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. 2020 Nov 2;6(4):00214-2020. doi: 10.1183/23120541.00214-2020

FIGURE 2.

FIGURE 2

a) Estimated forced vital capacity (FVC) z-scores and 95% confidence intervals (CIs) in men and women as a function of waist circumference (WC) predicated on body mass index (BMI) values of 20, 25 and 30 kg·m–2 (chosen to correspond to the widely used cut-offs for the normal weight, overweight and obese categories). b) Estimated FVC z-scores and 95% CIs in men and women as a function of BMI predicated on WC (in cm) corresponding roughly to the gender specific 10th, 50th and 90th percentiles rounded to the nearest multiple of five. All estimates were adjusted for smoking status and education.