1.Health profile of workers from different industries in Singapore.
Sin Eng CHIA ; Mei Ling TAN ; Elise CHEOK ; Peh Woon ONG
Singapore medical journal 2025;66(5):271-277
INTRODUCTION:
Workplace safety and health are interrelated - a worker who is not healthy may cause safety lapses at the workplace; conversely, safety lapses could affect the health of the workers. This study was part of a larger Total Workplace Safety and Health (WSH) programme run by the Workplace Safety and Health Council, Singapore. The objectives were to obtain a baseline health profile of workers across four major industries and identify important health risks for targeted workplace interventions.
METHODS:
Five service providers (SPs) were appointed to run the Total WSH programme. As part of the programme, SPs conducted an anonymous basic health survey among workers of participating companies.
RESULTS:
The responses of 6,373 respondents from the cleaning, construction, manufacturing, and transport and storage industries were studied. The overall response rate was 62%. Key health issues identified were high rates of obesity (22%) and smoking (24%) and low prevalence of regular exercise and healthy dietary habits. Chronic disease rates were similar to population self-reported rates (hypertension 15%, high lipid 12% and diabetes mellitus 6%). The workers reported high work stress (13%).
CONCLUSION
Health issues are prevalent in the workforce and may affect work and employee safety. It is increasingly important for employees' health to be considered in risk assessments and prioritised in workplace safety and health management systems and strategies. Health promotion interventions should be targeted, and multilevel and multicomponent initiatives should be integrated with pre-existing occupational safety programmes.
Humans
;
Singapore/epidemiology*
;
Occupational Health
;
Male
;
Female
;
Adult
;
Middle Aged
;
Industry
;
Workplace
;
Health Surveys
;
Surveys and Questionnaires
;
Smoking/epidemiology*
;
Obesity/epidemiology*
;
Health Status
;
Occupational Stress/epidemiology*
;
Young Adult
2.Role of lifestyle factors on the development and long-term prognosis of pneumonia and cardiovascular disease in the Chinese population.
Yizhen HU ; Qiufen SUN ; Yuting HAN ; Canqing YU ; Yu GUO ; Dianjianyi SUN ; Yuanjie PANG ; Pei PEI ; Ling YANG ; Yiping CHEN ; Huaidong DU ; Mengwei WANG ; Rebecca STEVENS ; Junshi CHEN ; Zhengming CHEN ; Liming LI ; Jun LV
Chinese Medical Journal 2025;138(12):1456-1464
BACKGROUND:
Whether adherence to a healthy lifestyle is associated with a lower risk of developing pneumonia and a better long-term prognosis remains unclear. This study aimed to investigate associations of individual and combined lifestyle factors (LFs) with the incidence risk and long-term prognosis of pneumonia hospitalization.
METHODS:
Using data from the China Kadoorie Biobank study, we used the multistate models to investigate the role of five high-risk LFs, including smoking, excessive alcohol drinking, unhealthy dietary habits, physical inactivity, and unhealthy body shape, alone or in combination in the transitions from a generally healthy state at baseline to pneumonia hospitalization or cardiovascular disease (CVD, regarded as a reference outcome), and subsequently to mortality.
RESULTS:
Most of the five high-risk LFs were associated with increased risks of transitions from baseline to pneumonia and from pneumonia to death, but with different risk estimates. The greater the number of high-risk LFs, the higher the risk of developing pneumonia and long-term mortality risk after pneumonia, with the strength of associations comparable to that of LFs and CVD. Compared to participants with 0-1 high-risk LF, the adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for transitions from baseline to pneumonia and from pneumonia to death in those with five high-risk LFs were 1.43 (1.28-1.60) and 1.98 (1.61-2.42), respectively. Correspondingly, the respective HRs (95% CIs) for transitions from baseline to CVD and from CVD to death were 2.00 (1.89-2.11) and 1.44 (1.30-1.59), respectively. The risk estimates changed slightly when further adjusting for the presence of major chronic diseases.
CONCLUSION
In this Chinese population, unhealthy LFs were associated with an increased incidence and long-term mortality risk of pneumonia.
