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Association of Major Depressive Episodes With Stroke Risk in a Prospective Study of 0.5 Million Chinese Adults.

ABSTRACT: Although the relationship between depression and stroke risk has been investigated, findings in previous reports were conflicting. The aim of this study was to prospectively examine the effect of major depressive episodes (MDE) on stroke incidence and further assess the potential dose-response relationship between number of depression symptoms and subsequent stroke risk in Chinese population.A total of 199?294 men and 288?083 women aged 30 to 79 years without a history of stroke, heart disease, and cancer in the China Kadoorie Biobank cohort were followed from 2004 to 2013. A World Health Organization Composite International Diagnostic Interview-Short Form was used to access MDE according to Diagnostic and Statistical Manual of Mental Disorders-IV criteria. Stroke events were ascertained through death certificates, medical records, and health insurance data.Past year MDE was marginally associated with a 15% increased risk of stroke (adjusted hazard ratio, 1.15; 95% confidence interval, 0.99-1.33) in the fully adjusted model, and the association was steeper and statistically significant in individuals aged <50 years, smokers, drinkers, those with higher education degree, body mass index <24.0 kg/m(2), and no history of diabetes mellitus. Moreover, there was a positive dose-response relationship between the number of depression symptoms and increased stroke risk (Ptrend=0.011). In addition, smoking status significantly interacted with MDE on stroke onset (P for multiplicative interaction=0.025).Findings from this large prospective study suggest that the presence of MDE is a risk factor for stroke, especially in smokers.

SUBMITTER: Sun J

PROVIDER: S-EPMC4998954 | biostudies-other | 2016 Sep

REPOSITORIES: biostudies-other

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Association of Major Depressive Episodes With Stroke Risk in a Prospective Study of 0.5 Million Chinese Adults.

Sun Jie J Ma Hongxia H Yu Canqing C Lv Jun J Guo Yu Y Bian Zheng Z Yang Ling L Chen Yiping Y Shen Hongbing H Chen Zhengming Z Hu Zhibin Z Li Liming L

Stroke 20160728 9

<h4>Background and purpose</h4>Although the relationship between depression and stroke risk has been investigated, findings in previous reports were conflicting. The aim of this study was to prospectively examine the effect of major depressive episodes (MDE) on stroke incidence and further assess the potential dose-response relationship between number of depression symptoms and subsequent stroke risk in Chinese population.<h4>Methods</h4>A total of 199 294 men and 288 083 women aged 30 to 79 yea ...[more]

PMID: 27470992

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Project description:BackgroundLittle prospective evidence exists about risk factors and prognosis of acute pancreatitis in China. We examined the associations of certain metabolic and lifestyle factors with risk of acute pancreatitis in Chinese adults.Methods and findingsThe prospective China Kadoorie Biobank (CKB) recruited 512,891 adults aged 30 to 79 years from 5 urban and 5 rural areas between 25 June 2004 and 15 July 2008. During 9.2 years of follow-up (to 1 January 2015), 1,079 cases of acute pancreatitis were recorded. Cox regression was used to estimate adjusted hazard ratios (HRs) for acute pancreatitis associated with various metabolic and lifestyle factors among all or male (for smoking and alcohol drinking) participants. Overall, the mean waist circumference (WC) was 82.1 cm (SD 9.8) cm in men and 79.0 cm (SD 9.5) cm in women, 6% had diabetes, and 6% had gallbladder disease at baseline. WC was positively associated with risk of acute pancreatitis, with an adjusted HR of 1.35 (95% CI 1.27-1.43; p < 0.001) per 1-SD-higher WC. Individuals with diabetes or gallbladder disease had HRs of 1.34 (1.07-1.69; p = 0.01) and 2.42 (2.03-2.88; p < 0.001), respectively. Physical activity was inversely associated with risk of acute pancreatitis, with each 4 metabolic equivalent of task (MET) hours per day (MET-h/day) higher physical activity associated with an adjusted HR of 0.95 (0.91-0.99; p = 0.03). Compared with those without any metabolic risk factors (i.e., obesity, diabetes, gallbladder disease, and physical inactivity), the HRs of acute pancreatitis for those with 1, 2, or ?3 risk factors were 1.61 (1.47-1.76), 2.36 (2.01-2.78), and 3.41 (2.46-4.72), respectively (p < 0.001). Among men, heavy alcohol drinkers (?420 g/week) had an HR of 1.52 (1.11-2.09; p = 0.04, compared with abstainers), and current regular smokers had an HR of 1.45 (1.28-1.64; p = 0.02, compared with never smokers). Following a diagnosis of acute pancreatitis, there were higher risks of pancreatic cancer (HR = 8.26 [3.42-19.98]; p < 0.001; 13 pancreatic cancer cases) and death (1.53 [1.17-2.01]; p = 0.002; 89 deaths). Other diseases of the pancreas had similar risk factor profiles and prognosis to acute pancreatitis. The main study limitations are ascertainment of pancreatitis using hospital records and residual confounding.ConclusionsIn this relatively lean Chinese population, several modifiable metabolic and lifestyle factors were associated with higher risks of acute pancreatitis, and individuals with acute pancreatitis had higher risks of pancreatic cancer and death.

Dataset Information

Association of Major Depressive Episodes With Stroke Risk in a Prospective Study of 0.5 Million Chinese Adults.

Publications

Association of Major Depressive Episodes With Stroke Risk in a Prospective Study of 0.5 Million Chinese Adults.

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