Influence of Changes in Obesity Indicators on the Risk of Hypertension: A Cohort Study in Southern China

2021 ◽  
pp. 1-9
Author(s):  
Xin Peng ◽  
JunXuan Huang ◽  
Yan Liu ◽  
MengJiao Cheng ◽  
Bo Li ◽  
...  
Keyword(s):  
Cohort Study ◽  
Southern China ◽  
Age Groups ◽  
Community Dwelling ◽  
The Body ◽  
Proportional Hazard ◽  
Incident Hypertension ◽  
Cox Proportional Hazard ◽  
Hazard Ratios

<b><i>Objectives:</i></b> The objective of this study was to demonstrate the association between changes in different obesity indicators and the risk of incident hypertension by the age-group among community-dwelling residents in southern China. <b><i>Methods:</i></b> A total of 6,959 non-hypertensive participants aged ≥18 years old were enrolled in this cohort study and completed questionnaire interviews and anthropometric measurements at baseline (2010) and follow-up (2017). A time-dependent covariate Cox proportional hazard model considered the changes in obesity indicators during the follow-up period and calculated the hazard ratios (HRs) to analyze the risk of incident hypertension according to different obesity indicators. <b><i>Results:</i></b> During a mean follow-up of 7.1 years, 1,904 participants were newly diagnosed with hypertension. The body mass index (BMI), waist circumference (WC), waist-to-hip ratio (WHR), and waist-to-height ratio (WHtR) were significantly positively associated with an increased future risk of incident hypertension, and BMI was the best predictive indicator of hypertension (obesity in men: HR = 2.65, 95% confidence interval (CI) = 2.20–3.20; obesity in women: HR = 2.80, 95% CI = 2.27–3.45). Compared with the middle-aged and older group, the risk of incident hypertension was highest in the younger group which had the highest baseline obesity indicators. <b><i>Conclusions:</i></b> Changes in obesity indicators were significantly associated with the risk of incident hypertension in all age-groups, and the risk of future incident hypertension increased with the increase in baseline obesity indicators.

Abstract P388: Which Obesity-related Indicator is Better for Predicting Incident Hypertension? Results from the population-based cohort study of Japan

Circulation ◽  
2014 ◽  
Vol 129 (suppl_1) ◽  
Author(s):  
Michikazu Nakai ◽  
Makoto Watanabe ◽  
Kunihiro Nishimura ◽  
Misa Takegami ◽  
Yoshihiro Kokubo ◽  
...  
Keyword(s):  
Cohort Study ◽  
Population Based ◽  
Proportional Hazard ◽  
Japanese Men ◽  
Men And Women ◽  
Established Risk Factor ◽  
Cox Proportional Hazard ◽  
C Statistic ◽  
Hazard Ratios

Objective: Obesity is an established risk factor for hypertension (HT), but it is still controversial which obesity-related indicator is superior in predictability. This study compared the predictability among three indicators, body mass index (BMI), waist circumference (WC) and waist-to-height ratio (WHtR), in the population-based prospective cohort study of Japan, the Suita study. Methods: Participants who had no HT at baseline (1,591 men and 1,973 women) aged 30-84 years were included in this study. The Cox proportional hazard model was used to estimate hazard ratios (HRs) of each indicator for incident HT with the adjustment for age, cigarette smoking and alcohol drinking. Harrell’s C statistics were also estimated for comparison of indicators’ accuracy. Results: During median follow-up of 7.2 years, 1,325 participants (640 men and 685 women) developed HT. HR (95% CI) of BMI, WC and WHtR for incident HT corresponding to a 1 SD increase was 1.25 (1.15-1.35), 1.21 (1.12-1.31) and 1.23 (1.14-1.34) in men while 1.32 (1.22-1.42), 1.27 (1.18-1.37) and 1.32 (1.21-1.44) in women, respectively. Also, C-statistic (95% CI) of BMI, WC and WHtR was 0.64 (0.62-0.66), 0.63 (0.61-0.65) and 0.63 (0.61-0.66) in men while 0.69 (0.67-0.71), 0.69 (0.67-0.71) and 0.69 (0.67-0.71) in women, respectively. Using 95% CI of each C-statistics, there were no statistical differences among three indicators in both men and women. Conclusion: In this study, we showed that all three indicators (BMI, WC and WHtR) were estimated similarly to predict the risk of developing HT in both Japanese men and women.

