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Original ArticleOpen Access
Incidence and Factors Associated with Overweight and Obesity, and Hypertensive Disorder, among Staff in a Private Healthcare Setting: A Retrospective Cohort Study
Kitayaporn D 
,
Sudlah N ,
Athirakul K ,
Jenkolrob K ,
Anuras S ,
Anuras J
,
Sudlah N ,
Athirakul K ,
Jenkolrob K ,
Anuras S ,
Anuras J Objective: To determine the incidence and factors associated with overweight and obesity, and hypertensive disorder, amongstaff in a private healthcare setting.
Material and Method: The present retrospective cohort study examined the computerized data of Bumrungrad International(BI) Hospital staff that had undergone pre-employment and annual/bi-annual check-ups, between January 2000 and June2006.
Results: Data for the 3,678 staff surveyed comprised 7,338 visits, with a median follow-up time of 1.9 years; 81.9% werefemales, and the mean age (SD) was 27.1 (6.8) years. On their first visit, 8.5% could be classified as overweight or obese(Body Mass Index-[BMI] of 25.0+ kg/m2). The overall incidence of these conditions was 22.2/1,000 person-years (95%;Confidence Interval [CI] = 18.8-26.1). Cox’s regression analysis revealed that incidence increased with age (Relative Hazard[RH] = 4.4 for age 20-44 years [95% -CI 1.6-12.2], and RH = 8.2 [95% CI 2.4-27.5] for age > 45 years, reference: < 20years), but decreased among the registered nurses and ancillary professional staff (RH = 0.3, 95% CI 0.2-0.6). At cohortentry, 41.0% could be classified as pre-hypertensive (blood pressure 120-139/> 80-89 mmHg) and 1.9% as stages I and IIhypertension. The overall incidence of hypertensive disorder was 16.9/1,000 person-years (95%; CI 13.6-20.9). Baselinepre-hypertensive (RH 4.9, 95%; CI 2.6-9.3), males (RH 1.7, 95%; CI 1.1-2.7), age > 45 years (RH 3.2, 95%; CI 1.0-10.5),and BMI (RH ranges 3.3-6.4) were identified as independent risk factors for incident hypertension. In addition, 2.5% wereHBsAg-positive, and 33.3% had HBsAb antibody.
Conclusion: The present retrospective cohort study was instituted in a private healthcare setting, information generatedresulted in changes to the health-promotion programs of the organization.
Keywords: Hypertension, Obesity, Health Provider, Thailand
Material and Method: The present retrospective cohort study examined the computerized data of Bumrungrad International(BI) Hospital staff that had undergone pre-employment and annual/bi-annual check-ups, between January 2000 and June2006.
Results: Data for the 3,678 staff surveyed comprised 7,338 visits, with a median follow-up time of 1.9 years; 81.9% werefemales, and the mean age (SD) was 27.1 (6.8) years. On their first visit, 8.5% could be classified as overweight or obese(Body Mass Index-[BMI] of 25.0+ kg/m2). The overall incidence of these conditions was 22.2/1,000 person-years (95%;Confidence Interval [CI] = 18.8-26.1). Cox’s regression analysis revealed that incidence increased with age (Relative Hazard[RH] = 4.4 for age 20-44 years [95% -CI 1.6-12.2], and RH = 8.2 [95% CI 2.4-27.5] for age > 45 years, reference: < 20years), but decreased among the registered nurses and ancillary professional staff (RH = 0.3, 95% CI 0.2-0.6). At cohortentry, 41.0% could be classified as pre-hypertensive (blood pressure 120-139/> 80-89 mmHg) and 1.9% as stages I and IIhypertension. The overall incidence of hypertensive disorder was 16.9/1,000 person-years (95%; CI 13.6-20.9). Baselinepre-hypertensive (RH 4.9, 95%; CI 2.6-9.3), males (RH 1.7, 95%; CI 1.1-2.7), age > 45 years (RH 3.2, 95%; CI 1.0-10.5),and BMI (RH ranges 3.3-6.4) were identified as independent risk factors for incident hypertension. In addition, 2.5% wereHBsAg-positive, and 33.3% had HBsAb antibody.
Conclusion: The present retrospective cohort study was instituted in a private healthcare setting, information generatedresulted in changes to the health-promotion programs of the organization.
Keywords: Hypertension, Obesity, Health Provider, Thailand
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