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Table 3 Psychometric properties of the SRQ-20 with different cut-off scores

From: Psychometric properties and longitudinal validation of the self-reporting questionnaire (SRQ-20) in a Rwandan community setting: a validation study

  Cut-off Sensitivity Specificity PPV NPV PLR NLR Agreement kappa
Male 7 0.69 0.59 0.81 0.43 1.67 0.52 62% 0.24
  8* 0.69 0.65 0.83 0.47 2.01 0.47 67% 0.31
  9 0.54 0.69 0.77 0.44 1.74 0.67 64% 0.21
Female 8 0.81 0.66 0.90 0.48 2.38 0.28 70% 0.39
  9 0.81 0.71 0.91 0.52 2.78 0.27 74% 0.44
  10* 0.81 0.80 0.92 0.62 4.16 0.23 81% 0.56
  11 0.69 0.83 0.87 0.61 4.03 0.38 79% 0.50
Total 7 0.76 0.61 0.86 0.45 1.97 0.39 66% 0.31
  8 0.76 0.66 0.87 0.48 2.12 0.37 69% 0.36
  9 0.69 0.70 0.84 0.49 2.30 0.44 70% 0.35
  10* 0.69 0.79 0.86 0.57 3.22 0.39 76% 0.45
  11 0.55 0.86 0.82 0.62 3.86 0.52 77% 0.42
  1. * Optimal cut-of score; scores above this cut-off value give the best indication for possible psychopathology.
  2. Note: PPV: positive predictive value; NPV: negative predictive value; PLR: positive likelihood ratio; NLR: negative likelihood ratio.