scholarly journals Farming tasks and the development of rheumatoid arthritis in the agricultural health study

2019 ◽  
pp. oemed-2018-105361 ◽  
Author(s):  
Christine G Parks ◽  
Armando Meyer ◽  
Laura E Beane Freeman ◽  
Jonathan Hofmann ◽  
Dale P Sandler
Keyword(s):  
Rheumatoid Arthritis ◽  
Self Report ◽  
Health Study ◽  
Proportional Hazard ◽  
Agricultural Health ◽  
Cox Proportional Hazard ◽  
Hazard Ratios ◽  
Cox Proportional Hazard Models ◽  
Agricultural Health Study

ObjectivesFarming has been associated with rheumatoid arthritis (RA). Some studies have evaluated the effects of pesticides, but other agricultural exposures may also affect immune response.MethodsWe investigated non-pesticide agricultural exposures in relation to RA in licensed pesticide applicators (n=27 175, mostly male farmers) and their spouses (n=22 231) in the Agricultural Health Study (AHS) cohort (1993–1997) who completed at least one follow-up survey through 2015. Incident RA cases (n=229 applicators and 249 spouses) were identified based on self-report confirmed by use of disease-modifying antirheumatic drugs or medical records. Hazard Ratios (HRs) and 95% Confidence Intervals (CIs) were estimated by Cox proportional hazard models adjusting for applicator status, state, smoking, education and specific pesticide use, allowing estimates to vary by median age when hazards assumptions were not met.ResultsOverall, RA was associated with regularly applying chemical fertilisers (HR=1.50; 95% CI 1.11 to 2.02), using non-gasoline solvents (HR=1.40; 95% CI 1.09 to 1.80), and painting (HR=1.26; 95% CI 1.00 to 1.59). In older applicators (>62 years), RA was associated with driving combines (HR=2.46; 95% CI 1.05 to 5.78) and milking cows (HR=2.56; 95% CI 1.01 to 6.53). In younger participants (≤62 years), RA was inversely associated with raising animals as well as crops (HR=0.68; 95% CI 0.51 to 0.89 vs crops only). Associations with specific crops varied by age: some (eg, hay) were inversely associated with RA in younger participants, while others (eg, alfalfa) were associated with RA in older participants.ConclusionThese findings suggest several agricultural tasks and exposures may contribute to development of RA.

scholarly journals HAS FRAILTY SCORE AND FRAILTY LETHALITY CHANGED OVER TIME? HARMONIZATION OF NHANES COHORTS FROM 1999 TO 2016

2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S682-S682
Author(s):  
Joanna M Blodgett ◽  
Kenneth Rockwood ◽  
Olga Theou
Keyword(s):  
Multilevel Models ◽  
Healthcare Access ◽  
Frailty Index ◽  
Age Groups ◽  
Proportional Hazard ◽  
Health And Nutrition ◽  
Cox Proportional Hazard ◽  
Hazard Ratios ◽  
Cox Proportional Hazard Models ◽  
Over Time

Abstract Positive advances in life expectancy, healthcare access and medical technology have been accompanied by an increased prevalence of chronic diseases and substantial population ageing. How this impacts changes in both frailty level and subsequent mortality in recent decades are not well understood. We aimed to investigate how these factors changed over an 18-year period. Nine waves of the National Health and Nutrition Examination Survey (1999-2016) were harmonized to create a 46-item frailty index (FI) using self-reported and laboratory-based health deficits. Individuals aged 20+ were included in analyses (n=44086). Mortality was ascertained in December 2015. Weighted multilevel models estimated the effect of cohort on FI score in 10-year age-stratified groups. Cox proportional hazard models estimated if two or four-year mortality risk of frailty changed across the 1999-2012 cohorts. Mean FI score was 0.11±0.10. In the five older age groups (&gt;40 years), later cohorts had higher frailty levels than did earlier cohorts. For example, in people aged 80+, each subsequent cohort had an estimated 0.007 (95%CI: 0.005, 0.009) higher FI score. However, in those aged 20-29, later cohorts had lower frailty [β=-0.0009 (-0.0013, -0.0005)]. Hazard ratios and cohort-frailty interactions indicated that there was no change in two or four-year lethality of FI score over time (i.e. two-year mortality: HR of 1.069 (1.055, 1.084) in 1999-2000 vs 1.061 (1.044, 1.077) in 2011-2012). Higher frailty levels in the most recent years in middle and older aged adults combined with unchanged frailty lethality suggests that the degree of frailty may continue to increase.

