Table 5. Multivariate factor logistic regression analysis of VTE risk factors.

Factor	Type	β	SE	Wald	P	OR	95% CI
IL-1 rs1143634	GG						Reference
	GA	–0.169	0.216	0.614	0.433	0.844	0.553–1.289
	AA	–0.1	0.719	0.019	0.890	0.905	0.221–3.705
IL-1 rs1800587	GG						Reference
	GA	–0.025	0.186	0.018	0.894	0.976	0.678–1.404
	AA	–1.488	0.57	6.822	0.009	0.226	0.074–0.890
IL-1 rs2234650	CC						Reference
	CT	0.069	0.18	0.145	0.703	1.071	0.753–1.524
	TT	0.735	0.33	4.950	0.026	2.086	1.091–3.985
SSA rs11603089	AA						Reference
	AG	–0.073	0.187	0.151	0.697	0.930	0.644–1.342
	GG	0.132	0.463	0.081	0.776	1.141	0.460–2.828
TNF-a rs1800629	GG						Reference
	GA	0.006	0.217	0.001	0.978	1.006	0.658–1.539
	AA	–0.042	0.715	0.004	0.953	0.958	0.236–3.895

VTE, venous thromboembolism; SAA, serum amyloid A protein; IL-1, interleukin-1; TNF-a, tumor necrosis factor-a; OR, odds ratio.