http://orcid.org/0000-0002-9850-9520
Figures & data
Table 1. Characteristics of the study population, patients with low and normal physical performance based on the 6-minute walk distance (6MWD) and daily physical activity (PA).
Figure 1. Categorisation of the study population regarding nutritional status assessed by the body-mass index (a) and the Mini-Nutritional Assessment questionnaire (b).
Table 2. Comparison of nutritional status in patients with low and normal physical performance based on the 6-minute walk distance (6MWD) and daily physical activity (PA).
Table 3. Univariate and multivariate logistic regression analysis for the association with low exercise capacity defined by a 6-minute walk distance ≤ 350 m.
Figure 2. Receiver operating characteristic analysis of significant variables derived from the 2 multivariate logistic regression models and their capacity to predict low exercise capacity defined by the 6-minute walk distance ≤ 350 m (Model 1) and low physical activity defined by the daily step count ≤ 7,128 steps/day (Model 2). Model 1 includes age, moderate/severe exacerbations in the previous year, ratio of residual volume to total lung capacity, transfer coefficient of the lung for carbon monoxide (KCO), and mMRC dyspnoea level. Model 2 includes age, KCO, and mMRC dyspnoea level. AUC: area under the curve; SE: standard error; CI: confidence interval.
Table 4. Univariate and multivariate logistic regression analysis for the association with low physical activity defined by a daily step count ≤ 7,128 steps/day.