Table 2

Adjusted association* between socio-environmental characteristics and physical activity amount and intensity in COPD patients

Time in physical activity of
moderate-to-vigorous intensity (min/day)
VMU/min
β (95% CI)p Valueβ (95% CI)p Value
Dog walking19 (7 to 32)<0.0188 (13–163)0.02
Grandparenting8 (−0.3 to 17)0.0655 (4–105)0.03
Age (years)−0.7 (−1.3 to −0.2)0.01−3.6 (−7 to −0.3)0.03
Sex: male3 (−9 to 15)0.6224 (−49 to 97)0.51
Low SES: IV, V10 (1 to 20)0.0386 (30 to 141)<0.01
Active smoking−20 (−30 to −10)<0.01−148 (−207 to −89)<0.01
Dyspnoea (mMRC, 0–4)−11 (−16 to −5)<0.01−59 (−90 to −28)<0.01
6MWD (m)0.1 (0.1–0.2)<0.011 (0.8 to 1.5)<0.01
Anxiety (HAD-A score, 0–21)1.1 (0.01 to 2.2)0.043 (−4 to 9)0.40
  • *Each column is a single linear regression multivariable model. Coefficients are expressed as minutes of time in activity or VMU/min (one at each time), per (i) each unit of the continuous covariates, or (ii) a change with respect to reference category in categorical covariates.

  • 6MWD, 6-min walking distance; HAD-A, Hospital Anxiety and Depression scale-Anxiety score; mMRC, modified Medical Research Council scale; SES, socio-economic status; VMU, vector magnitude units.