TABLE 2 ] .

Factors Associated With ICU vs Non-ICU Hospital Admission and Intermediate ICU vs Medical/Surgical/Other ICU Admission Among Patients Given a Diagnosis of Lung Cancer Between 1992 and 2005

Characteristic	ICU vs Non-ICU Hospitalization	P Value	Intermediate ICU vs Full-Service ICU Admission	P Value
Age
65-69 y	Reference	…	…	…
70-74 y	0.93 (0.89-0.96)	< .001	1.24 (1.06-1.19)	< .001
75-79 y	0.80 (0.77-0.83)	< .001	1.28 (1.21-1.36)	< .001
80-84 y	0.67 (0.64-0.70)	< .001	1.47 (1.37-1.57)	< .001
85-89 y	0.55 (0.51-0.58)	< .001	1.64 (1.50-1.79)	< .001
≥ 90 y	0.42 (0.38-0.46)	< .001	2.14 (1.84-2.48)	< .001
Sex
Women	Reference	…	…	…
Men	1.10 (1.07-1.12)	< .001	0.9 (0.87-0.94)	< .001
Race/ethnicity
Non-Hispanic white	Reference	…	…	…
Black	1.22 (1.16-1.28)	< .001	1.04 (0.97-1.12)	.29
Other	1.33 (1.26-1.41)	< .001	1.06 (0.98-1.25)	.14
Median annual income
< 15,000 USD	Reference	…	…	…
15,000-29,000 USD	1.47 (1.40-1.54)	< .001	1.55 (1.44-1.67)	< .001
30,000-44,990 USD	1.36 (1.31-1.41)	< .001	1.72 (1.61-1.83)	< .001
45,000-59,990 USD	1.48 (1.41-1.54)	< .001	2.02 (1.89-2.16)	< .001
60,000-74,990 USD	1.48 (1.41-1.56)	< .001	2.04 (1.89-2.20)	< .001
≥ 75,000 USD	1.50 (1.42-1.57)	< .001	2.05 (1.89-2.22)	< .001
Comorbidities
0	Reference	…	…	…
1	1.16 (1.11-1.21)	< .001	1.06 (0.99-1.13)	.07
2	1.27 (1.20-1.34)	< .001	1.08 (1.00-1.26)	.05
≥ 3	1.46 (1.38-1.54)	< .001	1.05 (0.96-1.13)	.29
Lung cancer histology
NSCLC	Reference	…	…	…
SCLC	0.91 (0.87-0.94)	< .001	1.02 (0.96-1.08)	.56
Other	0.79 (0.75-0.83)	< .001	1.0 (0.92-1.08)	.99
Stage at diagnosis
Local	Reference	…	…	…
Regional	0.90 (0.87-0.94)	< .001	0.90 (0.84-0.95)	< .001
Distant	0.61 (0.59-0.63)	< .001	0.91 (0.86-0.96)	< .001
Unknown	0.74 (0.70-0.79)	< .001	0.81 (0.75-0.89)	< .001

Data are presented as adjusted OR (95% CI). See Table 1 legend for expansion of abbreviations.