Table 2.

Mean age and median delay at time of measles vaccination among ethnic groups in Korogocho

	n	Mean age (Days)	SEM	Median delay (Days)	(95% CI)
Kikuyu	302	286	1.8	10	9, 13
Luhya	173	301	4.7	15	11, 19
Luo	215	280	3.2	9	7, 11
Kamba	55	279	3.9	8	4, 14
Other	93	293	4.5	17	13, 26

SEM: Standard error of mean