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

Table 9 Sensitivity analysis including all potential cases (7,795) matched to 5 controls

	Model A1 and A2	Model B	Model C
	Odds ratio	Odds ratio	Odds ratio
Contraceptives	1.92 (1.76-2.10)	2.00 (1.82-2.18)	1.97 (1.80-2.16)
VTE in relative	2.42 (2.24-2.60)	2.47 (2.29-2.66)	2.45 (2.27-2.64)
VTE in relative *Contraceptives			1.23 (0.84-1.82)

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