INTRODUCTION AND OBJECTIVE: Previous studies showed suboptimal adherence to clinical practice guidelines for pelvic lymph node dissection (PLND) at the time of radical prostatectomy (RP). Robot-assisted RP (RARP) has become the predominant surgical management for localized prostate cancer in the US but contemporary national data on PLND adherence rate during RARP is still lacking. METHODS: RARPs for clinically localized (cT1-2N0M0) intermediate-risk and high-risk prostate cancer diagnosed between 2010 and 2016 in National Cancer Database were identified. Outcome of interest was PLND rate and multivariable logistic regressions were used to identify whether patient demographics and facility characteristics were associated with the outcome. RESULTS: We included 115,355 patients in the final cohort (intermediate-risk=86,314, high-risk=29,041). From 2010 to 2016, there was an increasing trend of PLND rate in the overall, intermediate-risk, and high-risk cohorts (Figure). In 2016, PLND was performed in 79.7% of the intermediate-risk and 93.5% of the high-risk patients. Multivariable logistic regressions showed Hispanic race/ethnicity (vs. white) (odds ratio [OR]=0.90, p=0.010), highest socioeconomic status (vs. lowest) (OR=1.17, p<0.001), rural area (vs. metro area) (OR=0.61, p<0.001), and academic facility (vs. community) (OR=1.79, p<0.001) were some of the factors associated with higher or lower PLND rate. Variations of PLND rate among reporting facility’s locations were also identified. Subgroup (intermediate-risk and high-risk) analyses showed findings comparable with primary analyses in the overall cohort. CONCLUSIONS: Contemporary national data showed significantly increased PLND rate in patients who underwent RARP for intermediate-risk and high-risk prostate cancer in recent years. However, there were still some variations in PLND rate among different patient populations and facilities. Continued efforts need to be made to further increase the PLND rate and narrow or eliminate disparities we identified.Source of Funding: None