Table 1.
Participant characteristics from the NDAR datasets.
| Discovery | Replication | |||||||
|---|---|---|---|---|---|---|---|---|
| SC > RRB | SC = RRB | RRB > SC | F (p value) | SC > RRB | SC = RRB | RRB > SC | F (p value) | |
| N (male) | 137 (109) | 611 (468) | 141 (115) | – | 124 (97) | 629 (482) | 137 (115) | – |
| Age in years | 7.24 (5.50) | 9.03 (5.38) | 10.05 (4.02) | 10.61 (2.77e-5) | 6.92 (5.14) | 9.10 (5.54) | 9.76 (4.35) | 10.80 (2.31e-5) |
| ADI-R SCb | 0.51 (0.13) | 0.31 (0.14) | 0.21 (0.10) | 212.57 (2.2e-16) | 191.67 (2.2e-16) | |||
| ADI-R RRBb | 0.21 (0.10) | 0.32 (0.14) | 0.49 (0.12) | 174.19 (2.2e-16) | 184.74 (2.2e-16) | |||
| ADOS SA CSSa | 7.46 (1.60) | 6.92 (2.01) | 6.11 (2.49) | 2.85 (0.06) | 6.96 (1.73) | 6.93 (2.04) | 6.62 (2.39) | 1.83 (0.16) |
| ADOS RRB CSSa | 8.37 (1.31) | 7.68 (2.30) | 7.37 (2.29) | 0.09 (0.91) | 7.42 (2.55) | 7.40 (2.30) | 6.62 (1.06) | 0.43 (0.64) |
| FIQi | 106.83 (17.10) | 103.89 (18.97) | 102.69 (14.59) | 0.32 (0.72) | 117.27 (13.76) | 105.44 (17.96) | 106.92 (15.88) | 2.38 (0.09) |
At a z-threshold of 1, this table shows sample sizes and descriptive statistics (mean and standard deviation) for age and ADOS social affect (SA) and restricted repetitive behaviors (RRB) calibrated severity scores. The final column on the right shows the F-statistic and p-value from an ANOVA testing for an effect of group. FIQ full-scale IQ, ADI-R autism diagnostic interview revised, ADOS autism diagnostic observation schedule, SC social-communication, RRB restricted repetitive behaviors, SA social affect, CSS calibrated severity score aSample sizes: ADOS (Discovery, RRB > SC n = 19, SC = RRB n = 99, SC > RRB n = 35; Replication RRB > SC n = 8, SC = RRB n = 119, SC > RRB n = 26); FIQ (Discovery, RRB > SC n = 39, SC = RRB n = 142, SC > RRB n = 18; Replication RRB > SC n = 40, SC = RRB n = 135, SC > RRB n = 11). bDSM-5 domain percentage scores used for the SC-RRB difference score computation.