Comparison of Low-Dose Promethazine and Dexamethasone against Ondansetron Monotherapy Given as Antiemetic Prophylaxis during Myomectomy Under Spinal Anesthesia: A Randomized Clinical Trial

Table 3

Incidence of early and late PONV in both study groups.

PONV		Group A	Group B	Total	-value	Sig.
		N = 35	N = 35
		Number (%)	Number (%)
Early	30 min	2 (5.7)	6 (17.1)	8 (11.4)	0.259	NS
	1 hr	1 (2.9)	1 (2.9)	2 (2.9)	0.368	NS
	2 hr	2 (5.7)	2 (5.7)	4 (5.7)	0.513	NS
	3 hr	0 (0.0)	2 (5.7)	2 (2.9)	0.493	NS
	Total	5 (14.3)	11 (31.4)	16 (45.7)	0.149	NS
Late	4 hr	1 (2.9)	4 (11.5)	5 (7.1)	0.356	NS
	6 hr	1 (2.9)	2 (5.7)	3 (4.3)	1.000	NS
	12 hr	0 (0.0)	0 (0.0)	0 (0.0)	1.000	NS
	24 hr	0 (2.9)	0 (0.0)	0 (0.0)	1.000	NS
	Total	2 (5.7)	6 (17.1)	8 (11.4)	0.259	NS
	Overall	7 (20)	17 (48.6)	24 (34.3)	0.022	S

NS – not significant; S – significant.