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Table 4 The final model: The three risk groups with sensitivity (SE), specificity (SP), positive predictive value (PPV) and negative predictive value (NPV) with 95% confidence intervals (CI) and prevalence of complicated grief (ICG-R).

From: Identifying bereaved subjects at risk of complicated grief: Predictive value of questionnaire items in a cohort study

Risk group N (%) SE (%) SP(%) PPV (%) NPV (%) ICG-R (%)
   (95% CI) (95% CI) (95% CI) (95% CI)  
1 162 (58.7) 100 0    5
2 84 (30.4) 85.2 (72.9-93.4) 69.4 (62.9-75.4) 40.4 (31.3-49.9) 95.1 (90.5-97.8) 29
3 30 (10.9) 40.7 (27.6-55.0) 96.4 (93.0-98.4) 73.3 (54.1-87.7) 87.0 (82.1-90.9) 73
  1. N = 276.
  2. The risk groups:
  3. Risk group 1: a BDI score of 0-9 and item C score of 1-4;
  4. Risk group 2: a BDI score of 10-19 or a BDI score of 0-9 and item C score of 5-7;
  5. Risk group 3: a BDI score of 20-63 or a BDI score of 10-19 and item C score of 5-7