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Table 3 Age-adjusted incidence rates and rate ratios of hospitalized stroke stratified by gender for Asians/Pacific Islanders and non-Hispanic whites by stroke subtype and US region.*

From: Regional variation in hospitalization for stroke among Asians/Pacific Islanders in the United States: a nationwide retrospective cohort study

  Incidence Rate per 100,000 (95% CI) Incidence Rate Ratio (95% CI)
  Asians/Pacific Islanders Non-Hispanic Whites   
  Female Male Female Male Female Male
Ischemic Stroke       
   National 111 (102–120) 106 (98–114) 151 (149–153) 131 (129–133) 0.74 (0.72–0.76) 0.81 (0.78–0.83)
   Northeast 72 (50–94) 63 (46–80) 187 (183–191) 162 (158–166) 0.39 (0.36–0.41) 0.39 (0.36–0.42)
   Midwest 36 (14–58) 35 (18–52) 116 (113–119) 98 (95–101) 0.31 (0.27–0.36) 0.36 (0.31–0.41)
   South 79 (55–104) 84 (62–106) 171 (168–170) 158 (155–161) 0.46 (0.43–0.49) 0.53 (0.50–0.57)
   West 120 (109–131) 118 (108–128) 128 (125–131) 101 (98–104) 0.94 (0.91–0.98) 1.16 (1.12–1.21)
Heterogeneity p < 0.001 p < 0.001 p < 0.001 p < 0.001   
SAH       
   National 12 (9–15) 6 (4–8) 8 (7.6–8.4) 5 (4.7–5.3) 1.53 (1.41–1.65) 1.13 (1.00–1.27)
   Northeast 5 (0–10) 8 (3–13) 9 (7–10) 6 (5–7) 0.56 (0.41–0.74) 1.31 (1.05–1.63)
   Midwest 1 (0–2) 2 (0–5) 7 (6–8) 4 (3–5) 0.09 (0.02–0.23) 0.63 (0.34–1.07)
   South 2 (0–4) 1 (0–2) 8 (7–9) 5 (4–6) 0.28 (0.18–0.42) 0.12 (0.04–0.26)
   West 16 (12–20) 6 (4–8) 8 (7–9) 5 (4–6) 1.92 (1.73–2.14) 1.34 (1.12–1.60)
Heterogeneity p < 0.001 p = 0.008 p = 0.079 p < 0.001   
ICH       
   National 25 (21–29) 30 (26–34) 20 (19–21) 19 (18–20) 1.29 (1.22–1.36) 1.58 (1.50–1.67)
   Northeast 21 (11–25) 19 (11–27) 25 (24–26) 24 (23–25) 0.86 (0.75–0.98) 0.77 (0.66–0.88)
   Midwest 8 (0–18) 12 (2–22) 16 (15–17) 14 (13–15) 0.53 (0.40–0.70) 0.87 (0.68–1.11)
   South 20 (10–30) 25 (13–37) 22 (21–23) 21 (20–22) 0.94 (0.82–1.08) 1.21 (1.06–1.38)
   West 27 (22–32) 35 (30–40) 19 (18–20) 17 (16–18) 1.42 (1.31–1.54) 2.02 (1.87–2.18)
Heterogeneity p = 0.039 p = 0.001 p < 0.001 p < 0.001   
  1. * SAH = subarachnoid hemorrhage, ICH = intracerebral hemorrhage. Incidence rate ratio is for Asians/Pacific Islanders vs. non-Hispanic whites. Variances for adjusted rates were calculated and regional heterogeneity was tested using ANOVA.