Key result
Higher body mass index (≥30.0) was independently associated with a significantly increased risk of low vital capacity in both Japanese men (OR 3.46) and women (OR 2.84) during a health checkup.
Why the study?
Are higher body mass index and waist circumference associated with low vital capacity in Japanese health checkup participants?
Cross-Sectional (n=7,892)
No
Are higher body mass index and waist circumference associated with low vital capacity in Japanese health checkup participants?
Odds Ratio: 3.46 (95% CI 2.34–5.12)
p-value: p=<0.01
Obesity, as measured by BMI and waist circumference, is independently associated with restrictive pulmonary dysfunction (low vital capacity) in a Japanese population.
Obesity may associate with low %VC in checkup participants; cross-sectional data leaves causality and practice implications open.
OBJECTIVE: This study aimed to examine the associations between obesity and percentage vital capacity (%VC), as well as lifestyle-related disorders, among Japanese participants of a voluntary health checkup. METHODS: Subjects were 7,892 individuals who participated in a medical health checkup from January to December 2007. Multivariate logistic regression analysis was performed to assess associations between low %VC (<80) and body mass index (BMI) and waist circumference (WC), as well as lifestyle-related disorders. RESULTS: Medical histories of hypertension and dyslipidemia were more frequent in the low %VC group than in the normal %VC group in both sexes. In men, BMI was significantly associated with low %VC (25.0 ≤ C2 < 27.5, odds ratio (OR) = 2.10; 27.5 ≤ C3 < 30.0, OR = 2.23; C4 ≥ 30.0, OR = 3.46) relative to the first category (C1 < 25.0). A significant association was also observed between WC and low %VC (85 ≤ C2 < 90, OR = 1.40; 90 ≤ C3 < 95, OR = 1.55; 95 ≤ C4, OR = 2.51; relative to C1 < 85.0 cm). In women, BMI was significantly associated with low %VC in C3 and C4 (C3, OR = 2.05; C4, OR = 2.84), and WC was significantly associated with low %VC in C4 (C4, OR = 2.32). CONCLUSION: Our results suggest that obesity may be associated with restrictive pulmonary function and underscore the importance of maintaining ideal body weight for the prevention of restrictive pulmonary dysfunction.
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Gotö et al. (2014) conducted a cross-sectional in Low vital capacity (restrictive pulmonary dysfunction) (n=7,892). Obesity (Body mass index ≥30.0) vs. Normal body mass index (<25.0) was evaluated on Low percentage vital capacity (%VC <80%) (OR 3.46, 95% CI 2.34-5.12, p=<0.01). Higher body mass index (≥30.0) was independently associated with a significantly increased risk of low vital capacity in both Japanese men (OR 3.46) and women (OR 2.84) during a health checkup.
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