“…Considering the main findings and studies undertaken in large populations, only some specif ic ART classes or agents were clearly found to be related to hypovitaminosis D. 9,10,23,24,26,[29][30][31][33][34][35]37,38,40,42,35 Several authors demonstrated that non-nucleoside reverse transcriptase inhibitor (NNRTI) use was associated with 25OHD deficiency. 10,35,37,40,45,51 For efavirenz, in particular, an association with low 25OHD concentration has often been suggested.…”