“…In the current study, we also found that patients who had low BMI were significantly associated with renal impairment compared with those who had normal BMI; this result was similar to studies conducted in Vietnam and Japan [9,28,29], but in contrast to the study conducted in Ethiopia [25]. It may be different sample sizes [25], duration of study time, as a little is known about BMI effect on renal function on the long term [9]; therefore, the need for deep and longterm research should be taken into account. As shown in our study, we did not find the relationship between cotrimoxazole, hepatitis B, C virus infection, and renal impairment which was consistent with the study conducted in Vietnam [9]; however, these predictors could be affected by renal impairment [30,31].…”