Dietary patterns generated by the Treelet Transform and risk of stroke: a Danish cohort study

2020 ◽  
Vol 24 (1) ◽  
pp. 84-94
Author(s):  
Signe B Frederiksen ◽  
Heidi H Themsen ◽  
Kim Overvad ◽  
Christina C Dahm
Keyword(s):  
Cohort Study ◽  
Dietary Patterns ◽  
Inverse Association ◽  
Proportional Hazard ◽  
Cox Proportional Hazard ◽  
National Patient ◽  
Cox Proportional Hazard Models ◽  
Record Review ◽  
Danish National Patient Register

AbstractObjective:To relate empirically derived dietary patterns identified using the Treelet Transform (TT) to risk of stroke.Design:A prospective cohort study using the Danish Diet, Cancer and Health cohort. Dietary information was obtained in 1993–1997 using a validated semi-quantitative FFQ. Incident stroke diagnoses, obtained from the Danish National Patient Register, were verified by record review. Dietary patterns were generated using TT, and participants were categorised into quintiles based on their adherence to each pattern. Sex-specific Cox proportional hazard models estimated associations between dietary patterns and stroke.Setting:Denmark.Participants:55 061 men and women aged 50–64 years at the time of enrolment.Results:Three dietary patterns explaining 15·4 % of the total variance were identified: a Prudent pattern, a Western pattern and a Wine & Snacks pattern. During a follow-up time of 10 years, 1513 cases occurred. Comparing the highest to lowest quintiles of intake, adherence to a Prudent pattern was inversely associated with stroke (HRmen 0·74, 95 % CI 0·60, 0·91; HRwomen 0·82, 95 % CI 0·62, 1·08), while adherence to a Western pattern was associated with greater risk (HRmen 1·61, 95 % CI 1·23, 2·10; HRwomen 2·01, 95 % CI 1·48, 2·72). No association was found for a Wine & Snacks pattern for women, but a weak inverse association was found for men (HR 0·81, 95 % CI 0·67, 0·99).Conclusions:The results of this study are broadly in line with current recommendations for a healthy diet to prevent stroke.

scholarly journals Metformin use and risk of gastric adenocarcinoma in a Swedish population-based cohort study

2019 ◽  
Vol 121 (10) ◽  
pp. 877-882 ◽  
Author(s):  
Jiaojiao Zheng ◽  
Shao-Hua Xie ◽  
Giola Santoni ◽  
Jesper Lagergren
Keyword(s):  
Cohort Study ◽  
Gastric Adenocarcinoma ◽  
Population Based ◽  
Matched Cohort ◽  
Swedish Population ◽  
Cox Proportional Hazard ◽  
Hazard Ratios ◽  
Cox Proportional Hazard Regression ◽  
Treatment Use

Abstract Background Whether or not the use of metformin decreases the risk of gastric adenocarcinoma is unclear. Methods This was a population-based cohort study in 2005–2015. Associations between metformin use and gastric non-cardia and cardia adenocarcinomas were examined within two cohorts; a diabetes cohort of participants using anti-diabetes medications, and a matched cohort of common-medication users, where metformin non-users were frequency matched (10:1) with metformin users for sex and age. Multivariable Cox proportional hazard regression analyses provided hazard ratios (HR) and 95% confidence intervals (CI), adjusting for sex, age, calendar year, comorbidity, Helicobacter pylori eradication treatment, use of non-steroidal anti-inflammatory drugs or aspirin and use of statins. Results During the follow-up for a median of 5.8 years, 892 (0.1%) participants in the diabetes cohort and 6395 (0.1%) participants in the matched cohort of common-medication users developed gastric adenocarcinoma. Metformin users had no significantly decreased risk of gastric non-cardia adenocarcinoma (diabetes cohort: HR 0.93, 95% CI 0.78–1.12; matched cohort: HR 1.30, 95% CI 1.18–1.42) or cardia adenocarcinoma (diabetes cohort: HR 1.49, 95% CI 1.09–2.02; matched cohort: HR 1.58, 95% CI 1.38–1.81) compared with non-users in both cohorts. Conclusions This cohort study with <10 years of follow-up suggests metformin use may not prevent gastric adenocarcinoma.

