Table 3.
Role of Intraoperative Crystalloid Administration Expressed as Partitioned Tertiles on Postoperative Hospital Length of Stay Following Thoracic Surgerya
| Postoperative Hospital Length of Stay, days | ||||||||
|---|---|---|---|---|---|---|---|---|
| Crystalloid Administration Tertile, mL/kg/hr | Count | Minimum | 10% | 25% | Median | 75% | 90% | Maximum |
| <11.9 | 134 | 1.2 | 2.4 | 3.5 | 5.3 | 8.6 | 17.1 | 44.7 |
| ≥11.9 to <20.4 | 59 | 1.3 | 2.3 | 3.2 | 4.0 | 7.3 | 12.2 | 19.3 |
| ≥20.4 | 25 | 0.3 | 0.9 | 2.0 | 2.2 | 3.4 | 5.2 | 6.2 |
aThe patient count is 218 because 4 anesthetic records did not chart the use of intraoperative crystalloids.
Notes:
Primary partitioned cut-point 11.9 mL/kg/hr, logworth 3.7, P<0.0001. Secondary partitioned cut-point 20.4 mL/kg/hr, logworth 3.7, P<0.0001.
Nonparametric comparisons between tertile pairs utilizing the Wilcoxon method:
<11.9 mL/kg/hr tertile to ≥11.9-<20.4 mL/kg/hr tertile, Z=–2.3, 95% CI –2.1 to 0.06, P=0.0199;
≥20.4 mL/kg/hr tertile to ≥11.9-<20.4/ mL/kg/hr tertile, Z=–4.0, 95% CI –1.9 to –0.7, P<0.0001;
≥20.4 mL/kg/hr tertile to <11.9 mL/kg/hr tertile, Z=–5.7, 95% CI –4.7 to –1.4, P<0.0001.
P values <0.01 are statistically significant.