Table 3.

Multivariate Cox-Regression Analysis Showed Predictors of Time to Modern Contraceptives Use from the Resumption of Sexual Intercourse Among Postpartum Women in Ethiopia (n=1178)

Variables	Category	Unadjusted Hazard Ratio (95% CI)	Adjusted Hazard Ratio (95% CI)
Age of respondents (years)	15–19	Ref	Ref
	20–29	0.73(0.51–1.05)	0.93(0.69–1.23)
	30–39	0.74(0.56–0.96)	1.003(0.72–1.38)
	40–49	0.75(0.56–0.98)	0.93 (0.60–1.43)
Residence	Urban	1.02(0.90–1.15)	1.29(1.04–1.61)**
	Rural	Ref	Ref
Educational status	No Education	Ref	Ref
	Primary	1.93(0.82–2.10)	1.26(1.09–1.47)**
	Secondary	0.95(0.78 −1.13)	1.15(0.92–1.45)
	Higher	0.89(0.72–1.10	1.22(0.91–1.61)
Wealth index	Poorest	Ref	Ref
	Poorer	0.95(0.76–1.19)	0.75(0.60–1.35)
	Middle	0.91(0.73–1.14)	1.25(0.59–1.54)
	Richer	1.08(0.87–1.33)	0.77(0.55–1.21)
	Richest	0.94(0.77–1.13)	0.92(0.70–1.20)
Occupation	Un Employed	Ref	Ref
	Agricultural	1.13(0.96–1.31)	1.13(0.95–1.32)
	Non-agricultural	1.01(0.87–1.14)	0.86(0.74–1.29)
Place of delivery	Home	Ref	Ref
	Health Institution	1.04(0.92–1.16)	1.13(0.97–1.31)
Mode of delivery	Vaginal	Ref	Ref
	Cesarean Section	0.94(0.74–1.19)	1.15(0.89–1.47)
Type of birth	Single	Ref	Ref
	Multiple	1.48(0.92–2.38)	1.06(0.65–1.74)
Sex of the child	Male	Ref	Ref
	Female	1.05(0.94–1.18)	0.91(0.80–1.02)
Parity	One	0.90(0.76–1.06)	1.01(0.86–1.17)
	2–4	0.87(0.75–1.02)	0.97(0.76–1.25)
	>4	Ref	Ref
Currently breast feeding	No	Ref	Ref
	Yes	0.74(0.91–1.20)	0.83(0.74–0.95)**
Access to media	No	Ref	Ref
	Yes	1.25(0.85–1.60)	1.19(1.02–1.38)**

Notes: Double asterisk (**) shows a statistically significant association. Model fitness: Hat-statistic = 0.772, p=0.00; Hat-square = 0.034, p= 0.612

Abbreviation: Ref, reference category.