Table 1. Characteristics of cases of acute jaundice syndrome and those testing positive and negative for HEV using RDTs RDTs during an acute outbreak of HEV in Am Timan, Chad, 2016–2017 (suspected cases = 1193; confirmed cases = 100; discarded cases = 150).

Characteristic	Suspected cases			Confirmed cases			Discarded cases			P-valueⱡ
	n	N	%	N	N	%	n	N	%
Sex
Male	631	1193	53	41	100	41	55	150	37	0.029
Age group (years)
0 to 4	153	1187	13	11	99	11	11	149	7	0.724
5 to 14	478	1187	40	23	99	23	32	149	21	0.001
15 to 44	503	1187	42	61	99	62	99	149	66	<0.001
≥44	53	1187	4	4	99	4	7	149	5	1.000
Household make up
≥5 persons in household	859	1020	84	47	53	89	84	108	78	0.497
≥ 2 children in household	628	1008	62	37	53	70	55	105	52	0.339
≥ 5 children in household	47	1008	5	6	53	11	1	105	1	0.065
Other household member with jaundice	131	1014	13	10	58	17	9	111	8	0.455
Pregnant or post-partum
Pregnant	16	42	38	15	29	52	33	59	56	0.371
Post-partum	1	8	12	2	16	12	1	23	4	1.000
Clinical status
Hospitalised	4	544	1	44	96	46	38	143	27	<0.001
Fever	525	575	91	64	92	70	88	135	65	<0.001
Nausea	308	572	54	53	93	57	71	137	52	0.651
Vomiting	590	703	84	57	65	88	72	104	69	0.536
Epigastric pain	348	571	61	54	91	59	74	137	54	0.861
Itching	405	569	71	51	91	56	62	138	45	0.005
Diarrhoea	85	563	15	12	93	13	17	138	12	0.693
Abnormal mental state	2	524	0	11	94	12	8	136	6	<0.001
Neighbourhood of residence
Anfandock	38	1181	3	5	96	5	7	149	5	0.456
Ganatir	208	1193	17	7	100	7	27	150	18	0.011
Ridina	135	1181	11	8	96	8	4	149	3	0.449
Riad	76	1181	6	7	96	7	3	149	2	0.911
Taradona (all)	315	1193	26	19	100	19	33	150	22	0.132

^ⱡ P-values derived from Pearson’s chi-squared test between suspected and confirmed cases