Table 3 Per cent increase in cause-specific hospital admissions for various sandstorm indicators
Ischaemic heart diseaseCerebrovascularAsthmaPneumonia
% Change in admissions comparing days with PM10 >115 μg/m3 to other days
    L03.08 (−10.85 to 19.19)−1.92 (−14.58 to 12.62)−8.82 (−23.88 to 9.22)−2.60 (−15.11 to 11.74)
    L1−4.55 (−17.83 to 0.89)−7.39 (−19.56 to 6.61)−2.51 (−18.20 to 16.18)−0.29 (−12.91 to 14.16)
    L216.17 (1.17 to 33.39)2.44 (−10.47 to 17.20)10.33 (−6.55 to 30.25)−4.41 (−16.72 to 9.72)
    L37.09 (−6.89 to 23.16)−1.75 (−14.30 to 12.63)12.86 (−4.27 to 33.07)8.97 (−4.37 to 24.18)
% Change in admissions comparing days with PM10 >100 μg/m3 at Yangmin background station to other days
    L00.41 (−14.75 to 18.28)−1.45 (−15.71 to 15.21)−1.32 (−19.04 to 20.28)−10.74 (−23.91 to 4.71)
    L1−10.96 (−25.14 to 5.92)4.07 (−10.60 to 21.15)0.90 (−16.99 to 22.65)2.20 (−12.03 to 18.74)
    L220.81 (3.80 to 40.61)−0.80 (−14.93 to 15.67)12.85 (−6.23 to 35.81)−1.85 (−15.72 to 14.31)
    L312.22 (−3.81 to 30.93)−6.41(−19.95 to 9.41)25.04 (4.62 to 49.45)12.97 (−2.14 to 30.40)
% Change in admissions per 13 μg/m3 increase in coarse PM
    L02.68 (0.03 to 5.40)0.24 (−2.13 to 2.68)0.96 (−2.02 to 4.04)−0.99 (−3.32 to 1.40)
    L13.11 (0.51 to 5.77)1.37 (−0.97 to 3.77)−0.33 (−3.28 to 2.71)−1.30 (−3.57 to 1.03)
    L21.60 (−0.98 to 4.25)0.96 (−1.36 to 3.33)0.16 (−2.78 to 3.19)−0.48(−2.75 to 1.85)
    L31.87 (−0.71 to 4.51)−0.14 (−2.47 to 2.25)0.14 (−2.81 to 3.18)1.09 (−1.18 to 3.42)
    L034.71 (0.88 to 8.68)0.54 (−2.84 to 4.04)0.43 (−3.78 to 4.82)0.03 (−3.26 to 3.44)
% Change in admissions per 0.75 increase in PM10/PM2.5
    L00.03 (−0.84 to 0.90)0.13 (−0.66 to 0.93)0.72 (−0.27 to 1.72)−0.28 (−1.10 to 0.54)
    L10.44 (−0.34 to 1.24)−0.49 (−1.43 to 0.46)−0.06 (−1.22 to 1.11)−0.32 (−1.09 to 0.47)
    L20.26 (−0.61 to 1.15)−0.24 (−1.12 to 0.64)−0.25 (−1.48 to 1.00)0.24 (−0.44 to 0.92)
    L31.17 (0.46 to 1.89)−0.68 (−1.66 to 0.31)−0.25 (−1.50 to 1.01)0.27 (−0.40 to 0.95)
    L030.52 (−1.04 to 2.10)−0.26 (−1.94 to 1.44)−0.27 (−2.55 to 2.05)0.01 (−1.40 to 1.44)
  • L0, same day; L1, previous day; L2, lag 2 days; L3, lag 3 days; L03, average of same day and three preceding days.

  • Statistically significant associations are shown in italic.