From: Longitudinal associations between sleep disturbance and disease severity in patients with COPD
 | Dependent Variable | Dependent Variable | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Independent variable | 2 yr FEV1% pp | 2 yr mMRC | 2 yr SGRQ | 2 yr ISWT distance | 2 yr RV pp | 2 yr DLCO pp | ||||||||||||
β | 95% CI | p-value | β | 95% CI | p-value | β | 95% CI | p-value | β | 95% CI | p-value | β | 95% CI | p-value | β | 95% CI | p-value | |
Model 1: | ||||||||||||||||||
 Baseline SD | −0.02 | (−6.86, 5.04) | 0.76 | 0.12 | (− 0.09, 0.62) | 0.14 | 0.18 | (0.84, 11.66) | 0.02 | −0.06 | (−66.22, 34.68) | 0.54 | 0.08 | (−6.17, 17.95) | 0.34 | −0.16 | (− 12.22, 0.03) | 0.05 |
Model 2: | ||||||||||||||||||
 Baseline SD | 0.03 | (−1.42, 3.73) | 0.38 | 0.11 | (−0.05, 0.55) | 0.10 | 0.01 | (−2.68, 3.51) | 0.79 | −0.02 | (−31.63, 23.28) | 0.76 | 0.03 | (− 5.08, 9.62) | 0.54 | −0.06 | (−5.32, 0.37) | 0.09 |
 Baseline DV | 0.91 | (0.86, 0.99) | < 0.001 | 0.57 | (0.49, 0.80) | < 0.001 | 0.85 | (0.77, 0.94) | < 0.001 | 0.80 | (0.68, 0.91) | < 0.001 | 0.79 | (0.72, 0.94) | < 0.001 | 0.89 | (0.80, 0.95) | < 0.001 |
 Age | −0.03 | (− 0.28, 0.16) | 0.46 | − 0.06 | (− 0.03, 0.01) | 0.34 | − 0.03 | (− 0.32, 0.15) | 0.47 | −0.13 | (−5.20, − 0.69) | 0.01 | −0.01 | (− 0.63, 0.52) | 0.85 | − 0.05 | (− 0.36, 0.08) | 0.20 |
 Sex | 0.01 | (−2.27, 2.86) | 0.82 | 0.02 | (−0.26, 0.35) | 0.77 | 0.00 | (−2.90, 3.14) | 0.94 | −0.02 | (− 35.08, 24.40) | 0.72 | − 0.03 | (−10.16, 4.96) | 0.50 | − 0.05 | (−4.95, 0.71) | 0.14 |
 Race | −0.07 | (−13.89, − 0.35) | 0.04 | 0.02 | (− 0.71, 0.88) | 0.82 | 0.02 | (−6.42, 9.47) | 0.71 | − 0.06 | (− 128.69, 30.14) | 0.22 | 0.01 | (−17.81, 20.61) | 0.89 | − 0.03 | (− 10.04, 4.90) | 0.50 |
 BMI | − 0.00 | (− 0.33, 0.32) | 0.97 | 0.12 | (− 0.00, 0.07) | 0.08 | 0.03 | (− 0.24, 0.52) | 0.48 | 0.03 | (− 2.72, 4.59) | 0.61 | −0.03 | (− 1.23, 0.66) | 0.55 | − 0.01 | (− 0.42, 0.34) | 0.84 |
 Smoking status | 0.03 | (− 1.42, 3.98) | 0.35 | 0.07 | (− 0.15, 0.47) | 0.31 | 0.10 | (0.38, 6.64) | 0.03 | 0.04 | (− 17.84, 39.32) | 0.46 | −0.06 | (−12.24, 3.01) | 0.23 | 0.01 | (− 2.55, 3.46) | 0.76 |