Risk Factors

N (%)

Odds Ratio

95% Confidence Limits

Holm p

Prior PONV, By History of Major Surgery

Yes

No, Known to Have Had Surgery

No, Unknown Whether Had Surgery

248 (32.9)

125 (16.6)

381 (50.5)

9.02

0.35

1.00

(6.30, 12.90)

(0.23, 0.53)

<0.001

<0.001

History of Motion Sickness

Yes

No

264 (35.0)

490 (65.0)

1.51

1.00

(1.11, 2.06)

0.025

Primary Language

Spanish

English

57(7.6)

697 (92.4)

0.42

1.00

(0.25, 0.68)

0.002

Age

26 - 69 years

70 - 80 years

Current smoker

Yes

No

641 (85.0)

113 (15.0)

32 (4.2)

722 (95.8)

1.00

0.65

*

(0.43, 0.96)

0.062

*