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:: Volume 3, Issue 2 (Autumn-winter 2015-2016 2015) ::
Jorjani Biomed J 2015, 3(2): 46-64 Back to browse issues page
Classification the Number of Children Ever Born using CART Model
Arezoo Bagheri , Mahsa Saadati
Associate Professor of Biostatistics, National Population Studies & Comprehensive Management Institute, Tehran, Iran , mahsa.saadati@gmail.com
Abstract:   (1829 Views)

Background and Objective: Discriminant analysis and logistic regression are classical methods for classifying data in several studies. However, these models do not lead in valid results due to not meeting all necessary assumptions. The purpose of this study was to classify the number of Children Ever Born (CEB) using decision tree model in order to present an efficient method to classify demographic data.

Methods: In the present study, CART tree model with Gini splitting rule was fitted to classify the number of CEB in fertility behavior of at least once married 15-49 year-old women, in Semnan-2012. 405 women aged 15-49 years old comprised the survey sample.

Results: Women in first and second birth cohorts who had married at an early age had 3 CEB while women who had married at an older age had 2 CEB. Women in third birth cohort who had married at an early age and were employed, had 2 CEB while unemployed women in this cohort whose type of marriages were familial and non-familial had 0 and 1 CEB respectively. Women in the third birth cohort who were married in older age had 1 CEB.

Conclusion: Among important advantages of CART model are the simplicity in interpretation, using distribution-free measures, considering missing data and outliers for construction trees which has increased the usage of this method. Therefore, this method is a suitable way for classifying demographic data in comparison to other classical modeling methods in the conditions that necessary assumptions are not met.

Keywords: Classification, Decision Tree, CART Model, Gini Splitting Rule, Children Ever Born (CEB)
Full-Text [PDF 798 kb]   (539 Downloads)    
Type of Study: Original paper | Subject: General
Received: 2016/03/19 | Accepted: 2016/03/19 | Published: 2016/03/19
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Bagheri A, Saadati M. Classification the Number of Children Ever Born using CART Model. Jorjani Biomed J. 2015; 3 (2) :46-64
URL: http://goums.ac.ir/jorjanijournal/article-1-407-en.html

Volume 3, Issue 2 (Autumn-winter 2015-2016 2015) Back to browse issues page
مجله زیست پزشکی جرجانی Jorjani Biomedicine Journal
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