Table 2.

Hospital length of stay (for readmission)

	Usual care	SPACE for COPD	Between-group difference
Intention-to-treat
All-cause	16.5 (3.8–39.8)	9.0 (1.0–30.0)	P=0.218
Respiratory	15.0 (3.5–32.0)	12.0 (9.0–33.8)	P=0.341
Nonrespiratory	27.0 (7.5–33.8)	1.0 (1.0–3.0)	P=0.067
Per protocol
All-cause	13.0 (3.3–25.5)	9.0 (1.0–27.8)	P=0.381
Respiratory	11.0 (3.0–21.0)	11.0 (8.8–37.5)	P=0.597
Nonrespiratory	27.0 (7.5–33.8)	1.0 (0.8–2.0)	P=0.044

Note: Values are median (interquartile range) days.

Abbreviation: SPACE, Self-management Program of Activity, Coping, and Education.