Table 4. Factors Effecting Number and Score of Postoperative Nausea using GEE Model .

	(b)a		P -value		[CI:95%-Interval]
	Nausea Score	Number of Nausea	Nausea Score	Number of Nausea	Nausea Score	Number of Nausea
Administrating Capsules (Ginger or Placebo)	-0.497	-0.256	0.052	0.034	-0.999 – 0.004	-0.493 – -0.019
Administrating metoclopramide (2nd hour)	2.450	0.817	0.002	0.025	0.937 – 3.963	0.102 – 1.531
Administrating metoclopramide (4th hour)	3.387	2.081	0.005	<0.001	1.031 – 5.742	0.968 – 3.194
Constant	3.470	1.972	<0.001	<0.001	3.114 – 3.826	1.804 – 2.140

^a Abbreviations: b; B Coefficient