Table 1
Description of stratified subgroups and numbers and sex of infants in each subgroup
Group
Gestation at birth
Placebo
Carnitine
No
Male
No
Male
1
28 weeks–29 weeks, 6 days
14
8
16
5
2
30 weeks–31 weeks, 6 days
16
12
13
8
3
32 weeks–33 weeks, 6 days
13
7
14
8
All groups
43
27
43
21