Table 4

Average crude rates by age group for lowest and highest mortality hospital quartiles in the early and late periods

Lowest quartileHighest quartile
AgeCrude rate
% (95% CI)
OR cf <50OR cf previous ageAgeCrude rate
% (95% CI)
OR cf <50OR cf previous ageOR cf lowest quartile
Early period Early period
<503.9 (3.0 to 4.8)11<507.3 (5.9 to 8.9)111.94
50–5911.3 (9.8 to 12.9)3.13.150–5918.7 (16.5 to 21.1)2.92.61.81
60–6922.8 (20.8 to 24.9)7.32.360–6932.9 (30.4 to 35.5)6.21.81.66
70–7934.3 (32.2 to 36.4)12.91.870–7945.0 (42.6 to 47.4)10.41.41.57
80–8942.8 (40.7 to 44.9)18.41.480–8952.6 (50.4 to 54.8)14.11.21.48
90+48.4 (44.8 to 52.0)23.11.390+59.5 (55.9 to 63.1)18.71.11.57
Late period Late period
<501.1 (0.3 to 2.8)11<503.5 (1.8 to 6.1)113.26
50–594.6 (2.2 to 8.3)4.34.350–5914.1 (10.1 to 19.1)4.54.03.40
60–6913.8 (9.7 to 18.9)14.43.360–6922.9 (18.5 to 27.7)8.21.61.86
70–7917.4 (13.5 to 21.9)18.91.370–7936.5 (32.2 to 40.9)15.81.62.73
80–8925.3 (21.2 to 29.8)30.51.680–8945.4 (41.4 to 49.4)22.91.22.46
90+33.8 (26.9 to 41.2)45.91.590+48.6 (42.1 to 55.2)26.11.11.85
  • cf, compared with.