Table 1.
Group Characteristics and ASD Symptomatology at 7 Years
| 7‐Year Outcome Measure | LR N = 37* | HR‐Non‐ASD‐7 N = 24* | HR‐ASD‐7 N = 15* | MANOVA/ANOVA Group effects |
|---|---|---|---|---|
| Age (months) | 89.34 (4.81) | 91.42 (6.28) | 89.13 (6.53) | n/s |
| Sex (male: female) | 15:22 | 5:19 | 7:8 | n/s |
| ADI—Social | Not completed | 4.04 (5.48)a | 13.14 (4.69)b | F(1, 36) = 27.00, P < .001, η2 = .429 |
| ADI—Communication | Not completed | 4.25 (4.67)a | 10.43 (4.59)b | F(1, 36) = 15.70, P < .001, η2 = .304 |
| ADI—RRB | Not completed | 0.58 (1.41)a | 3.57 (1.74)b | F(1, 36) = 33.33, P < .001, η2 = .481 |
| ADOS—CSS Total | 1.70 (1.19)a | 2.46 (1.41) | 6.33 (2.92)b | F(2, 69) = 37.61, P < .001, η2 = .522 |
| ADOS CSS SA | 2.18 (1.70)a | 2.96 (1.60) | 6.60 (2.59)b | F(2, 69) = 29.11, P < .001, η2 = .458 |
| ADOS CSS RRB | 1.12 (0.70)a | 3.04 (2.84)b | 6.13 (2.70)b | F(2, 69) = 29.80, P < .001, η2 = .463 |
| SRS‐2 | 45.49 (5.82)a | 52.37 (11.74)a | 74.85 (22.77)b | F(2, 64) = 26.59, P < .001, η2 = .454 |
| RBS‐R | 1.40 (2.05)a | 5.05 (11.54)a | 30.08 (33.55)b | F(2, 65) = 16.15, P < .001, η2 = .332 |
| SSP | 174.09 (11.49)a | 167.38 (22.83)a | 141.58 (36.26)b | F(2, 64) = 10.31, P < .001, η2 = .244 |
Means (SD) are presented by ASD outcome group.
Groups marked with different superscript letters (a, b, c) differed significantly with Tukey's HSD correction applied (P < .05).
*Group sizes are smaller for some variables due to missing data.
HR‐ASD‐7 group minimum n = 12; HR‐Non‐ASD‐7 group minimum n = 19; LR group minimum n = 33.
ADI, autism diagnostic interview—revised; RRB, repetitive and restrictive behaviour; ADOS, autism diagnostic observation schedule; CSS, calibrated severity score; SA, social affect; SRS‐2, social responsiveness scale—2; RBS‐R, repetitive behavior scale—revised; SSP, short sensory profile.