. 2011 Apr 12;11:132. doi: 10.1186/1471-2407-11-132

Table 2.

Mortality by comorbidity

Comorbidity	HR (95%CI)^a
Cervical cancer
Elixhauser (1 unit)	1.25 (1.11-1.40)
Elixhauser 0	1.00^b
Elixhauser 1	1.29 (0.96-1.75)
Elixhauser 2	1.33 (0.83-2.13)
Elixhauser 3+	2.17 (1.32-3.56)
Other mortality (not cervical cancer)
Elixhauser (1 unit)	1.46 (1.18-1.79)
Elixhauser 0	1.00^b
Elixhauser 1	2.49 (1.39-4.44)
Elixhauser 2	2.62 (1.20-5.72)
Elixhauser 3+	2.76 (1.04-7.30)
Total mortality
Elixhauser (1 unit)	1.28 (1.15-1.41)
Elixhauser 0	1.00^b
Elixhauser 1	1.47 (1.13-1.92)
Elixhauser 2	1.48 (0.99-2.21)
Elixhauser 3+	2.20 (1.41-3.41)

^aAdjusted for age, year of diagnosis, stage, ethnicity, socioeconomic position, and urban/rural residence

^bReference category