scholarly journals Association between multiple sclerosis, cancer risk, and immunosuppressant treatment: a cohort study

BMC Neurology ◽  
2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Paolo Ragonese ◽  
Paolo Aridon ◽  
Giulia Vazzoler ◽  
Maria Antonietta Mazzola ◽  
Vincenzina Lo Re ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Cohort Study ◽  
Cancer Risk ◽  
Immunosuppressant Treatment

Increased breast cancer risk for patients with multiple sclerosis: a nationwide population-based cohort study

2013 ◽  
Vol 21 (2) ◽  
pp. 238-244 ◽  
Author(s):  
L.-M. Sun ◽  
C.-L. Lin ◽  
C.-J. Chung ◽  
J.-A. Liang ◽  
F.-C. Sung ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Multiple Sclerosis ◽  
Cohort Study ◽  
Breast Cancer Risk ◽  
Cancer Risk ◽  
Population Based

Cancer incidence and mortality rates in multiple sclerosis: A matched cohort study

Neurology ◽  
2020 ◽  
pp. 10.1212/WNL.0000000000011219
Author(s):  
Ruth Ann Marrie ◽  
Colleen Maxwell ◽  
Alyson Mahar ◽  
Okechukwu Ekuma ◽  
Chad McClintock ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Bladder Cancer ◽  
Cohort Study ◽  
Cancer Risk ◽  
Cancer Incidence ◽  
Mortality Rates ◽  
Population Based ◽  
Colorectal Cancers ◽  
Matched Cohort ◽  
Incidence And Mortality

Objective:To determine whether cancer risk differs in people with and without multiple sclerosis (MS), we compared incidence rates and cancer-specific mortality rates in MS and matched cohorts using population-based data sources.Methods:We conducted a retrospective matched cohort study using population-based administrative data from Manitoba and Ontario, Canada. We applied a validated case definition to identify MS cases, then selected 5 controls without MS matched on birth year, sex and region. We linked these cohorts to cancer registries, and estimated incidence of breast, colorectal and 13 other cancers. For breast and colorectal cancers, we constructed Cox models adjusting for age at the index date, area-level socioeconomic status, region, birth cohort year and comorbidity. We pooled findings across provinces using meta-analysis.Results:We included 53,984 MS cases and 266,920 controls. Multivariable analyses showed no difference in breast cancer risk (pooled hazard ratio [HR] 0.92 [95%CI: 0.78-1.09]) or colorectal cancer risk (pooled HR 0.83 [95%CI: 0.64-1.07]) between the cohorts. Mortality rates for breast and colorectal did not differ between cohorts. Bladder cancer incidence and mortality rates were higher among the MS cohort. Although the incidence of prostate, uterine and central nervous system cancers differed between the MS and matched cohorts, mortality rates did not.Conclusion:The incidence of breast and colorectal cancers does not differ between persons with and without MS; however, the incidence of bladder cancer is increased. Reported differences in the incidence of some cancers in the MS population may reflect ascertainment differences rather than true differences.

Cynical distrust increases breast cancer risk: Evidence from a prospective cohort study

2002 ◽  
Author(s):  
A. R. Aro ◽  
H. J. de Koning ◽  
K. Vehkalahti ◽  
P. Absetz ◽  
M. Schreck ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cohort Study ◽  
Breast Cancer Risk ◽  
Cancer Risk ◽  
Prospective Cohort Study ◽  
Prospective Cohort

scholarly journals Young adult cancer risk behaviours originate in adolescence: a longitudinal analysis using ALSPAC, a UK birth cohort study

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Caroline Wright ◽  
Jon Heron ◽  
Ruth Kipping ◽  
Matthew Hickman ◽  
Rona Campbell ◽  
...  
Keyword(s):  
Cohort Study ◽  
Waist Circumference ◽  
Cancer Risk ◽  
Tobacco Smoking ◽  
Early Adulthood ◽  
Birth Cohort Study ◽  
Risk Behaviours ◽  
Harmful Drinking ◽  
High Waist Circumference ◽  
Adolescent Cancer

Abstract Background An estimated 40% of cancer cases in the UK in 2015 were attributable to cancer risk behaviours. Tobacco smoking, alcohol consumption, obesity, and unprotected sexual intercourse are known causes of cancer and there is strong evidence that physical inactivity is associated with cancer. These cancer risk behaviours co-occur however little is known about how they pattern longitudinally across adolescence and early adulthood. Using data from ALSPAC, a prospective population-based UK birth cohort study, we explored patterns of adolescent cancer risk behaviours and their associations with cancer risk behaviours in early adulthood. Methods Six thousand three hundred fifty-one people (46.0% of ALSPAC participants) provided data on all cancer risk behaviours at one time during adolescence, 1951 provided data on all cancer risk behaviours at all time points. Our exposure measure was quartiles of a continuous score summarising cumulative exposure to cancer risk behaviours and longitudinal latent classes summarising distinct categories of adolescents exhibiting similar patterns of behaviours, between age 11 and 18 years. Using both exposure measures, odds of harmful drinking (Alcohol Use Disorders Identification Test-C ≥ 8),daily tobacco smoking, nicotine dependence (Fagerström test ≥4), obesity (BMI ≥30), high waist circumference (females: ≥80 cm and males: ≥94 cm, and high waist-hip ratio (females: ≥0.85 and males: ≥1.00) at age 24 were estimated using logistic regression analysis. Results We found distinct groups of adolescents characterised by consistently high and consistently low engagement in cancer risk behaviours. After adjustment, adolescents in the top quartile had greater odds of all outcomes in early adulthood: nicotine dependency (odds ratio, OR = 5.37, 95% confidence interval, CI = 3.64–7.93); daily smoking (OR = 5.10, 95% CI =3.19–8.17); obesity (OR = 4.84, 95% CI = 3.33–7.03); high waist circumference (OR = 2.48, 95% CI = 1.94–3.16); harmful drinking (OR = 2.04, 95% CI = 1.57–2.65); and high waist-hip ratio (OR = 1.88, 95% CI = 1.30–2.71), compared to the bottom quartile. In latent class analysis, adolescents characterised by consistently high-risk behaviours throughout adolescence were at higher risk of all cancer risk behaviours at age 24, except harmful drinking. Conclusions Exposure to adolescent cancer risk behaviours greatly increased the odds of cancer risk behaviours in early adulthood. Interventions to reduce these behaviours should target multiple rather than single risk behaviours and should focus on adolescence.

