Table 4.

Intensity (eggs per gram) of infection by community proportion of households with latrines in use among children aged 6 to 15 years in Amhara Region, Ethiopia, 2011–2014

		Community sanitation usage
		< 20%		20– < 40%		40– < 60%		60– < 80%		≥ 80%		Total
Infection	Eggs/gram	n	%	n	%	n	%	n	%	n	%	n	%	P a
Hookworm	0	1919	0.76	1536	0.83	1794	0.79	1975	0.77	1597	0.76	8821	0.78	0.47
	1–49	490	0.22	254	0.17	359	0.20	410	0.21	377	0.23	1890	0.21
	50–99	24	0.01	3	0.00	10	0.01	18	0.01	18	0.01	73	0.01
	≥ 100	9	0.00	3	0.00	5	0.00	8	0.00	5	0.00	30	0.00
T. trichiura	0	2382	0.97	1753	0.97	2069	0.96	2279	0.94	1858	0.93	10,341	0.96	< 0.01
	1–49	55	0.02	41	0.03	93	0.04	129	0.06	133	0.07	451	0.04
	50–99	1	0.00	1	0.00	3	0.00	2	0.00	3	0.00	10	0.00
	≥ 100	4	0.00	1	0.00	3	0.00	1	0.00	3	0.00	12	0.00
A. lumbricoides	0	2205	0.91	1510	0.84	1836	0.86	2024	0.84	1660	0.83	9235	0.86	0.13
	1–49	175	0.07	193	0.11	215	0.09	272	0.11	220	0.11	1075	0.10
	50–99	33	0.01	43	0.02	59	0.02	57	0.02	57	0.03	249	0.02
	≥ 100	29	0.01	50	0.02	58	0.02	58	0.02	60	0.03	255	0.02

^a P-values from Wald adjusted F-test for categorical variables