall-bladder and in females for cervix uteri. The largest part of the incidence associated with deprivation was found for cancer of gall-bladder (30.1%), lips-mouth-pharynx (26.0%), larynx (23.2%) and esophagus (19.6%) in males and for unknown primary sites (18.0%) and lips-mouth-pharynx (12.7%) in females. For prostate cancer and melanoma in males, the sites where incidence increased with affluence, the part associated with affluence was respectively 9.6% and 14.0%. CONCLUSIONS Beyond identifying cancer sites the most associated with social deprivation, this kind of study points to health care policies that could be undertaken to reduce social inequalities.
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Affiliation(s)
- Josephine Bryere
- U1086 INSERM Cancers & Preventions, Avenue du Général Harris, Caen 14076, France
| | - Olivier Dejardin
- U1086 INSERM Cancers & Preventions, Avenue du Général Harris, Caen 14076, France
- CHU, Avenue de la Côte de Nacre, Caen 14000, France
- Federation of cancer registries of Basse-Normandie, Caen, France
| | - Veronique Bouvier
- U1086 INSERM Cancers & Preventions, Avenue du Général Harris, Caen 14076, France
- CHU, Avenue de la Côte de Nacre, Caen 14000, France
- Federation of cancer registries of Basse-Normandie, Caen, France
| | | | - Anne-Valérie Guizard
- U1086 INSERM Cancers & Preventions, Avenue du Général Harris, Caen 14076, France
- CRLCC, Avenue du Général Harris, Caen 14076, France
- Federation of cancer registries of Basse-Normandie, Caen, France
| | - Xavier Troussard
- U1086 INSERM Cancers & Preventions, Avenue du Général Harris, Caen 14076, France
- CHU, Avenue de la Côte de Nacre, Caen 14000, France
- Federation of cancer registries of Basse-Normandie, Caen, France
| | - Carole Pornet
- U1086 INSERM Cancers & Preventions, Avenue du Général Harris, Caen 14076, France
- CHU, Avenue de la Côte de Nacre, Caen 14000, France
| | - Françoise Galateau-Salle
- U1086 INSERM Cancers & Preventions, Avenue du Général Harris, Caen 14076, France
- CHU, Avenue de la Côte de Nacre, Caen 14000, France
- Federation of cancer registries of Basse-Normandie, Caen, France
| | - Simona Bara
- U1086 INSERM Cancers & Preventions, Avenue du Général Harris, Caen 14076, France
- Public hospital, rue Trottebec, Cherbourg 50100, France
- Federation of cancer registries of Basse-Normandie, Caen, France
| | - Ludivine Launay
- U1086 INSERM Cancers & Preventions, Avenue du Général Harris, Caen 14076, France
| | - Lydia Guittet
- U1086 INSERM Cancers & Preventions, Avenue du Général Harris, Caen 14076, France
- CHU, Avenue de la Côte de Nacre, Caen 14000, France
| | - Guy Launoy
- U1086 INSERM Cancers & Preventions, Avenue du Général Harris, Caen 14076, France
- CHU, Avenue de la Côte de Nacre, Caen 14000, France
- Federation of cancer registries of Basse-Normandie, Caen, France
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Hwang E, Johnson-Obaseki S, McDonald JT, Connell C, Corsten M. Incidence of head and neck cancer and socioeconomic status in Canada from 1992 to 2007. Oral Oncol 2013; 49:1072-6. [PMID: 24018186 DOI: 10.1016/j.oraloncology.2013.08.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 05/05/2013] [Accepted: 08/14/2013] [Indexed: 10/26/2022]
Abstract
OBJECTIVE To investigate the association between head and neck cancer (HNC) incidence and socioeconomic status (SES) in Canada, and investigate changes in the relationship between HNC incidence and SES from 1992 to 2007. MATERIALS AND METHODS Cases were drawn from the Canadian Cancer Registry (1992-2007), and were categorized into three subsites: oropharynx, oral cavity, and "other" (hypopharynx, larynx, and nasopharynx). Demographic and socioeconomic information were extracted from the Canadian Census of Population data for the study period (1992-2007), which included four census years. We linked cases to income quintiles (InQs) according to patients' postal codes. RESULTS Incidence rates in the lowest InQs were significantly higher than in the highest InQs for all HNC subsites. The incidence of oropharyngeal cancer increased over the time period 1992-2007 for all InQs. However, the greatest increase in incidence was in the highest InQs. As a result, over the time period the gap between the incidence of the highest and lowest InQs significantly narrowed for oropharyngeal cancer. For oral cavity cancer and the other head and neck cancers, the overall incidence did not increase and the gap in incidence did not change significantly. CONCLUSION HNC incidence was higher with lower income in all HNC subsites in Canada from 1992 to 2007. The gap in incidence between the highest and the lowest InQs narrowed for oropharyngeal cancer over the time period studied, but was unchanged for the other HNC subsites.
