Table 3.
Parental characteristics across child diagnosis and symptom status on DFA6 from M-CHAT
| Total N = 834 | Group | Children without ASD | Children with ASD | Test statistics | P value | ||
|---|---|---|---|---|---|---|---|
| DFA6 | N = 671 | N = 163 | |||||
| A N = 612 |
B N = 59 |
C N = 116 |
D N = 47 |
||||
| Below cut offa | Cut off or higher | Below cut off 0 | Cut off or higher | ||||
| Maternal age | < 25 years | 57 (9.3%) | 6 (10.2%) | 15 (12.9%) | 2 (4.3%) | χ2 = 13.916 | = .125 |
| 25–29 years | 185 (30.2%) | 12 (20.3%) | 39 (33.6%) | 22 (46.8%) | |||
| 30–34 years | 240 (39.2%) | 28 (47.5%) | 46 (39.7%) | 16 (34.0%) | |||
| > 34 years | 130 (21.2%) | 13 (22.0%) | 16 (13.8%) | 7 (14.9%) | |||
| Maternal education | < 12 yearsb | 42 (6.9%) | 8 (13.6%) | 7 (6.0%) | 6 (12.8%) | χ2 = 11.607 | = .478 |
| 12 yearsc | 153 (25.0%) | 14 (23.7%) | 38 (32.8%) | 13 (27.7%) | |||
| 13–16 yearsd | 241 (39.4%) | 24 (40.7%) | 44 (37.9%) | 16 (34.0%) | |||
| > 17 yearse | 160 (26.1%) | 11 (18.6%) | 25 (21.6%) | 12 (25.5%) | |||
| Missing | 16 (2.6%) | 2 (3.4%) | 2 (1.7%) | 0 (0.0%) | |||
| Parity | 0 | 281 (45.9%) | 23 (39.0%) | 67 (57.8%) | 25 (53.2%) | χ2 = 7.839 | = .049 |
| 1+ | 331 (54.1%) | 36 (61.0%) | 49 (42.2%) | 22 (46.8%) | |||
Fisher’s exact test or Pearson’s Chi-squared test
aRated with none or only one ASD symptom
bNot completed high school
cHigh school level
dBachelor level
eMaster/Ph.D. level