the development in all the bones i.e. Radius, Ulna, Short
bones and Carpal bones it shows intermediate values between
RUS and Carpal bones.
The trends of skeletal maturity are the same for both Delhi
and Jabalpur boys and girls except that they lag behind by
6-12 months at several chronological ages. The plotting of
percentile values of skeletal maturity scores for Vellore
boys and girls shown in Fig. 50 to 55, on the reference graphs
published for British children by Tanner shows that they compare
very well with British children at each age group. However,
each centre shows some divergence. For example, in Vellore
children, the variation as reflected by the 3rd and 97th percentiles
is more for each of the bone scores at all ages considered.
The picture is not very different for boys and girls from
other two centres except that the 50th centile values of all
the three skeletal maturity scores coincide with 25th centile
of the reference population till the age of 13 years. From
then onwards there is a close agreement between the 50th centiles.
In general the variability is more for Delhi and Jabalpur
children for each of the skeletal maturity scores.
This longitudinal study was carried out in six centres to
study the physical growth, secondary sexual characteristics
and skeletal maturity during adolescence as well as to study
the growth and development in relation to previous nutritional
status. A total of 6829 children (3517 boys and 3312 girls)
in the age group of 10 to 12 years were followed up at six
monthly intervals for a period of five years. The anthropometric
parameters of physical growth studied were height, weight,
chest circumference, mid-arm circumference, bi-acromial diameter
and bi-cristal diameter. The centrewise average values, standard
deviations and percentiles for males and females are presented
in Tables 2 to 17..
No significant differences in height and weight were observed
in this study as compared to an earlier ICMR study conducted
in the seventies 5.
The mean height of males was 6.1 cms. and 12.9 cms. lower
for rural areas and 5.6 cms. and 6.5 cms. for urban areas
studied than the mean height of affluent Indian children at
10 years and 16 years of age respectively. With regard to
weight of male children this difference was 5.9 and 5.1 kgs.
respectively at 10 years of age and 16.0 and