Abstract:
Background
The stress at the work place (Occupational Stress) can be inferred from the existence of
problems in the employee/environment interaction or measured in terms of health
problems. The prevalence of cardiovascular disease (CVD) and its risk factors among
occupational groups have been reported. Cardiometabolic syndrome is identified as a risk
factor and the pre-state for CVD and type-2 diabetes. Metabolic syndrome is a cluster of risk
factors including obesity, hyperglycemia, hypertension and dyslipidemia. The association
between the level of occupational stress and development of metabolic syndrome remains
unclear.
Objectives
We aimed to determine the impact of occupational risk factors including stress on
metabolism in people with different working environment and to estimate the differences in
prevalence and risk of metabolic syndrome with relation to level of stress among individuals
with different occupations.
Methods
A cross sectional study was conducted on subjects (n=405) with three different occupations
with age ranging from 30-60 years: Bank employees (n=97), Bus drivers (n=90) and police
constables (n=108).The subjects not belonging to these three occupational groups served as
the control group (n=110). The level of stress was assessed using a validated perceived stress
scale (PSS), including 14-items. All the participants were further divided into 2 subgroups on
the basis of PSS scale: (a) Stressed and (b) Non-stressed. Fasting blood glucose, Glycosylated
HbA1c, lipid profile, cortisol, insulin, Lipoprotein(a), Homocysteine, C-reactive protein
(CRP) in serum and microalbumin in urine were measured.
Results
We found a significant rise in the serum cortisol level in all the participants those identified
as under stress (stressed subgroups) based on Perceived stress scale scoring. There was a
statistically significant difference in the levels of Cortisol between stressed and non-stressed
subgroups of all the three occupations. While no significant difference was noticed in serum
cholesterol and HDL cholesterol between stressed and non-stressed subgroups.
A significant positive correlation was observed between serum cortisol and fasting blood
glucose (p< 0.001), Glycosylated HbA1c (p<0.05) in the stressed subgroup of bank
employees and police constables. On the basis of NCEP ATP III guidelines, participants were
further classified into metabolic and non-metabolic syndrome subgroups. The prevalence of
metabolic syndrome was 38 % among all the study group participants (n=295). Waist
circumference level (p<0.001) was significantly raised in subjects with metabolic syndrome
subgroups of bus drivers, bank employees and police constables.
The CVD risk factors were quite high among the study group participants. We found that 10.9% subjects had BMI > 30 Kg / m2; 8.8% increased waist circumference; 15.6% elevated
LDL cholesterol: 13.7% raised triglyceride; 14.7% hypertension, diabetes 16.9% and
smoking habit 26.2 %.
Conclusion
The above findings demonstrate a significant association between level of stress and risk
factors of metabolic syndrome in the participants of three study groups. Risk factors of
metabolic syndrome were significantly higher in stressed subgroups when compared with
non-stressed subgroups. The study indicates that many employees from the studied
occupational groups were at the risk of developing CVD, type-2 diabetes and
Cardiometabolic syndrome. The study emphasizes about addressing the health complications
arising from the job stress and a more aggressive working health policy has to be
implemented at all work places.