Table 3. Adjusted Incidence Rate Ratios... | American Society of Hematology

Table 3.

Adjusted Incidence Rate Ratios for Potential Genetic and Acquired Risk Factors (Multivariate by Poisson Analysis)

Risk Factor	Incidence Rate Ratio (95% CI)^3-150
Antithrombin deficiency	25.9 (3.1-216)
20210 A allele	4.6 (0.9-21.4)
FVL	7.2 (1.9-27.6)
Surgery, immobilization^3-151	10.9 (3.9-29.8)
Pregnancy and postpartum state^3-152	48.6 (9.1-260.7)
Use of oral anticonceptives^3-152	5.3 (0.6-48.1)

Risk Factor	Incidence Rate Ratio (95% CI)^3-150
Antithrombin deficiency	25.9 (3.1-216)
20210 A allele	4.6 (0.9-21.4)
FVL	7.2 (1.9-27.6)
Surgery, immobilization^3-151	10.9 (3.9-29.8)
Pregnancy and postpartum state^3-152	48.6 (9.1-260.7)
Use of oral anticonceptives^3-152	5.3 (0.6-48.1)

The incidence rate ratios are adjusted for age, calendar time, and sex.

Surgery, trauma, plaster cast, hospital admittance, immobilization more than 2 weeks before thrombosis.

Women only in regression analysis.