Age (months) | (n) | Motor (PDI) | Mental (MDI) |
---|---|---|---|
Mean ± SD | |||
1 | (235) | 97.63 ± 7.08 | 98.41 ± 4.30 |
3 | (249) | 86.81 ± 5.15 | 95.07 ± 5.36 |
6 | (235) | 95.03 ± 8.74 | 96.12 ± 4.20 |
12 | (234) | 90.54 ± 8.26 | 93.60 ± 7.32 |
18 | (233) | 92.24 ± 6.80 | 89.81 ± 7.78 |
24 | (205) | 95.58 ± 8.27 | 86.24 ± 10.66 |
30 | (200) | 93.16 ± 9.41 | 90.52 ± 8.27 |