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Table 3 Previous and Predictive Validity of A-TAC

From: The Autism–Tics, ADHD and other Comorbidities inventory (A-TAC): previous and predictive validity

Disorder Cut-off Previous Predictive Total
AUC sens/spec PPV NPVb DOR AUC sens/spec PPV NPVb DOR AUC sens/spec PPV NPVb DOR
ASD 4.5 (low) 0.98 0.85/0.97 0.11 0.999 166 0.81 0.42/0.97 0.08 0.996 21 0.89 0.60/0.97 0.19 0.995 49
8.5 (high) 0.48/0.99 0.22 0.997 113 0.17/0.99 0.11 0.995 22 0.30/0.99 0.33 0.992 62
ADHD 6 (low) 0.93 0.79/0.90 0.07 0.998 34 0.82 0.56/0.90 0.10 0.991 12 0.86 0.64/0.91 0.17 0.989 18
12.5 (high) 0.46/0.98 0.2 0.995 50 0.19/0.98 0.18 0.984 14 0.28/0.99 0.38 0.979 29
LD 1 (low) 0.87 0.83/0.85 0.03 0.999 27 0.92 0.89/0.85 0.02 0.999 48 0.89 0.86/0.85 0.05 0.998 34
3 (high) 0.37/0.99 0.13 0.996 40 0.40/0.99 0.1 0.998 44 0.39/0.99 0.22 0.994 48
DCD 0.5 (low) 0.82 0.70/0.92 0.02 0.999 27 0.57 0.22/0.92 0 0.999 3 0.77 0.60/0.92 0.03 0.999 18
1 (high) 0.38/0.98 0.06 0.998 35 0.11/0.98 0 0.999 7 0.32/0.98 0.06 0.998 27
TD 1.5 0.86 0.59/0.97 0.03 0.999 43 0.80 0.47/0.97 0.03 0.999 27 0.83 0.52/0.97 0.05 0.998 34
ODD 3 0.99 0.88/0.97 0.01 1.0 222 0.80 0.45/0.97 0.01 1.0 26 0.85 0.57/0.97 0.02 1.0 43
CD 2 0.90 0.52/0.99 0.05 0.999 104 0.70 0.20/0.99 0.04 0.998 24 0.77 0.31/0.99 0.09 0.998 45
OCDa 1 0.88 0.67/0.98 0.01 1.0 107 0.65 0.25/0.98 0.03 0.998 18 0.68 0.30/0.98 0.04 0.998 24
EDa 1 0.72 0.38/0.95 0.01 0.999 11 0.52 0.10/0.95 0.01 0.995 2 0.56 0.16/0.95 0.02 0.995 3
  1. Previous and predictive validity: area under the curve (AUC), sensitivity/specificity, positive (PPV) and negative predictive value (NPV), and diagnostic odds ratio (DOR) for each cut-off value in the A-TAC
  2. aNo previous established cut-off value
  3. bFor clarity reasons, NPV is reported with three decimals