**6. Limitations of the study in HIV subpopulation**

A larger HIV study population would have been better, as it would have prevented skewing of the colinearity that rendered null and void the multivariate linear regression of urine creatinine with the variables. Staging of HIV infection for all the

*Urine Creatinine Excretion in HIV and Non-HIV Subjects DOI: http://dx.doi.org/10.5772/intechopen.91416*

subjects and concisely defining the time from the diagnosis of HIV infection in these subjects to the conduct of this study were not done but would have contributed in further defining the link between urine creatinine and these factors. Similarly, the non-HIV study population was small. A way larger sample size would have shown a proportion of these with low and high urine creatinine, however little they may be, and also the potential risk factors of dilute and concentrated urine in this population.
