patients with HIV infection  
    patients without HIV infection
No. of patients        No. (%)
with Se deficiency
  No. of patients      No. (%)
with Se deficiency
Age          
       15-24 11 9(81.8) 41 31 (75.6)
     25-34 54 47(87) 30 25(83.3)
     35-44 33 28(84.8) 13 11(84.6)
     >45 11 9(81.8) 13 11(84.6)
Sex          
      Male 65 55(84.6) 62 45(72.6)
    Female 44 38(86.4) 35 33(94.3)
Address          
      Rural 78 67(85.9) 64 49(76.6)
    Urban 31 26(83.9) 33 29(87.9)
Marital Status          
      Married 53 44(83) 47 38(80.9)
    Single 33 28(84.8) 44 35(79.5)
    Divorced 23 21(91.3) 6 5(83.3)
Occupation          
  Government Employee 25 25(100) 22 19(86.4)
Farmer 46 38(82.6) 17 13(76.5)
Student 17 15(88.2) 10 10(100)
Housewife 7 5(71.4) 32 24(75)
Other 14 10(71.4) 16 12(75)
Income*          
  Low 59 50(74.6) 67 48(81.4)
Medium 34 18(94.7) 19 30(88.2)
High 16 10(90.9) 11 15(93.8)
Diarrhea          
  Acute 60 49(81.7) 32 27(84.4)
Chronic 49 44(89.8) 65 51(78.5)
Weight loss          
  Yes 60 54(90) 28 25(89.3)
No 49 39(79.6 69 53(76.8)
Intestinal Parasitosis          
  Yes 30 25(83.3) 36 28(77.8)
No 79 68(86.1) 61 50(82)
* Low: less than 1000 Ethiopian Birr/month. Medium: 1000 – 5000 Ethiopian Birr,
High: more than 5000 Ethiopian Birr/month. 1 Ethiopian Birr = 0.12 US Dollar.
Table 1: Baseline characteristics of diarrheic patients in relation to selenium deficiency