Table 1.
School survey: screening results (N = 9,074)
| N | SCQ total score X (SD) | Screening statusa N (%) | p‐Valueb | ||||
|---|---|---|---|---|---|---|---|
| All | Screen − | Screen + | Negative | Positive | |||
| All subjects | 9,074 | 6.8 (5.3) | 5.7 (3.7) | 19.1 (4.2) | 8,303 (91.5) | 771 (8.5) | |
| Age 5–6 | 1,321 | 6.2 (5.1) | 5.2 (3.6) | 19.8 (4.8) | 1,237 (93.6) | 84 (6.4) | <.001 |
| Age 7–8 | 3,399 | 6.7 (5.3) | 5.6 (3.7) | 19.5 (4.5) | 3,138 (92.3) | 261 (7.7) | |
| Age 9–10 | 2,765 | 6.9 (5.2) | 5.7 (3.7) | 18.4 (3.6) | 2,511 (90.8) | 254 (9.2) | |
| Age 11–12 | 1,589 | 7.4 (5.5) | 6.0 (3.7) | 19.1 (4.3) | 1,417 (89.2) | 172 (10.8) | |
| All boys | 3,716 | 7.2 (5.5) | 5.9 (3.7) | 19.4 (4.3) | 3,358 (90.4) | 358 (9.6) | |
| Age 5–6 | 532 | 6.3 (5.1) | 5.4 (3.7) | 19.8 (4.6) | 498 (93.6) | 34 (6.4) | .01 |
| Age 7–8 | 1,517 | 7.2 (5.5) | 5.9 (3.7) | 19.5 (4.3) | 1,378 (90.8) | 139 (9.2) | |
| Age 9–10 | 1,096 | 7.3 (5.5) | 5.9 (3.8) | 18.7 (3.7) | 975 (89.0) | 121 (11.0) | |
| Age 11–12 | 571 | 7.9 (5.8) | 6.3 (3.7) | 20.3 (4.9) | 507 (88.8) | 64 (11.2) | |
| All girls | 4,960 | 6.6 (5.1) | 5.5 (3.6) | 18.9 (5.1) | 4,572 (92.2) | 388 (7.8) | |
| Age 5–6 | 694 | 6.1 (5.1) | 5.1 (3.5) | 20.1 (5.1) | 649 (93.5) | 45 (6.5) | <.001 |
| Age 7–8 | 1,730 | 6.3 (5.0) | 5.4 (3.6) | 19.4 (4.8) | 1,617 (93.5) | 113 (6.5) | |
| Age 9–10 | 1,560 | 6.6 (5.0) | 5.6 (3.7) | 18.2 (3.5) | 1,437 (92.1) | 123 (7.9) | |
| Age 11–12 | 976 | 7.3 (5.4) | 5.9 (3.7) | 18.5 (3.9) | 869 (89.0) | 107 (11.0) | |
a
Positive or negative status is defined by a Social Communication Questionnaire (SCQ) total score either ≥ or < 15 (see text).
b
Comparisons (chi‐square) of the percentages of screen‐negative and screen‐positive children between the 4 age categories.