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Affiliation(s)
- Euna Hwang
- Department of Otolaryngology-Head and Neck Surgery, University of Ottawa, Ottawa, Canada
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Ribeiro ADA, Nardocci AC. Desigualdades socioeconômicas na incidência e mortalidade por câncer: revisão de estudos ecológicos, 1998-2008. SAUDE E SOCIEDADE 2013. [DOI: 10.1590/s0104-12902013000300020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
INTRODUÇÃO: Desigualdades socioeconômicas se manifestam na incidência e mortalidade por neoplasias malignas. Estudos ecológicos representam abordagem essencial em epidemiologia e podem contribuir na investigação dos determinantes sociais dos eventos em saúde. OBJETIVO: Investigar associações entre nível socioeconômico e incidência e mortalidade por câncer e seus tipos, através de revisão de estudos ecológicos. Definir a real importância desempenhada pelos estudos ecológicos na investigação dessa relação. MÉTODO: As principais bases de dados regionais e internacionais foram pesquisadas na seleção de artigos em português, espanhol e inglês, publicados entre 1998 e 2008. RESULTADOS: 32 estudos elegíveis foram incluídos. Verificou-se associação positiva e consistente do nível socioeconômico da área de residência com incidência de câncer de próstata e mortalidade pelo de cólon nos homens, e com incidência e mortalidade por câncer de mama e mortalidade pelo de cólon nas mulheres. Associação consistente e negativa foi encontrada para incidência e mortalidade por cânceres de esôfago e estômago, para incidência dos de cólon e pulmão e mortalidade pelos de laringe e cavidade oral, nos homens, e para incidência e a mortalidade pelos de esôfago, estômago e colo uterino e para incidência dos de cólon e pulmão, nas mulheres. CONCLUSÃO: Apesar da presença de efeito residual de área e de viés relacionado à medida agregada de nível socioeconômico, estudos ecológicos podem ser eficientemente utilizados na mensuração das desigualdades socioeconômicas em câncer. Uso de pequenas unidades geográficas e de dados de registros de câncer em países em desenvolvimento pode contribuir para melhor conhecimento de suas desigualdades em saúde.
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Abstract
BACKGROUND The rapidly rising incidence of papillary thyroid cancer may be due to overdiagnosis of a reservoir of subclinical disease. To conclude that overdiagnosis is occurring, evidence for an association between access to health care and the incidence of cancer is necessary. METHODS We used Surveillance, Epidemiology, and End Results (SEER) data to examine U.S. papillary thyroid cancer incidence trends in Medicare-age and non-Medicare-age cohorts over three decades. We performed an ecologic analysis across 497 U.S. counties, examining the association of nine county-level socioeconomic markers of health care access and the incidence of papillary thyroid cancer. RESULTS Papillary thyroid cancer incidence is rising most rapidly in Americans over age 65 years (annual percentage change, 8.8%), who have broad health insurance coverage through Medicare. Among those under 65, in whom health insurance coverage is not universal, the rate of increase has been slower (annual percentage change, 6.4%). Over three decades, the mortality rate from thyroid cancer has not changed. Across U.S. counties, incidence ranged widely, from 0 to 29.7 per 100,000. County papillary thyroid cancer incidence was significantly correlated with all nine sociodemographic markers of health care access: it was positively correlated with rates of college education, white-collar employment, and family income; and negatively correlated with the percentage of residents who were uninsured, in poverty, unemployed, of nonwhite ethnicity, non-English speaking, and lacking high school education. CONCLUSION Markers for higher levels of health care access, both sociodemographic and age-based, are associated with higher papillary thyroid cancer incidence rates. More papillary thyroid cancers are diagnosed among populations with wider access to healthcare. Despite the threefold increase in incidence over three decades, the mortality rate remains unchanged. Together with the large subclinical reservoir of occult papillary thyroid cancers, these data provide supportive evidence for the widespread overdiagnosis of this entity.
