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77 (4.16) respectively. There was a statistically significant correlation between total OSDI and total DEQ-5 scores (r = 0.649, p 0.0001). The area under the curve (AUC) of the ROC curve for DEQ-5 was 0.835 (95 % CI 0.796 - 0.875). A DEQ-5 threshold of 5.5 yielded maximum sensitivity (0.712) and specificity (0.827). The Cohen kappa using a the DEQ-5 total score threshold of 5.5 was K = 0.539 (p 0.0001). In conclusion, performance of the DEQ-5 questionnaire in discriminating symptoms of dry eye is comparable to the OSDI quest