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Table 4 Comparison of ISP-D diagnoses and psychiatrists' diagnoses for major depressive disorder

From: Web-based tools can be used reliably to detect patients with major depressive disorder and subsyndromal depressive symptoms

ISP-D diagnoses Psychiatrists' diagnosis Total
  Depressed Not depressed  
Yes 18 9 27
No 4 24 28
Total 22 33 55
  1. ISP-D: Internet-based Self-assessment Program for Depression
  2. Sensitivity = 81.8%; Specificity = 72.7%; Positive predictive value = 66.7%; Negative predictive value = 85.7%.