Table 1 Comparison of demographic and anesthesia related data between the three groups
Parameter | Normal saline (n = 72) | Ondansetron 0.05 mg/kg (n = 71) | Ondansetron 0.1 mg/kg (n = 72) | P-value |
|---|---|---|---|---|
Age (years)a | 31.8 (4.5) | 32.2 (5.5) | 32.7 (4.8) | 0.55 |
Weight (kg)a | 67.5 (9.6) | 68.7 (9.1) | 69.6 (8.9) | 0.39 |
Height (cm)a | 157.2 (5.5) | 156.9 (5.7) | 157.9 (5.2) | 0.48 |
Body mass index (kg/m2)a | 27.3 (3.5) | 27.9 (3.0) | 27.9 (3.2) | 0.47 |
Type of operation | ||||
 CS only | 49 (68.1) | 49 (69) | 46 (63.9) | 0.79 |
 CS with tubal resection | 23 (31.9) | 22 (31) | 26 (36.1) |  |
Site of spinal anesthesia | ||||
 L2–3 | 2 (2.8) | 0 (0) | 0 (0) | 0.33 |
 L3–4 | 70 (97.2) | 71 (100) | 72 (100) |  |
Number of blocks | ||||
 1 | 70 (97.2) | 70 (98.6) | 69 (95.8) | 0.87 |
 2 | 2 (2.8) | 1 (1.4) | 3 (4.2) |  |
Anesthesia levelb | T7 (T6–T8) | T6 (T6–T8) | T6 (T6–T8) | 0.33 |
Analgesia levelb | T4 (T3–T4) | T3 (T3–T4) | T4 (T3–T4) | 0.43 |
Premedication with metoclopramide | 25 (34.7) | 21 (29.6) | 21 (29.2) | 0.73 |
Premedication with ranitidine | 25 (34.7) | 21 (29.6) | 21 (29.2) | 0.73 |