Table 7.
The results on Bayley III scale for children 24-30 months of age
| Bayley Scales | IRAN (n=27) | USA (n=27) | Mann-Whitney U-test value | p-value |
|---|---|---|---|---|
| Cognition | 7.00 ± 3.64 | 6.85 ± 2.71 | - | 0.866a |
| Receptive Communication | 8 (5-9) | 9 (8-10) | 296.5 | 0.234b |
| Expressive Communication | 5.56 ± 3.97 | 6.74 ± 3.53 | - | 0.252a |
| Fine Motor | 6.41 ± 2.99 | 7.11 ± 2.65 | - | 0.364a |
| Gross Motor | 6.89 ± 4.49 | 8.26 ± 4.71 | - | 0.279a |
| Composite Cognition | 84.81 ± 18.11 | 84.26 ± 13.57 | - | 0.899a |
| Composite Language | 78.93 ± 21.42 | 85.19 ± 17.57 | - | 0.246a |
| Composite Motor | 80.07 ± 20.33 | 86.15 ± 20.05 | - | 0.274a |
| Percentile Cognition | 26.94 ± 25.15 | 21.79 ± 16.69 | - | 0.380a |
| Percentile Language | 8 (2-34) | 18 (6-34) | 286 | 0.174b |
| Percentile Motor | 22.61 ± 23.50 | 29.83 ± 27.82 | - | 0.308a |
aData are shown as mean ± standard deviation and were compared by independent samples t-test. bData are shown as median with interquartile range and were compared by Mann-Whitney U-test.*Statistically significant (p<0.05).