| Variables | Cases, n (%) | control n (%) | Total,n (%) |
|---|
| Sex | Male | 31(32.3) | 76(39.4) | 107(37) |
| Female | 65(67.7) | 117(60.6) | 182(63) |
| Age group | 18–25 | 12(12.5) | 21(10.9) | 33(11.4) |
| 26–35 | 20(20.8) | 40(20.7) | 60(20.8) |
| 36–45 | 20(20.8) | 43(22.3) | 63(21.8) |
| 46–60 | 28(29.2) | 61(31.6) | 89(30.8) |
| + 60 | 16(16.7) | 28(14.5) | 44(15.2) |
| Religion | Orthodox | 86(89.6) | 174(90.2) | 260(90) |
| Muslim | 10(10.4) | 19(9.8) | 29(10) |
| Ethnicity | Tigrian | 90(93.8) | 184(95.3) | 274(94.8) |
| Other | 6(6.2) | 9(4.7) | 15(5.2) |
| Education | Unable to read & write | 14(14.6) | 32(16.6) | 46(15.9) |
| Able to read & write | 12(12.5) | 52(26.9) | 64(22.1) |
| Primary school | 15(15.6) | 26(13.5) | 41(14.2) |
| Secondary school | 23(24) | 35(18.1) | 58(20.1) |
| Collage and above | 32(33.3) | 48(24.9) | 80(27.7) |
| Occupational status | Governmental | 39(40.6) | 73(37.8) | 112(38.8) |
| Self-employed | 35(36.5) | 61(31.6) | 96(33.2) |
| Unemployed | 22(22.9) | 59(30.6) | 81(28) |
| Marital status | Single | 21(21.9) | 48(24.9) | 69(23.9) |
| Married | 61(63.5) | 116(60.1) | 177(61.2) |
| Divorced | 6(6.3) | 14(7.3) | 20(69) |
| Widowed | 8(8.3) | 15(7.8) | 23(8) |
| Residence | Urban | 57(59.4) | 121(62.7) | 178(61.6) |
| Rural | 39(40.6) | 72(37.3) | 111(38.4) |
| Income | < 500 | 13(13.5) | 38(19.7) | 51(17.6) |
| 501–1500 | 23(24) | 45(23.3) | 68(23.5) |
| 1501–2500 | 15(15.6) | 21(10.9) | 36(12.5) |
| > 2500 | 45(46.9) | 89(46.1) | 134(46.4) |
