Table 1.
Demographic data and risk factors for PONV
| Parameter | Dexa-Ra (n = 135) |
Ra (n = 134) |
Significance (p value) |
|---|---|---|---|
| Demographic data* | |||
| Age (years) | 72.0 (6.7) | 72.0 (6.2) | 0.978 |
| Sex (female) | 117 (87%) | 119 (89%) | 0.364 |
| Height (cm) | 152.8 (7.4) | 152.6 (7.1) | 0.865 |
| Weight (kg) | 61.5 (9.7) | 60.9 (9.3) | 0.606 |
| BMI (kg/m2) | 26.3 (3.6) | 26.1 (3.2) | 0.559 |
| Risk factors for PONV | |||
| Duration of surgery (minutes) | 106.8 (14.0) | 107.0 (14.1) | 0.917 |
| Risk factors identified† | 0.819 | ||
| With one factor | 8 (4) | 5 (6) | |
| With two factors | 12 (9) | 12 (9) | |
| With three factors | 112 (86) | 115 (83) | |
| With four factors | 3 (2) | 2 (2) | |
| Calculated mean risk‡ | 56.3 (11.2) | 57.0 (9.7) | 0.575 |
PONV = postoperative nausea and vomiting; Dexa-Ra = dexamethasone and ramosetron; Ra = ramosetron; * data presented as means (SDs) with the exception for gender, which is presented as number of female patients (percentage); †data presented as number of patients with risk factors with proportions in parentheses, risk factors were described by Apfel et al. [3]; ‡data presented as calculated mean risk for PONV, determined using the simplified risk scoring system of Apfel et al., with SDs in parentheses [3].