Table 3.
Comparison of outcomes between matched focal and control patients
| Outcome | Better
nursing resourced hospitals |
Worse
nursing resourced hospitals |
||
|---|---|---|---|---|
| General surgery | ||||
| Number of patients | 15 390 | 15 390 | ||
| % | % | OR (95% CI) | P value | |
| 30-day mortality | 4.54 | 5.23 | 0.84 (0.76 to 0.94) | 0.003 |
| 30-day complications | 70.10 | 69.62 | 1.03 (0.97 to 1.09) | 0.312 |
| 30-day failure-to-rescue | 7.34 | 8.64 | 0.85 (0.75 to 0.96) | 0.007 |
| 30-day readmission (or death) | 17.86 | 18.82 | 0.93 (0.88 to 0.99) | 0.022 |
| ICU admission | 25.13 | 25.23 | 0.99 (0.93 to 1.05) | 0.817 |
| m-estimate | m-estimate | Paired difference (95% CI) | P value | |
| Length of stay (days) | 7.31 | 7.31 | 0.01 (−0.11 to 0.13) | 0.861 |
| ICU length of stay (days) | 0.99 | 1.05 | −0.05 (−0.11 to 0.00) | 0.070 |
| 30-day cost ($) | 26 356 | 25 939 | 428 (4 to 853) | 0.048 |
| 30-day nurse-adjusted cost ($) | 27 067 | 25 744 | 1300 (868 to 1732) | <0.001 |
| Orthopaedic surgery | ||||
| Number of patients | 39 956 | 39 956 | ||
| % | % | OR (95% CI) | P value | |
| 30-day mortality | 1.58 | 1.91 | 0.81 (0.73 to 0.91) | <0.001 |
| 30-day complications | 56.19 | 58.15 | 0.91 (0.89 to 0.94) | <0.001 |
| 30-day failure-to-rescue | 3.52 | 4.18 | 0.76 (0.66 to 0.87) | <0.001 |
| 30-day readmission (or death) | 9.19 | 10.04 | 0.90 (0.86 to 0.95) | <0.001 |
| ICU admission | 7.05 | 5.93 | 1.24 (1.17 to 1.32) | <0.001 |
| m-estimate | m-estimate | Paired difference (95% CI) | P value | |
| Length of stay (days) | 3.68 | 3.77 | −0.09 (−0.12 to −0.06) | <0.001 |
| ICU length of stay (days) | 0.14 | 0.12 | 0.02 (0.01 to 0.03) | <0.001 |
| 30-day cost ($) | 16 484 | 16 254 | 200 (74 to 326) | 0.002 |
| 30-day nurse-adjusted cost ($) | 16 802 | 16 183 | 579 (450 to 708) | <0.001 |
| Vascular surgery | ||||
| Number of patients | 7369 | 7369 | ||
| % | % | OR (95% CI) | P value | |
| 30-day mortality | 5.09 | 5.39 | 0.93 (0.80 to 1.09) | 0.390 |
| 30-day complications | 66.77 | 64.76 | 1.13 (1.05 to 1.23) | 0.002 |
| 30-day failure-to-rescue | 8.96 | 10.05 | 0.89 (0.75 to 1.06) | 0.191 |
| 30-day readmission (or death) | 20.06 | 20.91 | 0.94 (0.87 to 1.03) | 0.172 |
| ICU admission | 55.52 | 46.49 | 1.56 (1.45 to 1.68) | <0.001 |
| m-estimate | m-estimate | Paired difference (95% CI) | P value | |
| Length of stay (days) | 5.02 | 5.03 | −0.02 (−0.17 to 0.13) | 0.782 |
| ICU length of stay (days) | 1.29 | 1.15 | 0.14 (0.07 to 0.21) | <0.001 |
| 30-day cost ($) | 23 824 | 23 062 | 716 (136 to 1297) | 0.015 |
| 30-day nurse-adjusted cost ($) | 24 253 | 22 864 | 1349 (761 to 1935) | <0.001 |
Note: P values for outcomes were calculated using McNemar test for binary outcomes and m-statistics for continuous ones.
ICU, intensive care unit.