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Table 5 Posterior effects of the predictor variables from modeling CD4 cell count change with models (2) (no patient specific variance) and (5) (with patient specific variance)

From: Determinants of CD4 cell count change and time-to default from HAART; a comparison of separate and joint models

Parameters Estimate Standard error P-values
Intercept 1.808 0.910 0.470
Age − 0.658 0.145 0.831
Follow up times 0.047 0.052 0.058
Previous CD4 cell count (ref=y j  ≤ yj − 1) or  I i  = 0
I i  = 1  (y j  >  yj − 1) 0.072 0.320 0.650
Gender (ref = female)
 Male 0.003 0.084 0.976
Residence area (ref = Urban)
 Rural −0.380 0.083 0.648
Marital status(ref = living without partner)
 Living with partner 0.109 0.086 0.208
  1. where y j   is the CD4 cell count at the jth follow-up visit; yj − 1 is the CD4 cell count at the (j-1)th follow-up visit