*4.1.4 Concentrated urine associated with BMI in HIV patients*

High urine creatinine has a high correlation with body mass index, r = 0.74, in this study. This is in conformity with the findings reported by Forbes et al. [21] with r = 0.99 and Baxmann et al. [22] with r = 0.74. These two studies differed in design as they were administered in a very general population, compared to the present index subpopulation of our study that was an HIV patient population. The marginally higher correlation seen within the Forbes et al. [21] study showed a rather higher correlation which could be adduced to urine creatinine evaluation in lean body mass, in subjects very likely to be underweight.
