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Table 3 Incidence rates, incidence rate ratios (IRRs), and hazard ratio estimates per 100,000 population per year (PY) for first asthma hospital admission or death. IRRs are age adjusted and rate ratios are subsequently Scottish Index for Multiple Deprivation (SIMD) and country of birth (COB) adjusted, with 95 % confidence intervals (CIs), by ethnic group, for the population in Scotland

From: Ethnic variations in asthma hospital admission, readmission and death: a retrospective, national cohort study of 4.62 million people in Scotland

Ethnic group First asthma eventa PY at riskb Age adjusted incidence rates (per 100,000 PY) and 95 % CIsc Age-adjusted IRRsd Age- and SIMD-adjusted IRRd Age- and CoB-adjusted IRRd Age-, SIMD- and CoB-adjusted IRRd
     IRR and 95 % CI IRR and 95 % CI IRR and 95 % CI IRR and 95 % CI
Males        
 White Scottish 41,955 16,325,930 257.0 1.00 (. .) 1.00 (. .) 1.00 (. .) 1.00 (. .)
 Other White British 3,005 1,244,330 249.7 (227.7–276.9) 0.97 (0.88–1.07) 1.02 (0.94–1.11) 0.92 (0.83–1.01) 0.97 (0.89–1.069)
 White Irish 390 160,090 250.2 (217.4–287.8) 0.97 (0.85–1.12) 0.93 (0.84–1.04) 0.91 (0.79–1.06) 0.88 (0.79–0.99)
 Other White 410 223,900 196.5 (164.8–238.4) 0.78 (0.64–0.92) 0.79 (0.69–0.90) 0.80 (0.67–0.96) 0.82 (0.72–0.93)
 Any mixed background 115 42,835 273.2 (235.0–320.4) 1.06 (0.91–1.24) 1.05 (0.86–1.28) 1.03 (0.89–1.19) 1.02 (0.83–1.26)
 Indian 160 50,445 344.5 (300.3–397.8) 1.34 (1.16–1.54) 1.43 (1.22–1.67) 1.37 (1.12–1.66) 1.45 (1.22–1.72)
 Pakistani 420 109,375 408.1 (336.3–501.8) 1.59 (1.30–1.94) 1.56 (1.37–1.78) 1.59 (1.29–1.95) 1.56 (1.37–1.78)
 Other South Asian 80 27,265 327.3 (244.6–441.3) 1.27 (0.94–1.71) 1.25 (0.99–1.57) 1.31 (1.02–1.71) 1.28 (1.01–1.62)
 African Origin 50 25,020 225.3 (178.4–286.6) 0.88 (0.69–1.11) 0.83 (0.64–1.01) 0.90 (0.67–1.22) 0.85 (0.65–1.11)
 Chinese 75 52,825 159.1 (105.6–241.5) 0.62 (0.41–0.94) 0.65 (050–0.84) 0.64 (0.44–0.94) 0.67 (0.52–0.86)
 All Other Ethnic Group 50 25,650 223.5 (162.1–310.6) 0.87 (0.63–1.20) 0.86 (0.66–1.13) 0.93 (0.63–1.36) 0.91 (0.68–1.22)
 Ethnic group First asthma eventa PY at riskb Age-adjusted incidence rates (for 100,000 PY)c Age-adjusted IRRd Age- and SIMD-adjusted IRRd Age- and CoB-adjusted IRRd Age-, SIMD- and CoB-adjusted IRRd
     IRR and 95 % CI IRR and 95 % CI IRR and 95 % CI IRR and 95 % CI
Females        
 White Scottish 60,330 17,830,550 338.3 1.00 (. .) 1.00 (. .) 1.00 (. .) 1.00 (. .)
 Other White British 4,550 1,334,530 365.4 (339.3–397.6) 1.08 (1.00–1.17) 1.14 (1.06–1.23) 1.08 (1.00–1.18) 1.16 (1.08–1.25)
 White Irish 590 178,670 335.9 (295.7–387.0) 0.99 (0.87–1.14) 0.94 (0.84–1.05) 1.00 (0.86–1.15) 0.96 (0.85–1.08)
 Other White 620 259,410 271.6 (237.3–315.5) 0.80 (0.70–0.93) 0.84 (0.74–0.95) 0.80 (0.68–0.95) 0.83 (0.73–0.93)
 Any mixed background 150 46,190 424.1 (369.5–489.7) 1.25 (1.09–1.44) 1.22 (1.06–1.42) 1.25 (1.09–1.45) 1.23 (1.07–1.42)
 Indian 150 45,810 398.1 (311.2–512.3) 1.18 (0.92–1.51) 1.26 (1.04–1.53) 1.18 (0.92–1.51) 1.26 (1.04–1.53)
 Pakistani 420 107,485 506.1 (361.1–718.0) 1.50 (1.06–2.11) 1.45 (1.19–1.78) 1.50 (1.09–2.06) 1.45 (1.21–1.75)
 Other South Asian 75 22,205 418.9 (318.9–553.6) 1.24 (0.94–1.63) 1.22 (0.98–1.51) 1.24 (0.94. 1.62) 1.21 (0.98–1.49)
 African Origin 70 22,215 390.4 (309.7–495.0) 1.15 (0.91–1.46) 1.08 (0.86–1.37) 1.15 (0.89–1.50) 1.08 (0.85–1.36)
 Chinese 70 52,660 165.3 (132.5–207.5) 0.49 (0.39–0.61) 0.52 (0.42–0.64) 0.49 (0.38–0.62) 0.51 (0.41–0.63)
 All Other Ethnic Group 55 29,145 230.6 (170.4–314.1) 0.68 (0.50–0.93) 0.69 (0.54–0.89) 0.68 (0.49–0.94) 0.68 (0.53–0.88)
  1. aFirst event within the period 1st May 2001 to 30th April 2010, with no look back previous to this period
  2. bOver 9-year period between 1st May 2001 and 30th April 2010
  3. cPoisson rates are derived with age adjustment using the true White Scottish rate
  4. dIncidence rate ratios are calculated using Poisson regression models with robust variance. The White Scottish population at the 2001 census is the reference population