. 2014 Jan 23;9(4):756–763. doi: 10.2215/CJN.06980713

Table 3.

States with observed-to-expected adjusted rate ratios for hemorrhagic stroke, after successive adjustments, in the Medicare-eligible cohort

State	Unadjusted	Observed-to-Expected ARR (95% CI)
State	Unadjusted	Age	Age and Sex	Age, Sex, and Race/Ethnicity
CA	1.16 (1.02 to 1.33)^a	1.15 (1.01 to 1.30)^a	1.15 (1.01 to 1.31)^a	1.00 (0.90 to 1.12)
MD	1.27 (1.03 to 1.56)^a	1.25 (1.03 to 1.53)^a	1.25 (1.03 to 1.53)^a	1.11 (0.96 to 1.29)
NC	1.29 (1.08 to 1.52)^a	1.26 (1.07 to 1.49)^a	1.25 (1.06 to 1.48)^a	1.13 (0.99 to 1.29)
TX	1.22 (1.07 to 1.40)^a	1.20 (1.05 to 1.36)^a	1.19 (1.05 to 1.35)^a	1.02 (0.91 to 1.14)
OH	0.82 (0.68 to 0.99)^a	0.83 (0.69 to 1.00)	0.83 (0.69 to 1.00)	0.92 (0.80 to 1.06)
WI	0.77 (0.60 to 0.98)^a	0.79 (0.62 to 0.99)^a	0.79 (0.62 to 0.99)^a	0.91 (0.78 to 1.07)

Results not adjusted for the other covariates in Table 2. After adjustment for age, sex, and race/ethnicity, further covariate adjustment did not alter results. ARR, adjusted rate ratio; CI, confidence interval; CA, California; MD, Maryland; NC, North Carolina; TX, Texas; OH, Ohio; WI, Wisconsin.

Statistically significant at P<0.05.