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Affiliation(s)
- Luc G.T. Morris
- Head and Neck Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Andrew G. Sikora
- Department of Otolaryngology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Tor D. Tosteson
- Section of Biostatistics and Epidemiology, Geisel School of Medicine at Dartmouth, Dartmouth University, Hanover, New Hampshire
| | - Louise Davies
- The VA Outcomes Group, White River Junction Veterans' Affairs Medical Center, White River Junction, Vermont
- The Dartmouth Institute for Health Policy and Clinical Practice; Dartmouth University, Hanover, New Hampshire
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Burnett-Hartman AN, Passarelli MN, Adams SV, Upton MP, Zhu LC, Potter JD, Newcomb PA. Differences in epidemiologic risk factors for colorectal adenomas and serrated polyps by lesion severity and anatomical site. Am J Epidemiol 2013; 177:625-37. [PMID: 23459948 DOI: 10.1093/aje/kws282] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Using a case-control design, we evaluated differences in risk factors for colorectal polyps according to histological type, anatomical site, and severity. Participants were enrollees in the Group Health Cooperative aged 20-79 years who underwent colonoscopy in Seattle, Washington, between 1998 and 2007 and comprised 628 adenoma cases, 594 serrated polyp cases, 247 cases with both types of polyps, and 1,037 polyp-free controls. Participants completed a structured interview, and polyps were evaluated via standardized pathology review. We used multivariable polytomous logistic regression to compare case groups with controls and with the other case groups. Factors for which the strength of the association varied significantly between adenomas and serrated polyps were sex (P < 0.001), use of estrogen-only postmenopausal hormone therapy (P = 0.01), and smoking status (P < 0.001). For lesion severity, prior endoscopy (P < 0.001) and age (P = 0.05) had significantly stronger associations with advanced adenomas than with nonadvanced adenomas; and higher education was positively correlated with sessile serrated polyps but not with other serrated polyps (P = 0.02). Statistically significant, site-specific associations were observed for current cigarette smoking (P = 0.05 among adenomas and P < 0.001 among serrated polyps), postmenopausal estrogen-only therapy (P = 0.01 among adenomas), and obesity (P = 0.01 among serrated polyps). These findings further illustrate the epidemiologic heterogeneity of colorectal neoplasia and may help elucidate carcinogenic mechanisms for distinct pathways.
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Affiliation(s)
- Andrea N Burnett-Hartman
- Department of Cancer Prevention, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.
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Kim JM, Kim HM, Jung BY, Park EC, Cho WH, Lee SG. The association between cancer incidence and family income: analysis of Korean National Health Insurance cancer registration data. Asian Pac J Cancer Prev 2013; 13:1371-6. [PMID: 22799334 DOI: 10.7314/apjcp.2012.13.4.1371] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Economic status is known to be directly or indirectly related to cancer incidence since it affects accessibility to health-related social resources, preventive medical checkups, and lifestyle. This study investigates the relationship between cancer incidence and family income in Korea. METHODS Using the Korean National Health Insurance cancer registration data in 2009, the relationship between their family income class and cancer risk was analyzed. The age-standardized incidence rates of the major cancers were calculated for men and women separately. After adjusting for age, residential area, and number of family members, cancer risks for major cancers according to family income class were estimated using a logistic regression model. RESULTS In men, the risk of stomach cancer for Income Class 5 (lowest) was 1.12 times (95% CI 1.02-1.23) higher than that of Income Class 1 (highest), for lung cancer 1.61 times (95% CI 1.43- 1.81) higher, for liver cancer 1.22 times (95% CI 1.08-1.37) higher, and for rectal cancer 1.37 times higher (95% CI 1.18-1.59). In women, the risk of stomach cancer for Income Class 5 was 1.22 times higher (95% CI 1.08-1.37) than that for Income Class 1, while for cervical cancer it was 2.47 times higher (95% CI 2.08- 2.94). In contrast, in men, Income Class 1 showed a higher risk of thyroid cancer and prostate cancer than that of Income Class 5, while, in women the same was the case for thyroid cancer. CONCLUSIONS The results show the relationship between family income and cancer risk differs according to type of cancer.
