From: Trend in the severity of illness and hospital mortality rates of ICU patients over a 10-year period
Year | Predicted death [% (95% CI)] | Observed death [% (95% CI)] | SMR (95% CI) |
---|---|---|---|
1995 | 5.9 (5.6–6.3) | 6.8 (6.0–7.8) | 1.16(1.01–1.32) |
1996 | 6.6 (6.3–6.9) | 7.2 (6.5–7.9) | 1.09(0.98–1.20) |
1997 | 7.0 (6.7–7.3) | 7.8 (7.1–8.5) | 1.11(1.01–1.22) |
1998 | 8.3 (7.9–8.6) | 9.2(8.5–10.0) | 1.11(1.01–1.21) |
1999 | 9.0 (8.6–9.4) | 10.7(9.9–11.7) | 1.19(1.09–1.30) |
2000 | 10.8(10.3–11.2) | 10.8(9.9–11.8) | 1.00(0.91–1.10) |
2001 | 12.4(11.9–12.9) | 12.7(11.8–13.7) | 1.02(0.94–1.11) |
2002 | 12.9(12.4–13.5) | 12.7(11.4–13.4) | 0.96(0.88–1.04) |
2003 | 12.8(12.3–13.3) | 11.2(10.4–12.2) | 0.88(0.81–0.95) |
2004 | 12.1(11.7–12.7) | 8.8 (8.0–9.7) | 0.73(0.66–0.80) |