Table 1

 Sensitisation probability at baseline after applying the diagnostic rule with questionnaire predictors

Questionnaire sumscoresnPredicted*Observed
*Mean (SD).
⩾4.5 points (high probability)750.59 (0.10)0.63 (47/75)
<4.5 points (low probability)2960.18 (0.09)0.17 (51/296)
Total population3710.26 (0.19)0.26 (98/371)