Fig. 2From: Development of the Lebanese insomnia scale (LIS-18): a new scale to assess insomnia in adult patientsROC curve of the LIS-18 scale. Patients taking drug medication for insomnia vs. those not taking drug were analyzed. Area under the curve = 0.920 [0.832–1.000] (P < 0.001); at value = 52.50, Se = 89.5% and Sp = 80.0%Back to article page