Polymorphism of μ-Opioid Receptor Gene (OPRM1:c.118A>G) Might Not Protect against or Enhance Morphine-Induced Nausea or Vomiting

Table 3

Tests for the relations between morphine consumption versus genotype.

		Morphine consumption (mg)	P value
Genotype	A/A	22.6 (14.5, 34.1)	0.430
	A/G	23.1 (19.0, 40.1)
	G/G	26.1 (20.0, 35.6)
Genotype	A/A	22.6 (14.5, 34.1)	0.203
	A/G or G/G	24.0 (19.0, 38.1)
Genotype	A/A or A/G	23.0 (16.0, 36.7)	0.499
	G/G	26.1 (20.0, 35.6)