Table 1.

Inter-pregnancy intervals in months by baseline characteristics

		Median (IQR)
Overall		17 (11–26)
Residence
	Rural	17 (10–26)
	Urban	18 (11–26)
Region
	Sub-Saharan Africa	19 (13–27)
	North Africa, western Asia, and Europe	14 (7–23)
	Central, south, and southeast Asia	16 (9–24)
	Latin America and the Caribbean	17 (10–25)
Highest Level of education
	No education	18 (12–26)
	Primary	18 (11–26)
	Secondary or higher	16 (9–25)
Household wealth tertiles
	Poor	17 (11–25)
	Middle	17 (11–26)
	Rich	17 (10–26)
Age at conception of the index pregnancy, years
	<25	16 (9–23)
	25–29	19 (12–27)
	≥30	20 (13–28)
Previous pregnancy outcome
	Non-livebirth	8 (3–15)
	Livebirth	18 (12–26)

Summarised over surveys and characteristics.