It has been generally observed that the G&P Method of estimating the chronological age from the radiographs of the subjects has been popularly used by all pediatricians globally including India. However researches have shown that there is a high discrepancy when G&P method is used to estimate the subjects in Indian condition, probably due to high variation in genetics, nutritional levels, diet& climate etc. The present studywas conducted on 109 children from a remote region of Karnataka with 57 boys and 52 girls of different, who had been out patients in the Pediatrics department of the concerned medical college hospital. G&P method was used to estimate the age using radiographs of left wrist & palm, taken for clinical diagnosis. Each child's age estimation was uniformly done against the chronological age of the child at two time phases. When skeletal age estimation of the data was compared with the chronological age of the children, in almost all cases differences were noted. Keeping the chronological age as the base, the obtained differences were converted in to percentage changes. The observed mean percentage were compared with the mean percentage changes of G&P method for each age group and across the two time phases. The results showed a significant difference between the percentage changes obtained in this study by G&P method as compared to G&P standard data for comparing the age of the samples. Ranged from 23% to 28%, demonstrating there by the need for correction either statistically or otherwise to render the estimation by G&P method applicable.
Greulich and Pyle Method (G&P), chronological age, skeletal age, radiographs