Adult
;
Aged
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Female
;
Humans
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Male
;
Middle Aged
;
Cardiovascular Diseases/etiology*
;
China/epidemiology*
;
Life Style
;
Pneumonia/etiology*
;
Prognosis
;
Risk Factors
;
Smoking
3.Separate and Combained Associations of PM 2.5 Exposure and Smoking with Dementia and Cognitive Impairment.
Lu CUI ; Zhi Hui WANG ; Yu Hong LIU ; Lin Lin MA ; Shi Ge QI ; Ran AN ; Xi CHEN ; Hao Yan GUO ; Yu Xiang YAN
Biomedical and Environmental Sciences 2025;38(2):194-205
OBJECTIVE:
The results of limited studies on the relationship between environmental pollution and dementia have been contradictory. We analyzed the combined effects of PM 2.5 and smoking on the prevalence of dementia and cognitive impairment in an elderly community-dwelling Chinese population.
METHODS:
We assessed 24,117 individuals along with the annual average PM 2.5 concentrations from 2012 to 2016. Dementia was confirmed in the baseline survey at a qualified clinical facility, and newly suspected dementia was assessed in 2017, after excluding cases of suspected dementia in 2015. National census data were used to weight the sample data to reflect the entire population in China, with multiple logistic regression performed to analyze the combined effects of PM 2.5 and smoking frequency on dementia and cognitive impairment.
RESULTS:
Individuals exposed to the highest PM 2.5 concentration and smoked daily were at higher risk of dementia than those in the lowest PM 2.5 concentration group ( OR, 1.603; 95% CI [1.626-1.635], P < 0.0001) and in the nonsmoking group ( OR, 1.248; 95% CI [1.244-1.252]; P < 0.0001). Moderate PM 2.5 exposure and occasional smoking together increased the short-term risk of cognitive impairment. High-level PM 2.5 exposure and smoking were associated with an increased risk of dementia, so more efforts are needed to reduce this risk through environmental protection and antismoking campaigns.
CONCLUSION
High-level PM 2.5 exposure and smoking were associated with an increased risk of dementia. Lowering the ambient PM 2.5, and smoking cessation are recommended to promote health.
Humans
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Dementia/etiology*
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Male
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Aged
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Female
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Cognitive Dysfunction/etiology*
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China/epidemiology*
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Particulate Matter/analysis*
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Smoking/epidemiology*
;
Air Pollutants/analysis*
;
Aged, 80 and over
;
Environmental Exposure/adverse effects*
;
Prevalence
;
Middle Aged
4.Analysis of Influencing Factors of Death in the Elderly With Coronavirus Disease 2019 Based on Propensity Score Matching.
Ying CHEN ; Hai-Ping HUANG ; Xin LI ; Si-Jie CHAI ; Jia-Li YE ; Ding-Zi ZHOU ; Tao ZHANG
Acta Academiae Medicinae Sinicae 2025;47(3):375-381
Objective To analyze the influencing factors of death in the elderly with coronavirus disease 2019(COVID-19).Methods The case data of death caused by COVID-19 in West China Fourth Hospital from January 1 to July 8,2023 were collected,and surviving cases from the West China Elderly Health Cohort infected with COVID-19 during the same period were selected as the control.LASSO-Logistic regression was adopted to analyze the data after propensity score matching and the validity of the model was verified by drawing the receiver operating characteristic curve.Results A total of 3 239 COVID-19 survivors and 142 deaths with COVID-19 were included.The results of LASSO-Logistic regression showed that smoking(OR=3.33,95%CI=1.46-7.59,P=0.004),stroke(OR=3.55,95%CI=1.15-10.30,P=0.022),malignant tumors(OR=19.93, 95%CI=8.52-49.23, P<0.001),coronary heart disease(OR=7.68, 95%CI=3.52-17.07, P<0.001),fever(OR=0.51, 95%CI=0.26-0.96, P=0.042),difficulty breathing or asthma symptoms(OR=21.48, 95%CI=9.44-51.95, P<0.001),and vomiting(OR=8.19,95%CI=2.87-23.58, P<0.001)increased the risk of death with COVID-19.The prediction model constructed based on the influencing factors achieved an area under the curve of 0.889 in the test set.Conclusions Smoking,stroke,malignant tumors,coronary heart disease,fever,breathing difficulty or asthma symptoms,and vomiting were identified as key factors influencing the death risk in COVID-19.
