The Association between Central Obesity and Peak Expiratory Flow Rate (PEFR) in Elderly at Pedawa Village, Buleleng, Bali, Indonesia
Objective. To determine the association between central obesity and peak expiratory flow rate (PEFR).
Methods. A cross-sectional analytical study was carried out in Pedawa village, Buleleng District, Bali Province, Indonesia, on August 13, 2016. A total of 117 elderly subjects above 60 years old were included in the study to assess the association between central obesity and PEFR, but only 90 subjects met the inclusion criteria of this study.
Results. Regardless of sex, using backward multiple regression analysis, fat has a negative correlation (β = -0.376) against PEFR while the visceral fat (β = 0.440) and height (β = 0.274) were positively correlated. Specifically in elderly with underweight and normal BMI, variables that were positively correlated with PEFR on multivariate analysis including visceral fat (β = 0.450) and height (β = 0.315), while fat had a negative correlation (β = -0.309). In elderly with overweight and obesity BMI, fat was the only variable that significantly correlated with PEFR on bivariate analysis (r = - 0.723, p = 0.004), and no other variables were eligible for inclusion in the multivariate analysis.
Conclusions. This study found that, the percentage of visceral fat had a positive correlation with PEFR in the elderly with underweight and normal BMI, while the percentage of fat had a negative correlation with PEFR in the elderly with overweight and obesity BMI. This study didn’t find any association between waist circumference and PEFR.
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