Table 2.
Child age and sex across child diagnosis and screening status on DFA6 from M-CHAT
| Group | Children without ASD | Children with ASD | F | P | |||
|---|---|---|---|---|---|---|---|
| DFA6 | N = 671 | N = 163 | |||||
| A N = 612 |
B N = 59 |
C N = 116 |
D N = 47 |
||||
| Below cut off | Cut off or higher | Below cut off | Cut off or higher | ||||
| Age at assessment | 3 and 4 years | 587 (95.9%) | 57 (96.6%) | 60 (51.7%) | 40 (85.1%) | 211.488a | < .001 |
| 5 and 6 years | 13 (2.1%) | 2 (3.4%) | 17 (14.7%) | 3 ( 6.4%) | |||
| 7 to 10 years | 12 (2.0%) | 0 (0.0%) | 39 (33.6%) | 4 (8.5%) | |||
| Sex | Male | 367 (60.0 &) | 49 (83.1%) | 101 (87.1%) | 30 (63.8%) | 40.318 4 | < .001 |
| Female | 245 (40.0%) | 10 (16.9%) | 15 (12.9%) | 17 (36.2%) | |||
aFisher’s exact test (expected number in cells < 5)