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Body weight variability and cancer incidence in men aged 40 years and older-Korean National Insurance Service Cohort.

ABSTRACT: Repeated weight fluctuation has been proposed as a potential risk factor for increasing morbidity and mortality including cancer. We aimed to investigate the association between body weight variability (BWV) and all cancer and site-specific cancer incidence and the impact of smoking on these associations. A total of 1,759,848 cancer-free male subjects who had their weight measured at least 5 times from the National Health Insurance Service-Health Screening Cohort from 2002 to 2011 were included and followed up until 2015. BWV was defined as the average absolute difference between successive values (ASV). The risk of cancer and site-specific cancer from BWV was identified using Cox proportional hazards regression analysis using hazard ratios (HRs) and 95% confidence intervals (CIs) adjusted for potential confounders including weight, and stratified analysis was also conducted according to smoking status. During the 7,015,413 person-years of follow-up, 11,494 patients (0.65%) developed new-onset cancers. BWV was associated with a higher risk of all cancers after adjustment for confounders. The highest BWV quintile group compared to the lowest had greater risks of all cancers and site-specific cancers including lung, liver, and prostate cancer (HR 1.22, 95% CI 1.15-1.30; HR 1.22, 95% CI 1.07-1.39; HR 1.46, 95% CI 1.19-1.81; HR 1.36, 95% CI 1.15-1.62, in all cancers, lung, liver and prostate cancer, respectively). Due to small number of cancer occurrence, the risk of kidney cancer was increased, but statistically insignificant (HR 1.38, 95% CI 0.91-2.10). Similar results were observed in noncurrent smokers. However, in current smokers, the risks of all cancers and only prostate cancer were significantly increased in the highest BWV quintile group (HR 1.19, 95% CI 1.09-1.31; HR 1.51, 95% CI 1.08-2.11). The risk of kidney cancer also increased in this group, although the finding was not statistically significant (HR 1.77, 95% CI 0.87-3.63) This study suggested BWV is an independent risk factor for cancer in men, especially in lung, liver, and prostate cancer, but evidence was weaker in kidney cancer. This association remained significant only in prostate cancer in current smokers.

SUBMITTER: Cho YJ

PROVIDER: S-EPMC8190310 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:BackgroundStudies have documented a temporal increase in incidence for several cancers in US young adults aged 25 to 39-years, including noncardia gastric cancer, colorectal cancer, and distant-stage breast cancer. To further characterize trends in young adults, we assessed age-specific and stage-specific incidence trends from 1975 to 2015, overall (all malignant cancers combined), and for 18 and 16 cancer sites in women and men, respectively.MethodsWe used US population-based data from the Surveillance, Epidemiology, and End Results Program to obtain overall and site-specific cancer incidence rates by sex and age group. We individually analyzed cancer sites with an incidence rate of at least 5 per 100 000 in 2015, accounting for greater than 90% of all cancer diagnoses. We estimated annual percent changes (APCs) using segment log-linear regression performed with joinpoint software; multiple permutation testing was used to identify inflection points. We forecasted overall cancer incidence through 2030 using age-period-cohort regression models.ResultsBased on trends occurring after the most recent joinpoint inflection point, overall cancer incidence increased by 1.15% (95% CI = 1.01% to 1.28%) per year in 25- to 39-year-old women and by 0.46% (95% CI = 0.17% to 0.75%) per year in 25- to 39-year-old men; APCs were of much lower magnitude in the older age groups (eg, 70- to 84-year-old women APC = -0.31%, 95% CI = -0.42% to -0.20%). We forecasted that overall cancer incidence will increase by an additional 11% by 2030 in 25- to 39-year-old women, and by an additional 12% in 25- to 39-year-old men. Ten of the 18 cancers assessed in 25- to 39-year-old women and 7 of the 16 cancers in 25- to 39-year-old men have been statistically significantly increasing over time. We found that the increase in incidence for young adults is stage specific for some cancers (eg, only nonlocalized breast cancer has increased in 25- to 39-year-old women).ConclusionCancer incidence is increasing in young adults, particularly in young women.

Project description:OBJECTIVE:To clarify how race is associated with adverse maternal outcomes and risk for women aged 40 years or older. METHODS:This retrospective cohort study used the Nationwide Inpatient Sample for the years 1998-2014. Women aged 40-54 years were included. Race and ethnicity were categorized as non-Hispanic white, non-Hispanic black, Hispanic, Asian or Pacific Islander, Native American, other, and unknown. Temporal trends in severe maternal morbidity and overall comorbid risk by race in women aged 40 years or older were evaluated as were common pregnancy complications including preeclampsia, gestational diabetes, and cesarean delivery. Adjusted models were created to assess factors associated with severe morbidity. RESULTS:A total of 1,724,694 deliveries were included in this analysis. Severe maternal morbidity increased over the study period from 1.6% in 1998-2000 to 3.0% from 2013 to 2014. Black women had the highest rates of severe morbidity at both the beginning (2.4% in 1998-2000) and the end (4.9% in 2013-2014) of the study period. During this same period, comorbid risk based on medical conditions and other factors increased overall and individually by race. Black women also experienced the absolute largest increase from 1998-2003 to 2010-2014 in risk for acute renal failure, disseminated intravascular coagulation, transfusion, and hysterectomy. Pregnancy complications including preeclampsia, cesarean delivery, and gestational diabetes were more common at the end compared with the beginning of the study for black, white, and Hispanic women. The adjusted risk ratio for overall severe morbidity for black compared with white race was 1.81 (95% CI 1.76-1.87). Black women had a substantially higher risk of death than white women (risk ratio 4.71, 95% CI 3.36-6.61), and Hispanic women had more than twice the risk of death (risk ratio 2.13, 95% CI 1.48-3.07) as white women. CONCLUSION:Although black women older than 40 years were at increased risk for adverse outcomes and severe morbidity, this differential was of smaller magnitude than reported mortality risk.

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Body weight variability and cancer incidence in men aged 40 years and older-Korean National Insurance Service Cohort.

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