Table 2 Association of brain ultrasound measures with Q-CHAT score
| Â | Weeks of gestation | |||||
|---|---|---|---|---|---|---|
| Â | 12 weeks | 20 weeks | 28 weeks | |||
| Â | Effect size | p | Effect size | p | Effect size | p |
Head circumference | Â | Â | Â | Â | Â | |
Model 1 | r = 0.008 | p = 0.928 | r = 0.105 | p = 0.172 | r = 0.182 | p = 0.015 |
Model 2 (adjusted) | r = 0.136 | p = 0.114 | r = 0.02 | p = 0.79 | r = 0.211 | p = 0.005 |
Model 3 (multiple) | r = 0.140 | p = 0.109 | r = 0.07 | p = 0.407 | r = 0.24 | p = 0.003 |
|  | Model 3 R2 = 0.010 | Model 3 R2 = − 0.005 | Model 3 R2 = 0.056 | |||
Transcerebellar diameter | ||||||
Model 1 |  | r = 0.233 | p = 0.003 | r = 0.157 | p = 0.044 | |
Model 2 (adjusted) | r = 0.162 | p = 0.039 | r = 0.111 | p = 0.158 | ||
Model 3 (multiple) | r = 0.17 | p = 0.034 | r = 0.13 | p = 0.133 | ||
|  | Model 3 R2 = 0.021 | Model 3 R2 = 0.024 | ||||
Ventricular atrium | ||||||
Model 1 |  | β = 0.093 | p = 0.242 | r = − 0.01 | p = 0.898 | |
Model 2 (adjusted) | β = 0.110 | p = 0.167 | r = − 0.03 | p = 0.724 | ||
Model 3 (multiple) | r = 0.08 | p = 0.311 | r = − 0.08 | p = 0.376 | ||
|  | Model 3 R2 = − 0.002 | Model 3 R2 = 0.02 | ||||