“…When categorized by drug classes, the incidence of DRMs was 71.1% (655/921), 78.3% (721/921), 5.2% (48/921), and 3.1% (23/921) for NRTIs, NNRTIs, PIs, and INSTIs, respectively, which is consistent with the data reported previously. [ 5 , 6 ] In this survey, we found that the incidence of DRMs was the highest in patients with NNRTI-based regimens (582/664, 87.7%), followed by PI (125/196, 63.8%) and INSTI (22/31, 71.0%)-based regimens, which is consistent with previously reported incidence (50–97%) of DRMs to NNRTIs in patients who failed ART involving NNRTI-based regimens. [ 5 , 6 ] The higher incidence of DRMs against NNRTIs might be attributed to their lower resistance barrier and the frequent use as a first-line therapy.…”