Table 1. Sociodemographic characteristics of cases (n = 72) and controls (n = 286) in selected hospitals of Wollega zones, 2017/18.

Variables	Control n [%]	Cases n [%]
	[n = 286]	[n = 72]
Age
< = 20	31[10.8]	10[13.9]
21–34	237[82.9]	53[73.6]
>34	18[6.3]	9[12.5]
Religion
protestant	187[65.4]	47[65.3]
Orthodox	64[22.4]	20[27.8]
Muslim	26[9.1]	3[4.2]
Wakefata	9[3.1]	2[2.8]
Ethnicity
Oromo	242[84.6]	56[77.8]
Amhara	30[10.5]	13[18.1]
Gurage	14[4.9]	3[4.7]
Residency
Urban	157[54.9]	39[54.2]
Rural	129[45.1]	33[45.8]
Occupational status
House wife	135[42.2]	36[50]
Government Employee	71[24.8]	16[22.2]
Merchant	60[21]	12[16.7]
Daily laborer	20[7]	8[11.1]
Educational Status
Unable to read and write	64[22.4]	14[19.4]
Elementary	72[25.2]	26[36.1]
Secondary	88[30.8]	18[25]
College and above	62[21.7]	14[19.4]