Objective To explore the factors affecting the prevalence of HIV-associated neurocognitive disorders(HAND)among HIV/AIDS patients,so as to provide insights into developing HAND prevention measures.Methods HIV/AIDS patients aged 18 years and above in the Infection Department of Nanjing Second Hospital were selected.Demographic data,treatment regimen and blood biochemical indicators were collected.Depression was evaluated using Patient Health Questionnaire Depression Scale,frailty was evaluated using Chinese version of Tilburg Frailty Indicator,and HAND was evaluated by Montreal Cognitive Assessment Scale.Factors affecting HAND were analyzed using a multivariable logistic regression model.Results Totally 440 questionnaires were allocated and 426 valid question-naires were recovered,with an effective rate of 96.82%.The median age of patients investigated was 33.00(interquar-tile range,10.00)year.There were 407 males,accounting for 95.54%;232 patients with bachelor degree or above,accounting for 54.46%;171 patients with HAND,accounting for 40.14%.Multivariable logistic regression analysis showed that educational level(bachelor degree or above,OR=0.291,95%CI:0.157-0.541),depression(OR=2.499,95%CI:1.530-4.083),frailty(OR=2.121,95%CI:1.307-3.441)and treatment regimen including efavirenz(OR=2.223,95%CI:1.367-3.615)were the influencing factors for HAND among HIV/AIDS patients.Conclusion Educational lev-el,depression,frailty and use of efavirenz may be associated with HAND risk.