OS10.8.A The effectiveness of antiepileptic drug duotherapies in glioma patients: a multicenter observational cohort study

2021 ◽  
Vol 23 (Supplement_2) ◽  
pp. ii14-ii14
Author(s):  
P B van der Meer ◽  
L Dirven ◽  
M Fiocco ◽  
M Vos ◽  
M C M Kouwenhoven ◽  
...  
Keyword(s):  
Cohort Study ◽  
Adverse Effects ◽  
Treatment Failure ◽  
Antiepileptic Drug ◽  
Observational Cohort Study ◽  
Proportional Hazard ◽  
Cox Proportional Hazard ◽  
Cox Proportional Hazard Models ◽  
Observational Cohort

Abstract BACKGROUND About 30% of glioma patients need an add-on antiepileptic drug (AED) due to uncontrolled seizures on AED monotherapy. This study aimed to determine whether levetiracetam combined with valproic acid (LEV+VPA), a commonly prescribed duotherapy, is more effective than other duotherapy combinations including either LEV or VPA in glioma patients. MATERIAL AND METHODS In this multicenter retrospective observational cohort study, treatment failure (i.e. replacement by or addition of a new AED, or withdrawal of an AED) for any reason was the primary outcome. Secondary outcomes included: 1) treatment failure due to uncontrolled seizures; and 2) treatment failure due to adverse effects. Time to treatment failure was defined as the time from the start of AED duotherapy until the time of treatment failure. Multivariable Cox proportional hazard models were estimated to study the association between risk factors and treatment failure. The maximum duration of follow-up was 36 months. RESULTS A total of 1435 patients were treated with first-line monotherapy LEV or VPA, of which 355 patients received AED duotherapy after they had treatment failure due to uncontrolled seizures on monotherapy. LEV+VPA was prescribed in 66% (236/355) and other AED duotherapy combinations including LEV or VPA in 34% (119/355) of patients. Patients using other duotherapy versus LEV+VPA had higher risk of treatment failure for any reason (cause-specific hazard ratio [csHR]=1.50 [95%CI=1.07–2.12], p=0.020), treatment failure due to uncontrolled seizures (csHR=1.73 [95%CI=1.10–2.73], p=0.018). There were no differences in failure due to adverse effects (csHR=0.88 [95%CI=0.47–1.67]), p=0.703) between the two groups. CONCLUSION This observational cohort study suggests that LEV+VPA has better efficacy than other AED combinations. Similar toxicities were experienced in the two groups.

scholarly journals Analysis of Mortality and Morbidity in COVID-19 Patients with Obesity Using Clinical Epidemiological Data from the Korean Center for Disease Control & Prevention

2020 ◽  
Vol 17 (24) ◽  
pp. 9336
Author(s):  
So Young Kim ◽  
Dae-Myoung Yoo ◽  
Chanyang Min ◽  
Jee Hye Wee ◽  
Joo-Hee Kim ◽  
...  
Keyword(s):  
Disease Control ◽  
Epidemiological Data ◽  
The Body ◽  
Proportional Hazard ◽  
Mortality And Morbidity ◽  
Cox Proportional Hazard ◽  
Hazard Ratios ◽  
Control And Prevention ◽  
Relationship Of ◽  
The Relationship

