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Table 4 Association of OPRM A118A>G with nausea and vomiting episodes

From: Ethnicity and OPRM variant independently predict pain perception and patient-controlled analgesia usage for post-operative pain

Mean nausea score (SD)

Chinese (n = 617)

Malays (n = 241)

Indians (n = 136)

All (n = 994)

AA (n = 389)

0.025 (0.096)

0.043 (0.141)

0.062 (0.196)

0.033 (0.006)

AG (n = 435)

0.015 (0.069)

0.044 (0.170)

0.050 (0.156)

0.029 (0.006)

GG (n = 170)

0.012 (0.067)

0.003 (0.022)

0.012 (0.063)

0.009 (0.004)

No. of vomiting episodes (SD)

AA (n = 389)

0.160 (0.702)

0.060 (0.307)

0.360 (0.892)

0.166 (0.035)

AG (n = 435)

0.070 (0.358)

0.150 (0.560)

0.070 (2.004)

0.117 (0.042)

GG (n = 170)

0.060 (0.357)

0 (0)

0.260 (0.378)

0.041 (0.023)