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Rate of developmental abnormalities in the two groups
| Group1 N (%) 102 | Group2 N (%) 153 | x2 value | p value | |
|---|---|---|---|---|
| MD | 9 (8.8) | 1 (0.65) | < 0.001a | |
| Rate of positive screen of M-chat | 9(8.8) | 0 (0) | 0.029 a | |
| Abnormity in GDDS | 46 (45.1) | 3 (5.8) | 24.557 | < 0.001 |
| Abnormity in CSIC | 30 (29.4) | 5 (3.3) | 7.686 | 0.006 |
aFisher’s exact probability test
