Multivariate linear regression model performed to identify variables predicting metabolic equivalents (METs; dependent variables).
| . | Multivariate unadjusteda . | Multivariate adjustedb,c . | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Variables . | β . | SE . | 95% CI for β . | t . | p . | f 2 . | β . | SE . | 95% CI for β . | t . | p . | f 2 . |
| ABI | 2.83 | 1.03 | 0.75–4.91 | 2.76 | 0.009 | 0.32 | 2.59 | 1.03 | 0.51–4.67 | 2.52 | 0.016 | 0.56 |
| 6MWT, m walked | 0.00 | 0.00 | 0.00–0.01 | 2.18 | 0.036 | 0.15 | 0.00 | 0.00 | 0.00–0.01 | 1.93 | 0.061 | 0.38 |
| mMRC, dyspnoea score | –0.51 | 0.24 | −1.00–0.01 | –2.08 | 0.045 | 0.19 | –0.51 | 0.24 | −1.00–0.02 | –2.11 | 0.042 | 0.44 |
| . | Multivariate unadjusteda . | Multivariate adjustedb,c . | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Variables . | β . | SE . | 95% CI for β . | t . | p . | f 2 . | β . | SE . | 95% CI for β . | t . | p . | f 2 . |
| ABI | 2.83 | 1.03 | 0.75–4.91 | 2.76 | 0.009 | 0.32 | 2.59 | 1.03 | 0.51–4.67 | 2.52 | 0.016 | 0.56 |
| 6MWT, m walked | 0.00 | 0.00 | 0.00–0.01 | 2.18 | 0.036 | 0.15 | 0.00 | 0.00 | 0.00–0.01 | 1.93 | 0.061 | 0.38 |
| mMRC, dyspnoea score | –0.51 | 0.24 | −1.00–0.01 | –2.08 | 0.045 | 0.19 | –0.51 | 0.24 | −1.00–0.02 | –2.11 | 0.042 | 0.44 |
6MWT: six-minute walking test; ABI: ankle-brachial index; CI: confidence interval; mMRC: modified Medical Research Council; SE: standard error.
Model summary: R = 0.631, R2 = 0.398, adjusted R2 = 0.350, SE of the estimate = 1.178, p < 0.001; badjusted for age, sex and smoking habit; cmodel summary: R = 0.696, R2 = 0.484, adjusted R2 = 0.396, SE of the estimate = 1.136, p < 0.001.
Multivariate linear regression model performed to identify variables predicting metabolic equivalents (METs; dependent variables).
| . | Multivariate unadjusteda . | Multivariate adjustedb,c . | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Variables . | β . | SE . | 95% CI for β . | t . | p . | f 2 . | β . | SE . | 95% CI for β . | t . | p . | f 2 . |
| ABI | 2.83 | 1.03 | 0.75–4.91 | 2.76 | 0.009 | 0.32 | 2.59 | 1.03 | 0.51–4.67 | 2.52 | 0.016 | 0.56 |
| 6MWT, m walked | 0.00 | 0.00 | 0.00–0.01 | 2.18 | 0.036 | 0.15 | 0.00 | 0.00 | 0.00–0.01 | 1.93 | 0.061 | 0.38 |
| mMRC, dyspnoea score | –0.51 | 0.24 | −1.00–0.01 | –2.08 | 0.045 | 0.19 | –0.51 | 0.24 | −1.00–0.02 | –2.11 | 0.042 | 0.44 |
| . | Multivariate unadjusteda . | Multivariate adjustedb,c . | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Variables . | β . | SE . | 95% CI for β . | t . | p . | f 2 . | β . | SE . | 95% CI for β . | t . | p . | f 2 . |
| ABI | 2.83 | 1.03 | 0.75–4.91 | 2.76 | 0.009 | 0.32 | 2.59 | 1.03 | 0.51–4.67 | 2.52 | 0.016 | 0.56 |
| 6MWT, m walked | 0.00 | 0.00 | 0.00–0.01 | 2.18 | 0.036 | 0.15 | 0.00 | 0.00 | 0.00–0.01 | 1.93 | 0.061 | 0.38 |
| mMRC, dyspnoea score | –0.51 | 0.24 | −1.00–0.01 | –2.08 | 0.045 | 0.19 | –0.51 | 0.24 | −1.00–0.02 | –2.11 | 0.042 | 0.44 |
6MWT: six-minute walking test; ABI: ankle-brachial index; CI: confidence interval; mMRC: modified Medical Research Council; SE: standard error.
Model summary: R = 0.631, R2 = 0.398, adjusted R2 = 0.350, SE of the estimate = 1.178, p < 0.001; badjusted for age, sex and smoking habit; cmodel summary: R = 0.696, R2 = 0.484, adjusted R2 = 0.396, SE of the estimate = 1.136, p < 0.001.
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