Family history of venous thromboembolism is a risk factor for venous thromboembolism in combined oral contraceptive users: a nationwide case-control study

Table 5 Test for additive interaction between family history of VTE and COC use

	Beta (SE)
Contraceptives	0.12 (0.009)
VTE in relative	0.14 (0.011)
Interaction between VTE in relative and Contraceptives	0.05 (0.043)^a

Results from a regression model with an identity link for 2,311 females (age 15-49 years) with VTE in the Swedish population and their matched controls
^aThere was no significant additive interaction between family history of VTE and COC use, p-value was 0.27

ISSN: 1477-9560