The presence of NAFLD influences the transition of metabolically healthy to metabolically unhealthy obesity and the ten-year cardiovascular disease risk: a population-based cohort study

BackgroundAlthough hypothyroidism is associated with various comorbidities, its relationship with increased all-cause mortality remains controversial. The aim of this nationwide retrospective cohort study was to investigate whether hypothyroid patients treated with levothyroxine had increased mortality compared to controls.MethodsHypothyroid subjects were identified through the Korean National Health Insurance Service Claims database between 2008 and 2017. Hypothyroidism in this study was defined as overt hypothyroidism treated with long-term prescription of levothyroxine (>6 months). After 1:3 age-, sex- and index year-matching, 501,882 patients with newly diagnosed hypothyroidism and 1,505,646 controls without hypothyroidism were included.ResultsDuring a mean follow-up of 6 years, 25,954 (5.2%) hypothyroid patients and 59,105 (3.9%) controls died. Hypothyroidism was significantly associated with increased all-cause mortality (adjusted hazard ratio [HR], 1.14; 95% confidence interval [CI] 1.12–1.16) even with levothyroxine treatment. When stratified by age, sex, and cardiovascular disease risk, independent associations between hypothyroidism and mortality remained significant in all subgroups. The risk of mortality was higher in the < 65 age group (HR: 1.25, 95% CI: 1.22–1.29), men (HR: 1.28, 95% CI: 1.25–1.31), and the high cardiovascular disease risk group (HR: 1.31, 95% CI: 1.29–1.34). The mortality rate of hypothyroid patients was highest within 1 year of treatment and decreased with time.ConclusionThis nationwide, population-based cohort study showed that all-cause mortality was significantly higher in levothyroxine-treated hypothyroid patients than in non-hypothyroid controls. This association remained significant regardless of age, sex, and cardiovascular disease risk.

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Association between metabolically healthy obesity/overweight and cardiovascular disease risk: A representative cohort study in Taiwan

PLoS ONE ◽

10.1371/journal.pone.0246378 ◽

2021 ◽

Vol 16 (2) ◽

pp. e0246378

Author(s):

Tzu-Lin Yeh ◽

Hsin-Yin Hsu ◽

Ming-Chieh Tsai ◽

Le-Yin Hsu ◽

Lee-Ching Hwang ◽

...

Keyword(s):

Cardiovascular Disease ◽

Cohort Study ◽

Cox Regression ◽

Disease Risk ◽

Cardiovascular Disease Risk ◽

Normal Weight ◽

Metabolically Healthy Obesity ◽

Cox Regression Analysis ◽

The Metabolic Syndrome ◽

Metabolically Healthy

Objectives To investigate the relationship between metabolically healthy obesity and cardiovascular disease risk in Taiwanese individuals. Methods Taiwanese individuals were recruited from a nationwide, representative community-based prospective cohort study and classified according to body mass index as follows: normal weight (18.5–23.9 kilogram (kg)/meter(m)2) and obesity/overweight (≥24 kg/m2). Participants without diabetes, hypertension, and hyperlipidemia and who did not meet the metabolic syndrome without waist circumference criteria were considered metabolically healthy. The study end points were cardiovascular disease morbidity and mortality. Multivariable adjusted hazard ratios and 95% confidence intervals were obtained from a Cox regression analysis. Results Among 5 358 subjects (mean [standard deviation] age, 44.5 [15.3] years; women, 48.2%), 1 479 were metabolically healthy with normal weight and 491 were metabolically healthy with obesity. The prevalence of metabolically healthy obesity/overweight was 8.6% in the Taiwanese general population, which included individuals who were >20 years old, not pregnant, and did not have CVD (n = 5,719). In the median follow-up period of 13.7 years, 439 cardiovascular disease events occurred overall and 24 in the metabolically healthy obesity group. Compared with the reference group, the metabolically healthy obesity group had a significantly higher cardiovascular disease risk (adjusted hazard ratio: 1.74, 95% confidence interval: 1.02, 2.99). Conclusions Individuals with metabolically healthy obesity have a higher risk of cardiovascular disease and require aggressive body weight control for cardiovascular disease control.

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Cohort study on the effects of depression on atherosclerotic cardiovascular disease risk in Korea

BMJ Open ◽

10.1136/bmjopen-2018-026913 ◽

2019 ◽

Vol 9 (6) ◽

pp. e026913 ◽

Cited By ~ 2

Author(s):

Yon Ho Jee ◽

Hyoungyoon Chang ◽

Keum Ji Jung ◽

Sun Ha Jee

Keyword(s):

Cardiovascular Disease ◽

Cohort Study ◽

Disease Risk ◽

Cardiovascular Disease Risk ◽

Population Based ◽

Western World ◽

Atherosclerotic Cardiovascular Disease ◽

Cvd Risk ◽

National Health Insurance System ◽

Increased Risk

ObjectivesDepression has been reported to be a risk factor of cardiovascular disease in the western world, but the association has not yet been studied among Asian populations. The aim of this study was to investigate whether depression increases the risk of developing atherosclerotic cardiovascular disease (ASCVD) in a large Korean cohort study.DesignPopulation based cohort study.SettingDatabase of National Health Insurance System, Republic of Korea.Participants481 355 Koreans (260 695 men and 220 660 women) aged 40–80 years who had a biennial health check-up between 2002 and 2005.Main outcome measureThe main outcome in this study was the first ASCVD event (hospital admission or death).ResultsDepression increased the risk of developing ASCVD by 41% for men and 48% for women. In men, 3–4 outpatient visits for depression increased the risk of angina pectoris by 2.12 times (95% CI 1.55 to 2.90) and acute myocardial infarction by 2.29 times (95% CI 1.33 to 3.95). Depression was also associated with stroke in men (HR 1.29, 95% CI 1.19 to 1.39) and in women (HR 1.37, 95% CI 1.29 to 1.46). However, no increased risk of ASCVD was found for men who received 10 or more depressive treatments, compared with those without any outpatient visit for depression.ConclusionsIn this cohort, depressed people were at increased risk of ASCVD incidence. Therefore, individuals with depression may need routine monitoring of heart health that may prevent their future CVD risk.

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