Table 1.
Patient characteristics and outcomes by group
| Characteristic | PONV group (N=22) |
No PONV group (N=76) |
P value |
| Age (years) | 73 [61–78] | 72 [67–75] | 0.682 |
| Sex (female, N (%)) | 17 (77.3%) | 18 (23.7%) | <0.001 |
| Height (cm) | 153.4 [149.9–159.8] | 161.0 [157.1–167.8] | <0.001 |
| Weight (kg) | 54.0 [46.4–59.3] | 60.1 [55.4–65.0] | 0.002 |
| Body mass index (kg/m2) | 21.9 [20.7–23.5] | 22.9 [20.6–24.9] | 0.263 |
| Anxiety scorea |
6.5 [4.0–9.8] | 4.0 [2.0–7.0] | 0.021 |
| Depression scorea |
6.0 [2.5–8.0] | 4.0 [2.0–8.0] | 0.394 |
| Operation time (min) | 113.5 [83.3–139.8] | 131.5 [92.3–148.3] | 0.252 |
| Smoking history | 6 (27.3%) | 56 (73.7%) | <0.001 |
| Fentanyl (mcg/kg)b |
6.7 (5.0–8.1) | 6.2 (4.9–7.3) | 0.117 |
| Need postoperative fentanylc |
1 (4.5%) | 6 (7.9%) | 0.946 |
| History of PONV | 2 (9.1%) | 5 (6.6%) | >0.999 |
Data are reported as number (%) or median [interquartile range, Q1–Q3].
Characteristics were compared between patients with and without PONV using Mann-Whitney U test and chi-square test with Yates’ continuity correction.
PONV: postoperative nausea and vomiting
a Anxiety and depression scores were quantified using the Hospital Anxiety and Depression Scale.
b Intraoperative fentanyl use.
c The number of patients who required postoperative fentanyl.