Sensitivities and specificities and likelihood ratios of the UK and Dutch referral criteria
| Criterion | UK | Dutch | ||||
| Sensitivity – pathology (% (95% CI)) | Specificity – pathology (% (95% CI)) | Positive likelihood ratio | Sensitivity – pathology (% (95% CI)) | Specificity – pathology (% (95% CI)) | Positive likelihood ratio | |
| HtSDS | 41 (30 to 53) | 83 (73 to 90) | 2.4 | 59 (47 to 70) | 79 (69 to 87) | 2.8 |
| Ht-THSDS | 48 (36 to 60) | 83 (73 to 90) | 2.7 | 74 (62 to 83) | 72 (61 to 81) | 2.6 |
| HtDefSDS | 33 (23 to 45) | 68 (56 to 77) | 1.0 | 44 (32 to 56) | 63 (52 to 74) | 1.2 |
| HtSDS and/or Ht-THSDS criteria | 68 (56 to 78) | 75 (65 to 84) | 2.8 | 83 (73 to 90) | 61 (50 to 71) | 2.2 |
| Any +criteria | 80 (70 to 88) | 52 (41 to 63) | 1.7 | 91 (82 to 96) | 39 (29 to 50) | 1.5 |
UK criteria: HtSDS <−2.7, Ht-THSDS >2.0 and HtDefSDS >1.3 SDS. Dutch criteria: HtSDS <−2.0, Ht-THSDS >1.6 and HtDef SDS >1.014.
HtDefSDS, height deflection SDS; HtSDS, height SDS; Ht-THSDS, height SDS−target height SDS; SDS, SD scores.