Table 2.

Percent distribution of the enrolled infants by background characteristics (n = 197)

Infant characteristics	Frequency	Per cent
Sex
Boy	111	56.3
Girl	86	43.7
Birth weight*
< 2.5 kg	24	12.4
> 2.5 kg	169	85.8
Age groups in months
< 6	109	55.3
6-12	68	34.5
> 12	20	10.2
Child rank
First	106	53.8
Second ++	91	46.2

^*Birth weight (n = 193): 4 mothers did not remember.