scholarly journals Risk of Cancer Following the Use of N-Nitrosodimethylamine (NDMA) Contaminated Ranitidine Products: A Nationwide Cohort Study in South Korea

2021 ◽  
Vol 10 (1) ◽  
pp. 153
Author(s):  
Hong Jin Yoon ◽  
Jie-Hyun Kim ◽  
Gi Hyeon Seo ◽  
Hyojin Park
Keyword(s):  
Cohort Study ◽  
Cancer Risk ◽  
South Korea ◽  
Primary Study ◽  
Study Cohort ◽  
Matched Cohort ◽  
Cancer Outcomes ◽  
H2 Receptor Antagonist ◽  
Carcinogenic Agent ◽  
Risk Of Cancer

N-nitrosodimethylamine (NDMA), a known carcinogenic agent, was recently detected in some products of ranitidine. Several studies have investigated the detectability of NDMA, in drugs and their risks. However, only a few epidemiological studies have evaluated cancer risk from the use of such individual drugs. This study investigates the risk of cancer in ranitidine users. We conducted an observational population-based cohort study using the Health Insurance Review and Assessment databases, which contain information about the use of medicines in South Korea. The primary study cohort consisted of ranitidine users (n = 88,416). For controls, we enrolled users of famotidine, another H2-receptor antagonist in which no NDMA has been detected. A 4:1 matched cohort was constructed to compare cancer outcomes of the two groups. Our matched cohort comprised of 40,488 ranitidine users and 10,122 famotidine users. There was no statistical difference in the overall cancer risk between the ranitidine and famotidine groups (7.45% vs. 7.56%, HR 0.99, 95% CI 0.91–1.07, p = 0.716). Additionally, no significant differences were observed in the analysis of 11 single cancer outcomes. We found no evidence that exposure to NDMA through ranitidine increases the risk of cancer.

scholarly journals Traditional and Novel Adiposity Indicators and Pancreatic Cancer Risk: Findings from the UK Women’s Cohort Study

Cancers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1036
Author(s):  
Sangeetha Shyam ◽  
Darren Greenwood ◽  
Chun-Wai Mai ◽  
Seok Shin Tan ◽  
Barakatun Nisak Mohd Yusof ◽  
...  
Keyword(s):  
Pancreatic Cancer ◽  
Cohort Study ◽  
Cancer Risk ◽  
Reverse Causality ◽  
Hip Circumference ◽  
Primary Analysis ◽  
Pancreatic Cancer Risk ◽  
Obesity Indices ◽  
The Uk

(1) Background: We studied the association of both conventional (BMI, waist and hip circumference and waist–hip ratio) and novel (UK clothing sizes) obesity indices with pancreatic cancer risk in the UK women’s cohort study (UKWCS). (2) Methods: The UKWCS recruited 35,792 women from England, Wales and Scotland from 1995 to 1998. Cancer diagnosis and death information were obtained from the National Health Service (NHS) Central Register. Cox’s proportional hazards regression was used to evaluate the association between baseline obesity indicators and pancreatic cancer risk. (3) Results: This analysis included 35,364 participants with a median follow-up of 19.3 years. During the 654,566 person-years follow up, there were 136 incident pancreatic cancer cases. After adjustments for age, smoking, education and physical activity, each centimetre increase in hip circumference (HR: 1.03, 95% CI: 1.01–1.05, p = 0.009) and each size increase in skirt size (HR: 1.12, 95% CI: 1.02–1.23, p = 0.041) at baseline increased pancreatic cancer risk. Baseline BMI became a significant predictor of pancreatic cancer risk (HR: 1.04, 95% CI: 1.00–1.08, p = 0.050) when latent pancreatic cancer cases were removed. Only baseline hip circumference was associated with pancreatic cancer risk (HR: 1.03, 95% CI: 1.00–1.05, p = 0.017) when participants with diabetes at baseline were excluded to control for reverse causality. (4) Conclusion: Hip circumference and skirt size were significant predictors of pancreatic cancer risk in the primary analysis. Thus, hip circumference is useful to assess body shape relationships. Additionally, standard skirt sizes offer an economical and objective alternative to conventional obesity indices for evaluating pancreatic cancer risk in women.

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