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. 2025 Apr 22;20:1175–1187. doi: 10.2147/COPD.S487616

Table 3.

Conjoint Association of Daily Sitting Time (DST) and Leisure-Time Physical Activity (LTPA) with Sleep Disorder of COPD Population

Sleep Disorder Event N (Weighted) OR (95% CI)
LTPA, in/wk DST, h/d Model 1 Model 2 Model 3 Model 4
≥150 <4 45,631 1 [Reference] 1 [Reference] 1 [Reference] 1 [Reference]
4–8 1,412,066 5.00(1.33, 18.8) 4.23(1.12, 16.0) 5.88(1.80, 19.2) 3.49(0.89, 13.7)
>8 339,723 3.29(0.70, 15.5) 2.94(0.59, 14.6) 2.86(0.56, 14.7) 2.89(0.57, 14.7)
<150 <4 108,663 3.99(0.98, 16.2) 3.42(0.84, 13.9) 3.16(0.78, 12.9) 3.04(0.75, 12.4)
4–8 468,356 7.27(2.03, 26.1) 5.95(1.67, 21.2) 5.47(1.52, 19.6) 5.20(1.45, 18.6)
>8 1,168,804 9.75(2.93, 32.5) 7.44(2.23, 24.8) 6.50(1.93, 21.8) 5.88(1.80, 19.2)
≥150 <4 45,631 1 [Reference] 1 [Reference] 1 [Reference] 1 [Reference]
≥4 552,617 5.21 (1.44, 18.8) 4.10 (1.08, 15.6) 4.10 (1.08, 15.6) 3.83 (1.03, 14.2)
<150 <4 465,188 3.99 (0.98, 16.2) 3.14 (0.78, 12.7) 3.14 (0.78, 12.7) 3.01 (0.74, 12.2)
≥4 2,240,082 8.36 (2.47, 28.4) 5.79 (1.72, 19.5) 5.79 (1.72, 19.5) 5.37 (1.62, 17.8)

Notes: Model 1: Adjusted for age.group; Model 2: Multivariable model adjusted for sex, race, BMI, age; Model 3: Multivariable model adjusted for sex, race, BMI, age, comorbidity index; Model 4: Multivariable model adjusted for sex, race, BMI, age, comorbidity index, smoking, alcohol.

Abbreviations: OR, Odds Ratio; CI, Confidence Interval.