Humans
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COVID-19/mortality*
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Aged
;
Propensity Score
;
China/epidemiology*
;
Risk Factors
;
Logistic Models
;
Smoking
;
SARS-CoV-2
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Male
;
Female
;
Stroke
;
Neoplasms
6.The distribution of blood pressure and associated factors of the elderly with type 2 diabetes in Jiangsu Province.
Jia Hui LIU ; Han Kun XIE ; Jian SU ; Zheng ZHU ; En Chun PAN ; Yan LU ; Fu Ping WAN ; Qing Yang YAN ; Ning ZHANG ; Shu Jun GU ; Ming WU ; Jin Yi ZHOU ; Chong SHEN
Chinese Journal of Preventive Medicine 2023;57(5):614-625
Objective: To investigate the distribution of blood pressure and analyze the associated factors of blood pressure of the elderly with type 2 diabetes in Jiangsu Province. Methods: The elderly over 60 years old participants with type 2 diabetes in the communities of Huai'an City and Changshu City, Jiangsu Province were selected in this study. They were divided into two groups: taking antihypertensive drugs and not taking antihypertensive drugs. The demographic characteristics, such as age and sex, and relevant factors were collected by questionnaire. The systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured by physical examination. The percentile of SBP and DBP in each age group of men and women were described. The kernel density estimation curve was used to show the blood pressure distribution. The trend of blood pressure with age was fitted by locally weighted regression. The logistic regression model was used to analyze relevant factors of blood pressure. Results: A total of 12 949 participants were included in this study, including 7 775 patients in the antihypertensive drug group and 5 174 patients in the group without antihypertensive drugs. The SBP of participants was concentrated at 140-160 mmHg, and their DBP was concentrated at 75-85 mmHg. There were significant differences in the distribution of blood pressure among the subgroups of body mass index (BMI) and rural areas whether taking antihypertensive drugs and not. For participants aged under 80 years old, the SBP showed an increasing trend with age and the DBP showed a decreasing trend with age. Age, BMI ≥24 kg/m2, fasting blood glucose ≥7.0 mmol/L, living in rural areas and no smoking were influencing factors of the elevated SBP; BMI ≥24 kg/m2, male, living in rural areas, no smoking, drinking alcohol and not receiving drug hypoglycemic treatment were influencing factors of the elevated DBP. Conclusion: The SBP of older diabetic adults in Jiangsu Province is at a high level, and the distribution of blood pressure is significantly different between men and women in taking antihypertensive drugs group. The SBP presents a rising trend and the DBP is decreasing at the age of 60-80 years. The blood pressure level of this population are mainly affected by age, BMI, urban and rural areas, smoking.
Adult
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Aged
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Humans
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Male
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Female
;
Middle Aged
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Aged, 80 and over
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Blood Pressure/physiology*
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Diabetes Mellitus, Type 2/epidemiology*
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Antihypertensive Agents/therapeutic use*
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Smoking
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Body Mass Index
;
Hypertension/epidemiology*
7.Forecasting the burden of disease from diabetes under the scenarios of specific risk factors control in China in 2030.
