The Prevalence of Obesity and Metabolic Syndrome in the Korean Military Compared with the General Population

Correlation between Obesity and Risk Factors of Cardiovascular Diseases in Military Personnel

Background

It is critical to precisely assess the presence of cardiovascular (CV) risk in military personnel, in order to avoid potentially CV-events. In Iran limited number of studies have been performed on military personnel and their CV-risk. We aimed to investigate correlation between obesity and cardiovascular disease (CVD) risk factors in military personnel.

Methods

The present cross-sectional analytical study, analyzed the data of 559 military personnel in Tehran, Iran in 2023. The dataset sourced from the registry system. The biochemical analysis of blood samples was performed by a biomedical analysis company. The univariate regression analyses were conducted through separate univariate linear regression within the obesity group.

Results

The mean age of personnel was 36.58 years. Among obese personel, there was an inverse relationship between age and cholesterol β=-0.11. Moreover, hemoglobin β=-0.68 and MCH β=-0.33 were significantly related to high cholesterol, MCH is associated with risk of metabolic syndrome (β=-0.57). Moreover among obese personnel, lower uric acid levels and higher ALT levels are correlated with an increased risk of Diabetes.

Conclusion

The prevalence of obesity in military personnel was the same as in the general population. Diabetes, hyperlipidemia, high blood pressure, obesity, and metabolic syndrome were all linked to CVD risk factors among military personnel. Although the prevalence of metabolic syndrome in military personnel was lower than their peers in other countries, other risk factors of CVD were prevalent among military personnel.

Obesity and Overweight: First Comprehensive Overview in the French Armed Forces

INTRODUCTION

The global rise in obesity is well-established, with significant health implications. This study aims to comprehensively assess overweight and obesity prevalence within the French Armed Forces.

MATERIALS AND METHODS

Using data from the Unique Medical-Military Software (UMMS) in 2018, a cross-sectional study was conducted on active French Military personnel aged 18 and above, who underwent periodic medical examinations (PME) in 2017. Body Mass Index (BMI) served as the main criterion for overweight and obesity classification. A representative sample was obtained through random sampling.

RESULTS

The sample included 17,082 individuals, revealing an average age of 33.5 years, with 36.1% classified as overweight and 9.6% as obese. The mean BMI of women was significantly lower than that of men (23.9 vs 25.3 kg/m2-P < .001). Results indicated that 22.4% of women vs 38.5% of men were overweight (P < .001). For obesity, the difference was not significant (8.8% of women vs 9.8% of men-P = .138). BMI increased with age, and non-commissioned officers (NCOs) showed the highest prevalence of obesity. Gendarmes exhibited the highest BMI and overweight rates (50.1%) among military branches.

CONCLUSION

While obesity is less prevalent in the French Armed Forces compared to the general population, the study emphasizes the equivalent prevalence of overweight. We confirm here that the global epidemic of obesity and overweight affects all armed forces. France seems less affected than other Western armies. Targeting specific groups, such as NCOs and the national gendarmerie, is crucial for prevention.

Impact of Korean Military Service on the Prevalence of Steatotic Liver Disease: A Longitudinal Study of Pre-enlistment and In-Service Health Check-Ups

Background/Aims

Young Korean men are obligated to serve in the military for 18 to 21 months. We investigated the effects of military service on steatotic liver disease (SLD) and other metabolic parameters.

Methods

Pre-enlistment health check-up performed from 2019 to 2022 and in-service health check-up performed from 2020 to 2022 were merged as paired data. SLD was defined as a hepatic steatosis index of 36 or higher. Hypertension (HTN) and hypertriglyceridemia were also included in the analysis.

Results

A total of 503,136 paired cases were included in the analysis. Comparing pre-enlistment and in-service health check-ups, the prevalence of SLD (22.2% vs 17.6%, p<0.001), HTN (7.6% vs 4.3%, p<0.001), and hypertriglyceridemia (8.1% vs 2.9%, p<0.001) decreased during military service. In terms of body mass index, the proportion of underweight (8.2% vs 1.4%, p<0.001) and severely obese (6.1% vs 4.9%, p<0.001) individuals decreased over time. Regarding factors associated with SLD development and resolution, age was positively associated with SLD development (odds ratio, 1.146; p<0.001) and a health check-up interval of <450 days was a protective factor for SLD development (odds ratio, 0.746; p<0.001). Those serving in the marines were less likely to develop SLD, whereas those serving in the navy were more likely to develop SLD. Serving in the army or the navy was negatively associated with SLD resolution, whereas serving in the air force was positively associated with SLD resolution.

Conclusions

The prevalence of SLD, HTN, and hypertriglyceridemia decreased substantially during Korean military service.

Rotating shift and BMI increase among healthcare workers in a military hospital: pre- and post-pandemic analysis in Taiwan

Background

The increasing prevalence of high body mass index (BMI) emphasizes the need for action. Understanding of BMI factors among military hospital healthcare workers remains limited. This study aims to address this gap by analyzing BMI risk factors and changes pre- and post-coronavirus 2019 pandemic among military hospital healthcare workers in central Taiwan from 2019 to 2021.

Methods

Conducted at a military hospital in central Taiwan, this study analyzed anonymized health examination data from 2019 to 2021 for 483 healthcare workers. We performed generalized estimating equations to investigate trends in BMI and its association with various factors, including age, sex, job titles, military status, job tenure, work shifts, and lifestyle habits.