Previous studies have reported the association of obesity with increased morbidity or mortality due to the coronavirus disease 2019 (COVID-19). This study aims to investigate the relationship of obesity, as defined by the body mass index (BMI), with morbidity and mortality due to COVID-19. Data from 5628 confirmed COVID-19 patients were collected by the Centers for Disease Control and Prevention of Korea. The hazard ratios (HRs) for mortality in the BMI groups were analyzed using the Cox proportional hazard model adjusted for covariates. The odds ratios (ORs) of morbidity and diabetes in the BMI groups were analyzed using logistic regression adjusted for the same covariates. Both underweight and obesity were associated with a higher HR for mortality (adjusted HR = 2.28, 95% confidence intervals [95% CI] = 1.23–4.25, p = 0.009 for underweight and adjusted HR = 1.71, 95% CI = 1.10–2.66, p = 0.017 for obese). Obesity was related to higher odds of morbidity (adjusted OR = 1.71, 95% CI = 1.32–2.21, p < 0.001). Underweight and obesity were associated with high mortality and/or morbidity due to COVID-19 in Korea.

scholarly journals P0779THE POPULATION ATTRIBUTABLE FRACTION OF HYPERURICEMIA FOR ALL-CAUSE AND CARDIOVASCULAR MORTALITY: A NATIONWIDE COMMUNITY-BASED STUDY

2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Tomomi Tanaka ◽  
Tomomi Tanaka ◽  
Masahiro Miyata ◽  
Kazunobu Ichikawa ◽  
Tsuneo Konta ◽  
...  
Keyword(s):  
Cardiovascular Mortality ◽  
Large Scale ◽  
Hazard Analysis ◽  
Population Attributable Fraction ◽  
Attributable Fraction ◽  
Proportional Hazard ◽  
Community Based ◽  
Cox Proportional Hazard ◽  
Hazard Ratios

Abstract Background and Aims Hyperuricemia is often observed in subjects with chronic kidney disease and is associated with all-cause and cardiovascular mortality. In this study, we evaluated the effect size of hyperuricemia for all-cause and cardiovascular mortality in a community-based population, using the index of population attributable fraction (PAF). Method This large-scale cohort study used the nationwide database of 500,511 health check-up participants (215,728 men, 284,783 women, average age 62 years) and calculated the PAF of hyperuricemia (serum uric acid &gt;7 mg/dL) for all-cause and cardiovascular deaths during the 7-year follow-up period. Results The frequency of hyperuricemia at baseline was 9.7% in total subjects (men: 22.0%; women: 2.6%). During the follow-up period, 5,578 deaths (1.1%) were noted (men: 3,749 [1.7%], women: 1,829 [0.6%]), including 1,104 cardiovascular deaths (0.2%) (men: 762 [0.4%], women: 342 [0.1%]). In the Cox proportional hazard analysis adjusted for confounding factors including age, gender, body mass index, smoking, alcohol consumption, hypertension, diabetes, dyslipidemia and eGFR, hyperuricemia was an independent risk factor for all-cause and cardiovascular mortality, (adjusted hazard ratios [95% confidence interval]; 1.39 [1.27-1.53] for all-cause mortality, and 1.76 [1.47-2.11] for cardiovascular mortality). The adjusted PAF of hyperuricemia for all-cause and cardiovascular deaths were 3.1% and 4.7% (approximately 1 in 32 all-cause deaths, and 1 in 21 cardiovascular deaths), respectively. In subgroup analyses, the association between hyperuricemia and death was stronger in men and smokers. The adjusted PAF for all-cause and cardiovascular deaths was 5.5% and 8.6% (approximately 1 in 18 all-cause deaths, 1 in 12 cardiovascular deaths) in men, and 6.2% and 8.2% (approximately 1 in 16 all-cause deaths, 1 in 12 cardiovascular deaths) in smokers, respectively. Conclusion This study showed that a substantial number of all-cause and cardiovascular deaths, was statistically attributed to hyperuricemia in the community-based population, especially men and smokers.

scholarly journals Association Between Metabolic Syndrome and an Increased Risk of Hospitalization for Heart Failure in Population of HFpEF

2021 ◽  
Vol 8 ◽  
Author(s):  
Ying Zhou ◽  
Liyao Fu ◽  
Jiaxing Sun ◽  
Zhaowei Zhu ◽  
Zhenhua Xing ◽  
...  
Keyword(s):  
Heart Failure ◽  
Metabolic Syndrome ◽  
Heart Function ◽  
Proportional Hazard ◽  
Cox Proportional Hazard ◽  
Hazard Ratios ◽  
Increased Risk ◽  
Multivariable Adjustment

