Table 1.
Comparison of preintervention and postintervention groups in the neonatal intensive care unit (NICU) with potential confounders.
| All values by month | NICU preintervention (Oct 2015-Oct 2016), mean (SD) | NICU postintervention (Nov 2016-May 2017), mean (SD) | P value | ||
| Severity of illness (SOI) | 2.3 (0.2) | 2.5 (0.1) | .008 | ||
| Risk of mortality (ROM) | 1.3 (0.1) | 1.4 (0.1) | .007 | ||
| Case mix index (CMI) | 3.2 (0.2) | 3.5 (0.2) | .009 | ||
| Acuity indicators |
|
|
|
||
|
|
Average length of stay | 19.2 (1.3) | 21.1 (3.9) | .12 | |
|
|
Total patient days | 1329.9 (159.1) | 1328.1 (116.6) | .98 | |
|
|
|
≤1000 g | 351.0 (58.7) | 282.3 (61.2) | .02 |
|
|
|
1001-1500 g | 189.6 (67.8) | 237.0 (46.9) | .12 |
|
|
|
1501-2500 g | 442.4 (111.8) | 431.7 (84.8) | .83 |
|
|
|
>2500 g | 346.9 (55.8) | 377.1 (96.3) | .38 |
|
|
Admissions-total | 73.4 (7.8) | 68.4 (9.5) | .22 | |
|
|
|
<1000 g | 2.9 (2.4) | 3.0 (1.2) | .94 |
|
|
|
1000-1499 g | 3.4 (1.5) | 4.40 (3.3) | .34 |
|
|
|
1500-1999 g | 9.1 (2.9) | 10.0 (2.9) | .51 |
|
|
|
2000-2499 g | 14.9 (3.0) | 11.0 (3.9) | .03 |
|
|
|
≥2500 g | 43.2 (5.8) | 40.0 (5.4) | .22 |
|
|
ADCa (Level 2 and Level 3 combined) | 44.1 (4.1) | 43.9 (3.5) | .88 | |
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|
|
Level 2 | 25.0 (2.2) | 25.3 (3.0) | .79 |
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|
|
Level 3 | 19.2 (4.3) | 18.6 (2.7) | .75 |
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|
CCH-SCNb | 5.7 (1.7) | 4.7 (1.3) | .19 | |
aADC: average daily census.
bCCH-SCN: Cape Coral Hospital Special Care Nursery.