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Affiliation(s)
- Ji Man Kim
- Department of Public Health, Yonsei University Graduate School, Seoul, Korea
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Palmer JR, Boggs DA, Wise LA, Adams-Campbell LL, Rosenberg L. Individual and neighborhood socioeconomic status in relation to breast cancer incidence in African-American women. Am J Epidemiol 2012; 176:1141-6. [PMID: 23171873 DOI: 10.1093/aje/kws211] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Socioeconomic status (SES) for both individuals and neighborhoods has been positively associated with incidence of breast cancer, although not consistently. The authors conducted an assessment of these factors among African-American women, based on data from the Black Women's Health Study, a prospective cohort study of 59,000 African-American women from all regions of the United States. Individual SES was defined as the participant's self-reported level of education, and neighborhood SES was measured by a score based on census block group data for 6 indicators of income and education. Analyses included 1,343 incident breast cancer cases identified during follow-up from 1995 through 2009. In age-adjusted analyses, SES for both individuals and neighborhoods was associated with an increased incidence of estrogen receptor-positive breast cancer. The associations were attenuated by control for parity and age at first birth, and there was no association after further control for other breast cancer risk factors. These findings suggest that the observed associations of breast cancer with SES may be largely mediated by reproductive factors that are associated with both estrogen receptor-positive breast cancer and SES.
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Affiliation(s)
- Julie R Palmer
- Slone Epidemiology Center at Boston University, 1010 Commonwealth Avenue, Boston, MA 02215, USA.
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Chae YK, Neagu S, Kim J, Smyrlis A, Gooptu M, Tester W. Association between common allergic symptoms and cancer in the NHANES III female cohort. PLoS One 2012; 7:e42896. [PMID: 23028435 PMCID: PMC3445609 DOI: 10.1371/journal.pone.0042896] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Accepted: 07/13/2012] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Previous epidemiological studies have investigated the association between allergic symptoms and cancer occurrence. However, the role of allergy in cancer has been elusive, especially for the female population. METHODS We examined the relationship between cancer prevalence and common allergic symptoms of rhinoconjunctivitis (RC) and wheezing (WZ) among NHANES III female participants. RESULTS Among 4600 people, 36.3% (n = 1669) did not have any allergic symptoms (NO), while 47.6% (n = 2188) reported RC, and 16.2% (n = 743), WZ. The proportion of cancer among NO groups was 5.43% (91/1669), among RC group, 7.63% (167/2188), and among WZ group, 11.23% (83/743) (RC group- OR 1.44 with 95% CI 1.00-2.08; p = 0.05 while for WZ group- OR 2.20 with 95%CI 1.27-3.80; p = 0.01). After adjusting for all the possible confounding variables including age, smoking, or COPD, having symptoms of RC (AOR 1.49 with 95%CI 1.12-2.36; p = 0.01) or WC (AOR 2.08 with 95%CI 1.11-3.89; p = 0.02) demonstrated consistent strong association with cancer. Among nonsmokers (n = 2505, 54.5%) only symptoms of RC showed association with cancer (AOR 1.51 with 95%CI 1.00-2.28; p = 0.05). Among former or current smokers (n = 2094, 45.5%), only symptoms of WZ demonstrated association with cancer (AOR 2.38 with 95%CI 1.16-4.87; p = 0.02). Among different types of cancers, odds of having breast cancer among participants with symptoms of RC or WZ were approximately twice the odds of having breast cancer among participants without any of these symptoms. AOR for RC group was 1.89 with 95%CI 1.04-3.42 and p = 0.04 while AOR for WC group was 2.08 with 95%CI 0.90-4.78 and p = 0.08. CONCLUSIONS In summary, we found associations between common allergic symptoms like rhinitis/conjunctivitis and wheezing and prevalence of cancer, specifically between rhinitis/conjunctivitis and breast cancer that were not found in previous studies. Larger prospective studies are required to validate our findings.
