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Table 5 Levels of agreement for comparable PTSD symptoms

From: Assessing post-traumatic stress disorder in South African adolescents: using the child and adolescent trauma survey (CATS) as a screening tool

PTSD Symptom     95% Confidence Interval
   Observed Kappa Standard Error Lower Limit Upper Limit
Recurrent thoughts or images of event (i) 0.02 0.14 -0.31 0.26
  (ii) -0.57 0.22 -1.01 -0.13
  (iii) 0.01 0.18 -0.33 0.35
Trying not to think about the event (i) 0.25 0.13 -0.003 0.51
  (ii) -0.14 0.56 -1.24 0.96
  (iii) 0.07 0.17 -0.26 0.41
Sleep problems (i) 0.44 0.15 0.15 0.72
  (ii) 0.61 0.25 0.11 1
  (iii) 0.16 0.23 -0.3 0.62
Anger and irritability (i) 0.24 0.14 -0.05 0.52
  (ii) 0.24 0.3 -0.35 0.83
  (iii) 0.13 0.19 -0.24 0.49
Distress at reminders of event (i) 0.48 0.16 0.17 0.79
  (ii) 0.44 0.28 -0.1 0.98
  (iii) 0.17 0.29 -0.4 0.74
Exaggerated startle response (i) 0.39 0.15 0.09 0.68
  (ii) 0.3 0.35 -0.38 0.98
  (iii) 0 0.3 -0.59 0.59
Nightmares (i) 0.2 0.23 -0.26 0.65
  (ii) 0.23 0.26 -0.28 0.73
  (iii) -0.05 0.45 -0.93 0.82
Difficulty concentrating (i) 0.19 0.17 -0.04 0.51
  (ii) 0.35 0.26 -0.15 0.86
  (iii) 0.03 0.23 -0.41 0.48
Efforts to avoid reminders of event (i) 0.27 0.15 -0.03 0.56
  (ii) -0.31 0.3 -0.89 0.28
  (iii) 0.34 0.18 -0.02 0.7
  1. (i) Total sample (N = 58); (ii) Participants with PTSD on the K-SADS (N = 11);
  2. (iii) Participants without PTSD on the K-SADS (N = 47).