Table 1.

Hospital, Demographic, and Practice Characteristics of Study Respondents and Nonrespondents

	Respondents		Non-respondents
Characteristics	n	%	n	%
Hospital characteristics
Hospital*
A	85	68	40	32
B	19	59	13	41
C	75	52	70	48
D	45	45	55	55
E	53	57	40	43
F	19	42	26	58
G	49	60	32	40
Size*
Small	19	59	13	41
Medium	241	52	223	48
Large	85	68	40	32
Teaching hospital
Yes	224	54	191	46
No	121	59	84	41
University hospital*
Yes	85	68	40	32
No	260	52	238	48
Physician characteristics
Female gender %	180	52	133	48
Mean age, ±SD	47.5 ± 11.6	47.3 ± 9.6
Mean years in practice, ±SD	20.4 ± 12.2	20.1 ± 9.9
Specialty group*
Generalists	272	60	180	40
Pulmonary/infectious diseases	29	45	35	55
Other specialists	44	42	61	58

^*P < .001 for differences between responders and nonresponders.