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Multivariable regression analysis (maximum likelihood estimation): intensive care unit and hospital mortalitya |
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| Period II (n = 3,322)b 1 Mar 02 to 30 Jun 03 |
Period III (n = 4,786)b 1 Jul 03 to 28 Feb 05 |
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| OR (95% CI) |
P value |
OR (95% CI) |
P value |
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| Entire ICU population |
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| n = 3,310 |
n = 4,739 |
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| ICU mortality |
1.20 (0.98, 1.47) |
0.071 |
1.26 (1.04, 1.53) |
0.019 |
| Hospital mortality |
1.11 (0.93, 1.31) |
0.248 |
1.15 (0.98, 1.35) |
0.088 |
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| Entire ICU population, ICU LOS ≤ 3 days |
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| n = 1,808 |
n = 2,619 |
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| ICU mortality |
1.21 (0.84, 1.74) |
0.317 |
1.65 (1.16, 2.33) |
0.005 |
| Hospital mortality |
1.17 (0.87, 1.57) |
0.288 |
1.47 (1.11, 1.93) |
0.007 |
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| Entire ICU population, ICU LOS >3 days |
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| n = 1,484 |
n = 2,033 |
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| ICU mortality |
1.21 (0.95, 1.54) |
0.125 |
1.14 (0.90, 1.44) |
0.268 |
| Hospital mortality |
1.08 (0.87, 1.33) |
0.501 |
1.01 (0.83, 1.24) |
0.918 |
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aAll estimates are adjusted for admission age, history of diabetes, Simplified Acute Physiology Score (SAPS) II with age points removed, mechanical ventilation at ICU admission, and admitting service. bPeriod I is used as reference category for all analyses (n = 2,366 for the entire ICU population, n = 1,282 for patients in ICU ≤3 days, and n = 1,067 for patients in ICU >3 days). CI, confidence interval; ICU, intensive care unit; LOS, length of stay; OR, odds ratio. | ||||
Treggiari et al. Critical Care 2008 12:R29 doi:10.1186/cc6807 |
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