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
| 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) |
aFirst event within the period 1st May 2001 to 30th April 2010, with no look back previous to this period
bOver 9-year period between 1st May 2001 and 30th April 2010
cPoisson rates are derived with age adjustment using the true White Scottish rate
dIncidence rate ratios are calculated using Poisson regression models with robust variance. The White Scottish population at the 2001 census is the reference population