The role of greulich and pyle method in age estimation from left hand plain x-rays
Objective: To determine whether the Greulich and Pyle (G&P) atlas is applicable to populations of different ethnicity.
Material and Methods: A cross sectional study was conducted at Department of Diagnostic Radiology, National Institute Rehabilitation Medicine during 2017. Total 100 left hand and wrist radiographs were assessed using GP atlas for age estimation using non-probability consecutive sampling technique.
ean Chronological age (CA) and Skeletal age (SA) were calculated for each group and any significant differences between the two were established through two- tailed, paired t-test. Data was analyzed using SPSS version 17.
Results: Total of 100 patients with left hand and wrist x-rays were included (50 males, 50 females). Analysis showed a strong correlation between Chronological age (CA) and Estimated age (skeletal age) with a p <0.001. The mean difference between chronological age and skeletal age was .31050 years and std. Deviation 1.06866 respectively; p-values < 0.001. However, a strong significant positive correlation (r = .980; p-values, 0.001) was noted between chronological age and skeletal age in both the genders.
Conclusion: GP atlas can be used for age estimation to Islamabad Rawalpindi population but would recommend that differences highlighted are to be taken in to consideration for over- and under-aging.
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