TABLE 4.
Measures of diagnostic accuracy of the DAWBA score threshold of 2+ applied to children aged 11–16 years, young people aged 17–19 years and combined with their respective parents (where both provided responses) for an eating disorder diagnosis according to DSM‐5 and ICD‐10 criteria (with 95% confidence intervals) in 2017 based on applied false negative rate from clinical sample (2.4%)
| Informant type | Diagnostic criteria used for clinical rating | Positive predictive value (%) | Negative predictive value (%) | Sensitivity (%) | Specificity (%) | Accuracy (%) |
|---|---|---|---|---|---|---|
| Children aged 11–16 years (n = 2597) | DSM‐5 | 1.9 (.9–3.7) | 97.5 (97.3–97.7) | 11.3 (4.7–21.9) | 85.4 (83.9–86.7) | 83.6 (82.1–85.0) |
| ICD‐10 | 1.6 (.7–3.4) | 97.5 (97.3–97.7) | 9.8 (3.7–20.2) | 85.3 (83.9–86.7) | 83.6 (82.1–85.0) | |
| Parents and their children 11–16 years combined (n = 2591) | DSM‐5 | 2.4 (1.3–4.5) | 97.6 (97.3–97.8) | 12.7 (5.7–23.5) | 87.1 (85.7–88.4) | 85.3 (83.8–86.6) |
| ICD‐10 | 2.1 (1.0–4.1) | 97.6 (97.3–97.8) | 11.3 (4.7–21.9) | 87.0 (85.7–88.3) | 85.2 (83.8–86.6) | |
| Young people aged 17–19 years old (n = 935) | DSM‐5 & ICD‐10 a | 3.8 (2.0–6.9) | 97.6 (96.9–98.1) | 28.0 (12.1–49.4) | 80.3 (77.5–82.8) | 78.9 (76.1–81.4) |
| Parents and their children aged 17–19 years combined (n = 413) | DSM‐5 & ICD‐10 a | 2.5 (.7–8.4) | 97.6 (96.8–98.2) | 20.0 (2.5–55.6) | 80.9 (76.7–84.6) | 79.4 (75.2–83.2) |
a
Both diagnostic criteria detected the same cases.