Table 1. Reasons for household non-response in the surveys conducted 1 month before (baseline), and 3 and 12 months after (first and second follow-up) an oral cholera vaccination campaign, Maela Camp, 2013.

Reason for non-response	Baseline		1st follow-up		2nd follow-up
	No.	%	No.	%	No.	%
Temporarily lived/worked outside camp	32	40	10	22	16	47
No longer lived in camp	28	35	12	26	14	41
Not home	15	19	11	24	1	3
Could not be located	2	3	11	24	2	6
Refused	-	-	1	2	1	3
Ineligible (arrived <1 month before campaign)	-	-	1	2	-	-
Reason not recorded	2	3	-	-	-	-
Total	79	100	46	100	34	100