Table 5.
The results on Bayley III scale for children 12-18 months of age
| Bayley Scales | IRAN (n=73) | USA (n=73) | Mann-Whitney U-test value | p-value |
|---|---|---|---|---|
| Cognition | 7 (5-10) | 9 (6-10) | 2363.5 | 0.236a |
| Receptive Communication | 8 (7-10) | 9 (7-10) | 2382 | 0.265a |
| Expressive Communication | 7.88 ± 3.54 | 7.73 ± 2.89 | - | 0.779b |
| Fine Motor | 7.04 ± 3.13 | 7.81 ± 2.46 | - | 0.102b |
| Gross Motor | 7.00 ± 3.57 | 7.15 ± 3.50 | - | 0.797b |
| Composite Cognition | 85 (75-100) | 95 (80-100) | 2364.5 | 0.237a |
| Composite Language | 88.78 ± 16.08 | 88.82 ± 16.19 | - | 0.988b |
| Composite Motor | 82.15 ± 16.89 | 84.89 ± 15.31 | - | 0.306b |
| Percentile Cognition | 16 (5-50) | 37 (9-50) | 2364.5 | 0.236a |
| Percentile Language | 23 (6-54) | 27 (8-46) | 2536.5 | 0.616a |
| Percentile Motor | 16 (4-34) | 16 (6.5-34) | 2429.5 | 0.356a |
aData are shown as median with interquartile range and were compared by Mann-Whitney U-test. bData are shown as mean ± standard deviation and were compared by independent samples t-test. *Statistically significant (p<0.05).