TABLE 1.
Measures of diagnostic accuracy of the standard DAWBA score threshold for an eating disorder diagnosis according to DSM‐5 and ICD‐10 criteria for children aged 11–16 years old, young people aged 17–19 years old and their respective parents (with 95% confidence intervals) in 2017 based on zero false negatives
| Informant type | Diagnostic criteria used for clinical rating | Positive predictive value (%) | Negative predictive value (%) | Sensitivity (%) | Specificity (%) | Accuracy (%) |
|---|---|---|---|---|---|---|
| Parents of 11–16‐year‐olds (n = 3112) | DSM‐5 | 4.9 (1.9–7.9) | 99.8 (99.6–100.0) | 66.7 (42.8–90.5) | 93.7 (92.8–94.6) | 93.6 (92.7–94.5) |
| ICD‐10 | 4.4 (1.6–7.2) | 99.8 (99.6–100.0) | 64.3 (39.2–89.4) | 93.7 (92.8–94.6) | 93.6 (92.7–94.5) | |
| Children aged 11–16 years (n = 2597) | DSM‐5 | 1.0 (.9–1.1) | 100.0 (‐) | 100.0 (66.4–100.0) | 65.7 (63.4–67.5) | 65.8 (63.9–67.6) |
| ICD‐10 | .9 (‐) | 100.0 (‐) | 100.0 (63.1–100.0) | 65.6 (63.8–67.5) | 65.7 (63.9–67.6) | |
| Parents and their children 11–16 years combined (n = 2591) | DSM‐5 | .8 (.7–.8) | 100.0 (‐) | 100.0 (66.4–100.0) | 55.2 (53.3–57.1) | 55.4 (53.4–57.3) |
| ICD‐10 | .7 (.6–.7) | 100.0 (‐) | 100.0 (63.1–100.0) | 55.2 (53.2–57.1) | 55.3 (53.4–57.2) | |
| Parents of 17–19‐year‐olds (n = 415) | DSM‐5 & ICD‐10 a | 6.3 (4.5–8.6) | 100.0 (‐) | 100.0 (15.8–100.0) | 92.7 (89.8–95.1) | 92.8 (89.8–95.1) |
| Young people aged 17–19 years old (n = 935) | DSM‐5 & ICD‐10 a | 1.7 (1.6–1.8) | 100.0 (‐) | 100.0 (59.0–100.0) | 55.3 (52.0–58.5) | 55.6 (52.4–58.8) |
| Parents and their children aged 17–19 years combined (n = 413) | DSM‐5 & ICD‐10 a | .9 (.8–1.0) | 100.0 (‐) | 100.0 (15.8–100.0) | 47.9 (43.0–52.9) | 48.2 (43.3–53.1) |
a
Both diagnostic criteria detected the same cases.