Table 3.

Days per year: work loss, disability, and bed confinement in persons with COPD

Study	Base year	Mean days per yeara (patient subgroup)
		Absenteeism/work loss days
Strassels et al, 200113	1987	1.0 COPD-related (COPD group) 3.6 all cause (COPD group)
Ward et al, 20028	1993–1994	1.5 (chronic bronchitis group) 1.3 (emphysema group)
Mannino et al, 20029	1996	2.4 (COPD group) 8.2 (COPD + asthma group) 2.9 (no COPD/no asthma group)
Halpern et al, 200311	2000	18.7b (COPD group) 1.7 (caregivers)
Nair et al, 201214	2000–2007	0.3 hours/month, COPD-related (COPD group) 5.6 hours/month, all cause (COPD group) 3.8 hours/month, all cause (no COPD group)
DiBonaventura et al, 201212	2009	1.88 hours in past 7 days (COPD group) 0.77 hours in past 7 days (no COPD group)
Wang et al, 20035	Not stated	19.4b,c (persons with COPD)
		Presenteeism days
Wang et al, 20035	Not stated	27.5c (persons with COPD)
DiBonaventura et al, 201212	2009	4.82 hours in past 7 days (COPD group) 2.59 hours in past 7 days (no COPD group)
		Short-term disability days
Darkow et al, 200715	2001–2004	54.8 (COPD cases) 39.1 (controls)
Nair et al, 201214	2000–2007	0.3 days/month, COPD-related (COPD group) 1.0 days/month, all cause (COPD group) 0.6 days/month, all cause (no COPD group)
		Long-term disability days
Darkow et al, 200715	2001–2004	76.4 (COPD group) 85.9 (controls)
		Restricted activity days
Strassels et al, 200113	1987	15.9 COPD-related 27.5 all cause
Mannino, 20029	1996	31.0 (COPD group) 62.5 (COPD + asthma group) 15.3 (no COPD/no asthma group)
		Bed confinement days
Strassels et al, 200113	1987	16.1 COPD-related (COPD group) 24.4 all cause (COPD group)
Mannino, 20029	1996	13.1 (COPD group) 31.5 (COPD + asthma group) 6.1 (no COPD/no asthma)

Notes:

^aExcept as otherwise noted

^bincludes vacation days

^cvalue represents excess days due to COPD.

Abbreviation: COPD, chronic obstructive pulmonary disease.