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Affiliation(s)
- Young Kwang Chae
- Division of Cancer Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Stefan Neagu
- Department of Medicine, Christiana Healthcare System, Newark, Delaware, United States of America
| | - Jongoh Kim
- Department of Medicine, Baylor College of Medicine, Houston, Texas, United States of America
| | - Athanasios Smyrlis
- Department of Medicine, Albert Einstein Medical Center, Philadelphia, Pennsylvania, United States of America
| | - Mahasweta Gooptu
- Department of Medicine, Albert Einstein Medical Center, Philadelphia, Pennsylvania, United States of America
| | - William Tester
- Department of Medicine, Albert Einstein Medical Center, Philadelphia, Pennsylvania, United States of America
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Association between drinking water uranium content and cancer risk in Bavaria, Germany. Int Arch Occup Environ Health 2012; 86:767-76. [PMID: 22949009 DOI: 10.1007/s00420-012-0806-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Accepted: 07/26/2012] [Indexed: 10/27/2022]
Abstract
OBJECTIVE To evaluate the possible association between uranium (U) content in public drinking water on the one hand and the risk of cancer of the colorectum, lung, female breast, prostate, kidney, and urinary bladder, total cancer, and leukemia on the other hand in Bavaria, an ecologic study on the level of municipalities was performed. METHODS Cancer incidence data for the years 2002-2008 were obtained from the population-based cancer registry Bavaria according to sex. Current U content data of public drinking water on the level of municipalities were obtained from a publicly available source. The possible association between drinking water U content and cancer risk adjusted for average socio-economic status was evaluated using Poisson regression. RESULTS Drinking water U content was below 20 μg/L in 458 out of 461 included municipalities. We found a significantly increased risk of leukemia in men in the intermediate (U level, 1.00-4.99 μg/L; relative risk [RR], 1.14) and in the highest U exposure category (U level, ≥5 μg/L; RR, 1.28). Moreover, in women, a significantly elevated risk was identified with respect to kidney cancer in the highest exposure category (RR, 1.16) and with respect to lung cancer in the intermediate exposure category (RR, 1.12). CONCLUSION The slightly increased risk of leukemia in men, kidney cancer in women, and lung cancer in women may require further investigation. If an increased cancer risk is confirmed, preventive measures (e.g., introduction of U filters in public water systems) may be considered.
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Abstract
BACKGROUND Although it has been reported that low socioeconomic position (SEP) is associated with lung cancer, the extent to which this reflects SEP differences in cigarette smoking is unclear. We investigated how various modeling approaches for smoking might influence this observed association. METHODS We used data from a case-control study conducted in Montreal, Canada (1996-2002), comprising 1203 subjects with incident lung cancer and 1513 population controls. SEP was measured by census-based and self-reported income, residential value, education level, and occupational class. Odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using logistic regression, and Akaike's Information Criterion (AIC) was used to compare model fit. RESULTS Associations were observed between SEP indicators and lung cancer, but gradually disappeared with more comprehensive adjustment for smoking. For comparisons of the highest to lowest categories of census-based income, the OR for lung cancer was 0.58 (95% CI = 0.32-1.05) when adjusting only for smoking status (never, former, current), but 0.97 (0.51-1.86) when adjusting for smoking status, cigarette-years, and time since cessation. For comparisons of highest to lowest levels of education, the ORs for lung cancer were 0.50 (0.38-0.65) and 0.76 (0.57-1.02), when making the least and most comprehensive adjustments for smoking, respectively. Similarly, comparing highly skilled with unskilled manual workers, the ORs were 0.78 (0.54-1.12) and 1.00 (0.68-1.47), respectively. With thorough smoking adjustment, associations between SEP indicators and lung cancer virtually disappeared, and SEP did not improve model fit. CONCLUSIONS Previously reported associations of SEP with lung cancer may be attributable to incomplete adjustment for smoking. Our findings underline the importance of adjusting for several dimensions of smoking behavior to make correct inferences.
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Regional deprivation in Bavaria, Germany: linking a new deprivation score with registry data for lung and colorectal cancer. Int J Public Health 2012; 57:827-35. [DOI: 10.1007/s00038-012-0342-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Revised: 12/08/2011] [Accepted: 01/19/2012] [Indexed: 11/26/2022] Open
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