Sundus N Iftikhar, Nazeer Khan.
Age Estimation of School Going Children of Pakistan by Number of Erupted Teeth Using Median Regression.
Ann Jinnah Sindh Med Uni Jan ;1(2):3-5.

Dental age is an important age assessment tool where birth records are not properly maintained and may also help determine age of alive or dead subjects. OBJECTIVE: To estimate the age of school going children of Pakistan by number of erupted teeth using school going children and compare its results with simple linear regression analysis. METHODOLOGY: This is a secondary data analysis using anthropometric data of 9,515 students from a Pakistani survey conducted between 2007 and 2014 in all four provinces of Pakistan. A total of 11 different models of simple linear and median regressions were computed and compared. RESULTS: Median regression model with number of teeth with its squared term was found to be the most suitable model amongst all others for estimation of age. Overall the calendar age of Pakistani students can be estimated with ± 0.5, ± 1 and ± 2years with 37.6%,61.6%, and 87.1% with this model respectively, however Model 9 of simple linear regression estimated the age with ± 0.5, ± land ± 2 years with 33.4%,58.3%, and 86.1% respectively. CONCLUSION: Median Regression showed better age estimation procedure than the other procedures.

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