Results

The risk of increased BMI was higher in 2021 compared to 2019 (risk ratio [RR]: 1.008, 95% confidence interval [CI]: 1.001-1.014). Individuals on rotating shifts had a higher risk of increased BMI compared to day shift workers (RR: 1.021; 95% CI: 1.008-1.035) and higher odds of obesity (odds ratio: 1.546; 95% CI: 1.099-2.175). Among obese individuals, BMI in soldiers was approximately 4.9% lower than in non-soldiers (RR: 0.951; 95% CI: 0.915-0.988).

Conclusions

This study identified a significant post-pandemic increase in BMI among healthcare workers in a Taiwanese military hospital, with rotating shifts being a key risk factor for both increased BMI and obesity. Work-related factors influenced BMI changes among obese individuals, while non-work-related factors were significant for non-obese individuals. These findings highlight the broader effects of the pandemic and the specific impact of work-related factors on obese healthcare workers.

Association between Weight Change and Incidence of Dyslipidemia in Young Adults: A Retrospective Cohort Study of Korean Male Soldiers

Background

Recent lifestyle changes have increased the prevalence of dyslipidemia in Korea. Young men are known to have a low awareness of dyslipidemia and a lack of motivation to maintain their weight. However, the association between weight change and dyslipidemia in young adults has not been thoroughly examined.

Methods

Data from the Armed Forces Medical Command Defense Medical Information System database were used. In this study, 15,068 soldiers who underwent private and corporal health examinations between May 2020 and April 2022 were included. The difference in weights between the two different health examinations was used to quantify weight change. Four components of the lipid profile were used to assess dyslipidemia during the corporal health examination.

Results

After adjusting for relevant covariates, weight gain was associated with increased risk of dyslipidemia (adjusted odds ratio [OR], 1.38 [95% confidence interval, CI, 1.15 to 1.64] for the 5% to 10% weight gain group; and OR, 2.02 [95% CI, 1.59 to 2.55] for the ≥10% weight gain group), whereas weight loss was associated with decreased risk (adjusted OR, 0.82 [95% CI, 0.68 to 0.98] for the 5% to 10% weight loss group; and OR, 0.38 [95% CI, 0.27 to 0.53] for the ≥10% weight loss group). In subgroup analysis based on the participants' baseline body mass index, smoking status, regular exercise habits, and hypertension status, there were no significant differences between the subgroups.

Conclusion

Weight change was associated with dyslipidemia in Korean male soldiers. The findings suggest that limiting weight gain in young adults by encouraging a healthy lifestyle may help prevent dyslipidemia.

Prevalence of traditional cardiovascular risk factors for coronary artery disease and elevated fibrinogen among active military personnel in Republic of Serbia: A cross-sectional study

Background

It is well known that less than 1% of the population achieves ideal cardiovascular health, and 65% of patients do not have their conventional risk biomarkers under control. Military service has its own particularities that may contribute to cardiovascular risk.

Methods

To define the preventive strategy goals, we analysed the prevalence of traditional cardiovascular risk factors for coronary artery disease and elevated fibrinogen among active military personnel in the Republic of Serbia.

Results

The cross-sectional study included 738 individuals older than 20 years, mostly between 31 and 40 years old. The mean value of SBP for the whole group was 122.39± 9.42 mmHg, and for the DBP, it was 79.94±6.56 mmHg. Among active military personnel, 72.7% (533) had prehypertension, and 13.8% (101) was hypertensive. Both body mass and BMI index among the observed age subgroups were found to increase with the age of the patients and cholesterol values. HDL cholesterol values also differed statistically significantly between age subgroups, with the proportion of individuals with HDL less than 1.5 mmol/L in all subgroups being about 85%, the only in the 41-50 age group was lower, 76.4%. LDL cholesterol and the proportion of individuals who had LDL 3.5 increases with the age of patients, and an identical trend was recorded with triglycerides. With ageing, fibrinogen levels increased.

Conclusions

Those findings considering cardio and cerebrovascular risk factors would help create a new approach for primary prevention for these categories of individuals.

Recent Trends of Metabolic Syndrome and Its Components in Military Recruits from Saudi Arabia

Metabolic syndrome (Met-S) constitutes the risk factors and abnormalities that markedly increase the probability of developing diabetes and coronary heart disease. An early detection of Met-S, its components and risk factors can be of great help in preventing or controlling its adverse consequences. The aim of the study was to determine the prevalence of cardio-metabolic risk factors in young army recruits from Saudi Arabia. A total of 2010 Saudis aged 18-30 years were randomly selected from groups who had applied to military colleges. In addition to designed questionnaire, anthropometric measurements and blood samples were collected to measure Met-S components according to the International Diabetes Federation (IDF) criteria. Met-S prevalence was 24.3% and it was higher in older subjects than the younger ones. There were significant associations between Met-S and age, education level and marital status. The most common Met-S components were high fasting blood sugar (63.6%) followed by high blood pressure (systolic and diastolic, 63.3% and 37.3% respectively) and high body mass index (57.5%). The prevalence of pre-diabetes and diabetes were found to be 55.2% and 8.4%, respectively. Hypertriglyceridemia was found in 19.3% and low levels of high-density lipoproteins (HDL) in 11.7% of subjects. In conclusion, there is a high prevalence of Met-S in young adults of Saudi Arabia. There is a need for regular monitoring of Met-S in young populations to keep them healthy and fit for nation building. It is also important to design and launch community-based programs for educating people about the importance of physical activity, cessation of smoking and eating healthy diet in prevention of chronic diseases.