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HGS (mean, kg) stratified by sex in subjects with non-COPD and COPD by GOLD grades (bars represent 95% CIs).
Note: *P<0.05 when comparing the subjects with GOLD 3–4 with the subjects with non-COPD.
Abbreviations: HGS, hand grip strength; GOLD, Global Initiative for Chronic Obstructive Lung Disease; CI, confidence interval.
