Table 5.

Risk for cholera and non-cholera diarrhea among different groups of people by VCLC of killed OCV around 400 m of the household during the 1 year of follow-up, Zanzibar, East Africa (16).

	VCLC of OCV	Total subjects	Cholera		Non-cholera
			Cases	Incidence rate/1000	cases	Incidence rate/1000
No dose recipients	<39.38	4100	12	2.93	11	2.68
	39.38 – <43.78	4087	8	1.96	12	2.94
	43.78 – <46.85	4113	4	0.97	11	2.67
	46.85 – <53.95	4100	6	1.46	8	1.95
	53.95 –100	4100	3	0.73	13	3.17
	Total	20500	33	1.61	55	2.68
	Cochran-Amitage Trend Test (two-sided)		p –value = 0.0136		p-value = 0.997
Two-dose recipients	<42.52	4781	5	1.05	42	8.78
	42.52 – <46.57	4787	0	0.00	39	8.15
	46.57 – <53.12	4781	0	0.00	22	4.60
	53.12 – <64.07	4775	0	0.00	15	3.14
	64.07 –100	4797	1	0.21	15	3.13
	Total	23921	6	0.25	133	5.56
	Cochran-Amitage Trend Test (two-sided)		p-value = 0.021		p-value <0.0001
All eligible population	<40.93	9619	22	2.29	48	4.99
	40.93 – <44.85	9649	10	1.04	63	6.53
	44.85 – <50.08	9626	4	0.42	31	3.22
	50.08 – <62.09	9641	2	0.21	31	3.22
	62.09 –100	9643	4	0.41	34	3.53
	Total	48178	42	0.87	207	4.30
	Cochran-Amitage Trend Test (two-sided)		p-value <0.0001		p-value = 0.0030

Population is arranged by VCLC into quintiles, each having approximately the same size population in each level of VCLC.