Table 3.

Multivariate odds ratios (95% CI) for association between risk factors and VTE

Predictor variables	Odds ratio (95% CI)	P value
Gender (women)	2.0 (1.0–3.7)	0.04
Personal history of VTE	40.0 (11.4–140.8)	<0.001
Family history of VTE	2.5 (1.1–5.7)	0.024
Hormonal/pregnancy	14.8 (4.5–48.1)	<0.001
Surgical	22.6 (6.4–80.3)	<0.001
Trauma or cast immobility	10.3 (4.4–24.0)	<0.001
International air travel	28.0 (7.8–100.4)	<0.001
Prolonged work- and computer-related seated immobility	2.8 (1.2–6.1)	0.013

¹Per decade older