分组

3个月

6个月

1岁

2岁

3岁

A

−1.82 ± 1.39

−0.94 ± 2.65

−0.86 ± 0.67

−0.97 ± 0.69

−0.86 ± 0.73

B

−1.49 ± 1.14

−1.50 ± 0.78

−1.06 ± 0.56

−0.60 ± 0.44

−1.75 ± 0.71

C

−1.97 ± 1.82

−2.13 ± 2.36

−1.18 ± 0.70

−0.69 ± 0.55

−1.50 ± 0.71

D

−1.95 ± 1.73

−1.60 ± 1.80

−1.11 ± 1.34

−0.85 ± 1.40

−0.63 ± 1.00