Table 3.

Multivariable analyses of factors associated with ICU use during final hospitalization^*

Variables	Model 1 Odds ratio (95% CI±)	Model 2 Odds ratio (95% CI)
Outpatient to inpatient Continuity of care
No	1.0	1.0
Yes	0.797 (0.745, 0.854)	0.749 (0.698, 0.804)
Seen by a hospitalist‡
No		1.0
Yes		1.567 (1.403,1.751)
Year of diagnosis (each increasing year)		1.058 (1.046, 1.071)
Age at diagnosis(each increasing year)		0.983 (0.977, 0.988)
Gender
Male		1.0
Female		0.948 (0.879, 1.023)
Race
Non-Hispanic White		1.0
Black		1.104 (0.972, 1.255)
Hispanic		1.289 (1.066, 1.560)
Others		1.264 (1.091, 1.463)
Low socioeconomic status
No		1.0
Yes		1.146 (1.034, 1.271)
Teaching hospital
No		1.0
Yes		0.959 (0.887, 1.038)
Co-morbidity score
0		1.0
1		1.139 (1.048, 1.238)
≥2		1.468 (1.345, 1.603)
Married
No		1.0
Yes		1.182 (1.093, 1.278)
Hospital length of stay		1.046 (1.041, 1.050)
Place of residence
Non-large metropolitan area		1.0
Large metropolitan area		1.603 (1.482, 1.733)

^*Analyses restricted to the 19,880 patients hospitalized in hospitals that possessed ICU beds.

^±CI = Confidence interval