Table 3.

Correlates of use tier 3 method (no withdrawal) or use of withdrawal (only or with Tier 3 method) compared to use of a tier 1 or 2 method (no withdrawal)^a among sexually-active women not desiring pregnancy, Hanoi, Vietnam (N = 489)^b

	Tier 3 method, no withdrawal		Withdrawal only or with Tier 3 method
	aOR	(95% CI)	aOR	(95% CI)
Age in years	1.0	(0.9, 1.0)	1.0	(1.0, 1.0)
Husband/partner ever refuse to give money for household expenses, even when has money
Yes	1.4	(0.6, 3.3)	2.8	(1.4, 5.6)
No or not applicable	Ref		Ref
Health provider has discussed contraception
Yes	0.8	(0.5, 1.2)	0.7	(0.4, 1.0)
No	Ref		Ref
Importance of avoiding pregnancy
Very important, important	0.7	(0.4, 1.1)	0.4	(0.3, 0.7)
Neutral / no opinion, not very important	Ref		Ref
History of forced sex
Yes	1.3	(0.6, 3.0)	1.7	(0.8, 3.4)
No	Ref		Ref

COC = combination oral contraception; IUD = intrauterine device

^aPer tier classification by the World Health Organization [15]

^bResults are from full multinomial regression model that includes all variables in the table with Tier 1 or 2 method without withdrawal as the referent