Background: The association between metabolic syndrome and the development of heart failure (HF) with preserved ejection fraction (HFpEF) has not been completely clarified.Aim: To evaluate the association between metabolic syndrome and the risk of HF hospitalization for patients with HFpEF.Methods: Patient data were obtained from the American cohort of the Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone Antagonist (TOPCAT) trial database. Data for the primary outcome (hospitalization for HF) and secondary outcomes (all-cause mortality, cardiovascular mortality, and all-cause hospitalization) were collected, and hazard ratios (HRs) for the patients with and without metabolic syndrome were analyzed by applying a multivariable Cox proportional hazard model.Results: Among the 1,548 total participants, 1,197 had metabolic syndrome. The patients with metabolic syndrome exhibited worse heart function and a lower quality of life than those without metabolic syndrome. During the 3.3 years of follow-up, 351 patients were hospitalized for HF. After a multivariable adjustment, the risk of hospitalization for HF and all-cause hospitalization (adjusted HR = 1.42, 95% CI: 1.01–2.00; p = 0.042 and adjusted HR = 1.27; 95% CI: 1.04–1.54; p = 0.017, respectively) were independently associated with HFpEF for the patients with metabolic syndrome. In addition, the risks of HF hospitalization and all-cause hospitalization among 267 propensity score-matched patients were higher for patients with metabolic syndrome (HR = 1.53, 95% CI = 1.05–2.23, and p = 0.025 and HR = 1.34, 95% CI = 1.08–1.67, and p = 0.009, respectively).Conclusion: The risks of HF hospitalization and all-cause hospitalization were higher for patients with HFpEF having metabolic syndrome than for those without metabolic syndrome.

scholarly journals Acid suppressants use and the risk of dementia: A population-based propensity score-matched cohort study

PLoS ONE ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. e0242975
Author(s):  
Chia-Liang Wu ◽  
Wei-Yi Lei ◽  
Jaw-Shing Wang ◽  
Ching-En Lin ◽  
Chien-Lin Chen ◽  
...  
Keyword(s):  
Cohort Study ◽  
Propensity Score ◽  
Multivariable Analysis ◽  
Population Based ◽  
Research Database ◽  
Proportional Hazard ◽  
Proportional Hazard Model ◽  
Cox Proportional Hazard ◽  
H2 Antagonist

In this population-based propensity score matched (PSM) cohort study, we aimed to investigate the risk of developing dementia with the use of acid suppressants, including proton pump inhibitors (PPIs) and histamine-2 receptor antagonists (H2 antagonists). Cohorts of PPI users (n = 2,778), H2 antagonist users (n = 6,165), and non-users (n = 86,238) were selected from a dataset covering the years 2000 to 2010 in Taiwan’s National Health Insurance Research Database. Patients in the three groups were PSM at a ratio of 1:1 within each comparison cohort (CC). Three CCs were created: (1) PPI users compared to non-users (CC1, n = 2,583 pairs); (2) H2 antagonist users compared to non-users (CC2, n = 5,955 pairs); and (3) PPI users compared to H2 antagonist users (CC3, n = 2,765 pairs). A multivariable robust Cox proportional hazard model was used to estimate the adjusted hazard ratio (aHR) and the 95% confidence interval (CI) for the risk of developing dementia. The multivariable analysis results show that the aHR of developing dementia during the follow-up period was 0.72 (CC1: 95% CI = 0.51–1.03, P = 0.07) for PPI users and 0.95 (CC2: 95% CI = 0.74–1.22, P = 0.69) for H2 antagonist users, when compared to non-users. Between the patients using acid suppressants, there was no difference between PPI and H2 antagonist users in the risk of developing dementia (CC3: aHR = 0.82, 95% CI = 0.58–1.17, P = 0.28). In conclusion, no association was observed between the use of acid suppressants and the risk of developing dementia in any of the three CCs. Further, randomized controlled trials are warranted to confirm this relationship.

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