Time to first birth and its predictors among reproductive age women in high fertility countries in Sub-Saharan Africa: Inverse Weibull gamma shared frailty model

Table 2 Socio-demographic and reproductive health-related factors among reproductive age women in high fertility countries in SSA (n = 186,771)

Variables	Categories	Weighted frequency	Weighted percentage
Age in years	< 20	39826	21.33
	20–29	68854	36.87
	≥ 30	78081	41.80
Current marital status	Married	140989	75.49
Current marital status	Unmarried	45782	24.51
Residence	Urban	70578	37.79
Residence	Rural	116193	62.21
Age at first sex in years	< 15	50831	27.23
	15–17	98154	52.58
	≥ 18	37676	20.19
Age at first marriage in years	< 15	26353	18.69
	15–17	50350	35.71
	≥ 18	64287	45.60
Spousal age gap in years	< 5	32419	25.33
Spousal age gap in years	≥ 5	95569	74.67
Modern contraceptive use	Yes	26348	14.11
Modern contraceptive use	No	160423	85.89
Demand for contraceptive	No demand	64001	34.27
	Unmet need	35719	19.12
	Meet need	87051	46.61

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