Table 1:
Patient demographics
Age Group (mo)
N
Female (%)
Mean (SD) Age (wk)
0
156
60
1.6 (1.3)
1
72
40
6.2 (1.0)
2
87
50
10.8 (1.3)
3
64
25
15.2 (1.2)
6
77
37
27.7 (1.2)
12
27
16
54.2 (1.4)