Table 9.

The results on Bayley III scale for children 36-42 months of age

Bayley Scales	IRAN (n=18)	USA (n=18)	p-value
Cognition	8.33 ± 3.24	8.11 ± 1.71	0.799
Receptive Communication	7.00 ± 3.71	9.39 ± 2.17	0.026*
Expressive Communication	7.83 ± 4.58	9.50 ± 3.00	0.206
Fine Motor	7.00 ± 4.31	9.28 ± 3.14	0.080
Gross Motor	8.56 ± 3.33	10.78 ± 3.42	0.056
Composite Cognition	91.67 ± 16.18	90.56 ± 8.56	0.799
Composite Language	85.00 ± 22.38	96.00 ± 13.13	0.083
Composite Motor	86.78 ± 20.30	100.33 ± 17.89	0.041*
Percentile Cognition	36.84 ± 29.20	29.33 ± 16.71	0.352
Percentile Language	28.81 ± 32.26	40.72 ± 24.27	0.220
Percentile Motor	28.96 ± 30.11	46.83 ± 29.29	0.080

Data are shown as mean ± standard deviation. Means were compared by independent samples t-test. *Statistically significant (p<0.05).