Table 1.

Sample summary statistics

	N	%	Median age (IQR) of BCG vaccination
Child’s birth weight (grams)
<2000	38	1.1	34 (18–46)
2000_2499	191	5.3	6 (1–15)
> = 2500	3,373	93.6	4 (1–10)
Settlement area
Korogocho	1,881	52.2	5 (1–11)
Viwandani	1,721	47.8	4 (1–10)
Mothers level of education
Incomplete primary/no education	910	26.4	5 (1–12)
Completed primary	1,564	45.2	4 (1–10)
Secondary+	983	28.4	4 (1–10)
Place of delivery
Non health facility	136	3.8	9 (5–16)
Health facility	3,466	96.2	4 (1–10)
Type of Health Facility
Private	2,318	67.1	6 (2–11)
Public	1,139	32.9	1 (1–7)
Child’s gender
Male	1,843	51.2	5 (1–11)
Female	1,759	48.8	4 (1–10)
Pregnancy intention for the current child
Wanted at that time	1,896	54.4	4 (1–10)
Wanted later	1,220	35	5 (1–11)
Not at all	368	10.5	5 (1–13)
Ethnic group
Kikuyu	1,094	31.6	3 (1–8)
Luhya	583	16.8	5 (1–12)
Luo	563	16.2	6 (1–12)
Kamba	712	20.6	4 (1–11)
Other	513	14.8	5 (1–12)