The impact of target dosimetry on patients' locoregional recurrence in nasopharyngeal carcinoma: A propensity score-matched analysis.

•PTV dose coverage has a significant impact on locoregional recurrence in NPC clinical routine patients.•D90 is the most important dose–volume factor for NPC locoregional recurrence.•The effect of clinical factors on patient’s outcome was filtered out by propensity score matching.