Candidate variables that were associated with time to death at 25% significant level in the bivariate Cox regression analysis were sex, age, educational level, baseline weight, baseline BMI, baseline CD4 count, baseline hemoglobin, baseline WHO clinical staging, baseline functional status, baseline evidence of TB, tobacco smoking, alcohol drink, Khat chewing, disclosure status, ART adherence, CPT and INH prophylaxis. The gene discussed is CD4; the disease is tuberculosis.