Meng Y, et al. - In this investigation involving 272 patients, researchers compared the use of CT scan with other clinical parameters in anticipating the recurrence of chronic rhinosinusitis with nasal polyps (CRSwNP), a nasal disease with a high tendency for recurrence. Participants in the study were consecutive CRSwNP patients undergoing an endoscopic functional sinus surgery. The research was completed by 230 of the 272 patients (118 patients with recurrence and 112 patients without recurrence). Twenty-four months after the first surgery was the average follow-up time. Significantly higher in the recurrence group were the onset of surgical history and asthma, visual analog scores of CRS, anosmia score, ratio of total ethmoid sinus scores for both sides and maxillary sinus score for both sides (E/M ratio), Lund-Kennedy score, tissue eosinophil percentage, and tissue eosinophil absolute count. As a predictor for CRSwNP recurrence, the E/M ratio displayed high precision. The E/M ratio cut-off point of 2.55 showed the highest predictive value of recurrence of CRSwNP. In the Chinese population, the E/M ratio is a useful predictor for the recurrence of CRSwNP.