Table 3.
Variables | Univariate analysis | Multivariable analysis | ||||
---|---|---|---|---|---|---|
OR | 95 % CI | P | OR | 95 % CI | P | |
Age (per year increase) | 1.077 | 1.049–1.105 | < 0.001 | 1.079 | 1.050–1.110 | < 0.001 |
Cognitive impairment (yes) a | 2.126 | 1.578–2.864 | < 0.001 | 2.093 | 1.526–2.870 | < 0.001 |
ASA classification (per grade increase) | 1.440 | 1.065–1.946 | 0.018 | 1.092 | 0.782–1.524 | 0.606 |
Malnutrition (yes)b | 1.562 | 1.190–2.051 | 0.001 | 1.055 | 0.767–1.452 | 0.742 |
Duration of surgery (per hour increase) | 1.107 | 0.989–1.239 | 0.078 | 1.130 | 0.998–1.279 | 0.054 |
Allogeneic blood transfusion (yes) | 2.179 | 1.369–3.469 | 0.001 | 1.782 | 1.076–2.952 | 0.025 |
Temperature < 36 °C at PACU admission (yes) | 2.429 | 1.828–3.228 | < 0.001 | 2.558 | 1.893–3.456 | < 0.001 |
Average NRS pain score in PCAU (per score increase) | 1.257 | 1.148–1.377 | < 0.001 | 1.242 | 1.128–1.368 | < 0.001 |
ASA American Society of Anesthesiologists, PACU post-anesthesia care unit, NRS numeric rating score, OR odds ratio, CI confidence interval
a Cognitive impairment was defined as Mini-Mental State Examination (MMSE) score less than 27
b Malnutrition was defined as NRS2002 score ≥ 3