Yan Hong FU ; Ting Ling XU ; Zhen Zhen RAO ; Jiang Mei LIU ; Ruo Tong LI ; Min LIU ; Shi Cheng YU ; Mai Geng ZHOU ; Wen Lan DONG ; Guo Qing HU
Chinese Journal of Epidemiology 2023;44(4):581-586
Objective: To forecast mortality, age-standardized mortality, and probability of premature mortality from diabetes, and to simulate the impact of controlling risk factors by 2030 in China. Methods: We simulated the burden of disease from diabetes in six scenarios according to the development goals of risk factors control by the WHO and Chinese government. Based on the theory of comparative risk assessment and the estimates of the burden of disease for China from the Global Burden of Disease Study 2015, we used the proportional change model to project the number of deaths, age-standardized mortality, and probability of premature mortality from diabetes under different scenarios of risk factors control in 2030. Results: If the trends in exposures to risk factors from 1990 to 2015 continued. Mortality, age-standardized mortality, and probability of premature mortality from diabetes would increase to 32.57/100 000, 17.32/100 000, and 0.84% by 2030, respectively. During that time, mortality, age-standardized mortality and probability of premature mortality for males would all be higher than for females. If the goals of controlling risk factors were all achieved, the number of deaths from diabetes in 2030 would decrease by 62.10% compared to the predicted numbers based on the historical trends in exposure to risk factors, and the probability of premature mortality would drop to 0.29%. If only the exposure to a single risk factor were achieved by 2030, high fasting plasma glucose control would have the greatest impact on diabetes, resulting in a 56.00% reduction in deaths compared to the predicted numbers based on the historical trends, followed by high BMI (4.92%), smoking (0.65%), and low physical activity (0.53%). Conclusions: Risk factors control plays an important role in reducing the number of deaths, age-standardized mortality rate, and probability of premature mortality from diabetes. We suggest taking comprehensive measures to control relevant risk factors for certain populations and regions, to achieve the goal of reducing the burden of disease from diabetes as expected.
Male
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Female
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Humans
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Risk Factors
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Diabetes Mellitus/epidemiology*
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Mortality, Premature
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Smoking
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Cost of Illness
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China/epidemiology*
;
Global Burden of Disease
8.Incidence of chronic obstructive pulmonary disease and risk factors in the Suzhou cohort.
Meng Shi YANG ; Xi Kang FAN ; Jian SU ; Hao YU ; Yan LU ; Yu Jie HUA ; Pei PEI ; Jun LYU ; Ran TAO ; Jin Yi ZHOU ; Ming WU
Chinese Journal of Epidemiology 2023;44(6):868-876
Objective: To understand the incidence of chronic obstructive pulmonary disease (COPD) in the Suzhou cohort, and explore the risk factors for the development of COPD in Suzhou, and provide a scientific basis for COPD prevention. Methods: This study was based on the China Kadoorie Biobank project in Wuzhong District, Suzhou. After excluding individuals with airflow obstruction and self-reported chronic bronchitis, emphysema, or pulmonary heart disease at baseline, 45 484 individuals were finally included in the analysis. Cox proportional risk models were used to analyze risk factors of COPD and calculate hazard ratios and 95% confidence interval (CI) in the Suzhou cohort. The effect modifications of smoking on the association between other risk factors and COPD were evaluated. Results: Complete follow-up was available through December 31, 2017. Participants were followed up for a median of 11.12 years, and 524 individuals were diagnosed with COPD during the follow-up period; the incidence was 105.54 per 100 000 person-years. Multivariate Cox proportional risk regression models showed that age (HR=3.78, 95%CI:3.32-4.30), former smoking (HR=2.00, 95%CI:1.24-3.22), current smoking (<10 cigarettes/day, HR=2.14, 95%CI:1.36-3.35;≥10 cigarettes/day, HR=2.69, 95%CI:1.60-4.54), history of respiratory disease (HR=2.08, 95%CI:1.33-3.26), daily sleep duration ≥10 hours (HR=1.41, 95%CI:1.02-1.95) were associated with increased risk of COPD. However, education level of primary school and above (primary or junior high school, HR=0.65, 95%CI:0.52-0.81; high school and above, HR=0.54, 95%CI:0.33-0.87), consuming fresh fruit daily (HR=0.59, 95%CI:0.42-0.83) and consuming spicy food weekly (HR=0.71, 95%CI:0.53-0.94) were associated with reduced risk of COPD. Conclusions: The incidence of COPD is low in Suzhou. Older age, smoking, history of respiratory disease, and long sleep duration were risk factors for the development of COPD in the Suzhou cohort.
Humans
;
Incidence
;
Pulmonary Disease, Chronic Obstructive/epidemiology*
;
Risk Factors
;
Smoking/epidemiology*
;
Tobacco Smoking
9.Analysis of tobacco dependence level and its influencing factors on Tianjin residents.
