Appendix 2—table 2. Assortativity by age and sex, weighing by study sample size (method A).

	Age category						Gender
LIC/LMIC
		Contact age					Contact gender
		1	2	3			Male	Female
Participant age	1	0.47	0.41	0.12	Participant gender	Male	0.59	0.41
	2	0.22	0.64	0.14		Female	0.41	0.59
	3	0.20	0.51	0.29
UMIC
		Contact age					Contact gender
		1	2	3			Male	Female
Participant age	1	0.34	0.51	0.15	Participant gender	Male	0.52	0.48
	2	0.20	0.62	0.17		Female	0.46	0.54
	3	0.14	0.41	0.45
HIC
		Contact age					Contact gender
		1	2	3			Male	Female
Participant age	1	0.55	0.31	0.14	Participant gender	Male	0.51	0.49
	2	0.24	0.53	0.23		Female	0.42	0.58
	3	0.15	0.33	0.51