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Table 2 The application of the two-stage window screening method for screening of children using the Taiwan Birth Cohort Study Developmental Instrument (TBCS-DI) at 18 months and the rate of diagnosis with autism spectrum disorder (ASD) at 5.5 years old

From: Two-stage window screening and development trajectories in early identification of autism spectrum disorder among Han Chinese children

  ASD Not diagnosed Total  
TBCS-DI 54 3763 3817 PPV:
54/3817 = 1.41%
Others 34 17,812 17,846 NPV:
17,812/17,846 = 99.81%
Total 88 21,575 21,663  
  Sensitivity
54/88 = 61.36%
Specificity
17,822/21,575 = 82.60%
  
  1. PPV positive predictive value, NPV negative predictive value
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