Variable Immunological Status HR(95% CI)
Crude HR [95% CI] Adjusted HR [95% CI]
Failed Censored
Sex
Male 53 154 1.19[0.98, 1.44]  
Female 54 248 1  
Recurrent Pneumonia(> two times)
Yes 63 263 1.39 [0.94, 2.04] 1.62[1.10, 2.40]*
No 44 139 1 1
Recurrent URTIs
Yes 36 182 1.53 [1.02, 2.28]*  
No 71 220 1  
Employment
Employed full time 32 180 1 1
Employed part time 10 36 1.58[0.78, 3.21] 1.58[0.77, 3.23]
Not working due to health problem 17 40 2.12[1.18, 3.88]* 2.19[1.20, 4.02]*
Unemployed 48 146 1.62[1.03, 2.53]* 1.74[1.11, 2.74]*
Weight Change
Positive 48 323 1 1
No/negative 59 79 3.53[2.406, 5.164]* 4.34 [2.93, 3.23]*
Baseline CD4
≤ 100cells/m3 63 149 2.18[1.48, 3.20]* 2.16 [1.44, 3.25]*
>100cells/m3 44 253 1  
*found significant at 0.05 level of significance
Table 3: The Cox-Regression output for predictors of immunological failure among patients taking ART at Debremarkos Hospital, Northwest Ethiopia, May 2012.