Longitudinal growth of head circumference in Punjabi infants in Chandigarh (India) |
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Authors: | A K Bhalla B N S Walia MD FAMS |
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Institution: | (1) Advanced Paediatric Centre Ph. D, PGIMER, Chandigarh, India;(2) Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India |
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Abstract: | One hundred and fifty four (86 male and 68 female) Punjabi infants residing in Chandigarh (India) were longitudinally measured
for head circumference at monthly age intervals during first year of life. The general pattern of growth of head circumference
was characterised by initial sharp rise followed by slow gain during second half of infancy. Beyond birth male infants, possessed
higher and statistically significant mean values than their female counterparts. The pattern-wise similarity between growth
curves plotted for Punjabi and Western infants, may be attributed to protective effects of breast feeding. Head circumference
velocity showed rapid deceleration immediately after birth up to about 4 months, thereafter, it declined slowly. Sex differences
in monthly growth rates were found to be statistically significant (p<0.05) at a few of the age intervals during first year
of life. |
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Keywords: | Longitudinal data head circumference Distance curve Growth velocities Punjabi infants |
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