Table 3.

—Sensitivity Analyses for IRR of Hospitalization for Sepsis of Widowed, Single, and Legally Separated Subjects Compared With Married Subjects

Model	Widowed	Single	Legally Separated
Base model	1.38	3.5	1.5
	(1.17, 1.63)	(3.1, 3.9)	(1.2, 1.8)
Alternative case definition:	1.2	3.3	1.3
sepsis as ICD-9-CM	(1.02, 1.34)	(2.9, 3.7)	(1.1, 1.6)
code 995.91 only
Alternative numerator:	1.35	3.6	1.46
excluding readmission	(1.16, 1.59)	(3.17, 3.99)	(1.21, 1.75)
hospitalization
Alternative denominator:	1.25	3.14	1.32
excluding “married:	(1.06, 1.48)	(2.79, 3.54)	(1.09, 1.6)
spouse absent”
Alternative denominator:	1.36	4.8	1.38
US Census 2000	(1.19, 1.55)	(4.2, 5.46)	(1.22, 1.55)
population

All models include adjustment for age, sex, race/ethnicity. Data presented as IRR (95% CI). See the online supplement for details on each model. ICD-9-CM = International Classification of Diseases, 9th edition, Clinical Modification; IRR = incidence rate ratio.