Sheng Hui YANG ; Gang WANG ; Chen CHEN
Chinese Journal of Epidemiology 2023;44(6):931-936
Objective: To understand the prevalence and influencing factors of tobacco dependence among the population aged 15-69 in Tianjin to provide the basis for formulating targeted smoking control intervention policies and carrying out scientific smoking cessation intervention services. Methods: The data of this study comes from the 2018 Tianjin residents' health literacy monitoring survey. Probability-proportional-to-size sampling is adopted for sampling. SPSS 26.0 software was used for data cleaning and statistical analysis, and χ2 test and binary logistic regression were used to analyze the influencing factors. Results: A total of 14 641 subjects aged 15-69 were included in this study. After standardized, with a smoking rate of 25.5%, including 45.5% for men and 5.2% for women. Among the population aged 15-69, the prevalence of tobacco dependence was 10.7%; among current smokers, the prevalence rate of tobacco dependence is 40.1%, of which the prevalence rate of male tobacco dependence is 40.0%, and the prevalence rate of female tobacco dependence is 40.6%. According to multivariate logistic regression analysis, people who live in rural areas, have an education level of primary school or below, smoke every day, smoke the first cigarette ≤15 years old, smoke ≥21 cigarettes per day, and smoke for more than 20 packet years, people who report poor physical health are more likely to suffer from tobacco dependence (all P<0.05); age and smoking age did not affect the possibility of tobacco dependence (all P>0.05). Among current smokers, there was no significant difference in their willingness to quit smoking whether they had tobacco dependence (P>0.05). The proportion of people with tobacco dependence who have tried to quit smoking and failed is higher (P<0.001). Conclusions: The prevalence of tobacco dependence among smokers aged 15-69 in Tianjin is high, and the demand for quitting smoking is great. Therefore, smoking cessation publicity should be carried out for key groups, and smoking cessation intervention work in Tianjin should be continuously promoted.
Adolescent
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Female
;
Humans
;
Male
;
Smokers
;
Smoking/epidemiology*
;
Tobacco Smoking
;
Tobacco Use Disorder/epidemiology*
;
Young Adult
;
Adult
;
Middle Aged
;
Aged
10.Epidemiological distribution characteristics of peripheral blood mosaic chromosomal alteration in adults from 10 regions of China.
Ming Yu SONG ; Yu Xuan ZHAO ; Yu Ting HAN ; Jun LYU ; Can Qing YU ; Pei PEI ; Huai Dong DU ; Jun Shi CHEN ; Zheng Ming CHEN ; Dian Jian Yi SUN ; Li Ming LI
Chinese Journal of Epidemiology 2023;44(7):1021-1026
Objective: To describe the epidemiological distribution characteristics of peripheral blood mosaic chromosomal alteration (mCA) in community adults aged 30-79 years in 10 regions of China. Methods: A total of 100 297 participants with complete baseline information (demographic characteristics, lifestyle, physical examination, etc.) and genotyping data of blood-derived DNA in ten regions of the China Kadoorie Biobank study were included. The mCAs were detected with the Mosaic Chromosomal Alterations pipeline, and logistic regression models were used to compare the differences in the detection rate of mCAs in different regions and populations. Results: A total of 5 810 mCA carriers were detected, with the detection rate of 5.8%. The standardized detection rate was 5.1%. The baseline detection rate of mCA increased with age, which were 3.4%, 5.0%, and 9.4% in those aged 30-, 51-, and >60 years, respectively (trend test P<0.001). A more significant proportion of mCAs were found in men (8.0%) than women (4.0%), as well as in urban areas (6.4%) than in rural areas (5.3%), the difference was significant (P<0.001). After adjusting for age and gender, the detection rate of mCA was higher in current smokers or people quitting smoking due to illness and people with low physical activity level, and the mCA detection rate was lower in obesy people (5.3%) than that in people with normal body weight (5.9%) (P=0.006). Conclusions: The detection rate of mCAs varied with region and population in community adults aged 30-79 years in 10 regions of China. The study results might contribute to the molecular identification of aging populations and guide precision prevention of age-related diseases such as cancers.
Adult
;
Female
;
Humans
;
Male
;
Middle Aged
;
China/epidemiology*
;
Life Style
;
Risk Factors
;
Smoking/epidemiology*
;
Aged

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