Preventive Care in Nursing and Midwifery Journal
Volume 15, Issue 1 (1-2025)
PCNM 2025, 15(1): 50-60 |
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Ethics code: IR.ZUMS.REC.1401.212
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Mohammadi Z, Fallah R, Khoshnevis Asl P, Ahmadi F. Effective factors on weight and height of two-year-old children: a longitudinal study using the joint quintile regression model. PCNM 2025; 15 (1) :50-60
URL: http://nmcjournal.zums.ac.ir/article-1-967-en.html
URL: http://nmcjournal.zums.ac.ir/article-1-967-en.html
Department of Statistics and Epidemiology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran , ahmadi.farzan@gmail.com
Abstract: (4 Views)
Background: Child growth is an important indicator of health from infancy to adulthood. Height and weight are widely used to assess the physical development and health of children. Since the effects of related factors may differ across the distribution of growth, joint quintile regression provides an appropriate method to identify heterogeneous associations.
Objectives: This study aimed to identify the factors influencing growth indicators of tow-year-old children using the joint quintile regression model.
Methods: In this longitudinal study, data were obtained from health records of 420 children aged 24 months, covered by urban and rural health service centers in Zanjan province, Iran, in 2019, using two-stage cluster sampling. The joint quintile regression model was fitted by R 4.3.3.
Results: The majority of children in the study were male (52.1%), urban residents (71.4%), and had mothers with diploma education (30.0%). The mean (SD) age of mothers was 30.70 (6.44) years. In all quintiles, gender, maternal age, gestational age (GA), maternal body mass index, and maternal education were positively and significantly associated with children's height and weight, except for maternal diploma education at the 0.25 quintile [95% CI (-0.05,0.03)]. Place of residence was negatively and significantly associated with both outcomes. Also, non-exclusive breastfeeding was negatively associated with children's height and weight at lower quintiles and positively associated at higher quantizes.
Conclusion: Considering the factors affecting child growth, paying attention to (gestational age, maternal education, place of residence, and exclusive breastfeeding) can be effective in promoting child growth.
Objectives: This study aimed to identify the factors influencing growth indicators of tow-year-old children using the joint quintile regression model.
Methods: In this longitudinal study, data were obtained from health records of 420 children aged 24 months, covered by urban and rural health service centers in Zanjan province, Iran, in 2019, using two-stage cluster sampling. The joint quintile regression model was fitted by R 4.3.3.
Results: The majority of children in the study were male (52.1%), urban residents (71.4%), and had mothers with diploma education (30.0%). The mean (SD) age of mothers was 30.70 (6.44) years. In all quintiles, gender, maternal age, gestational age (GA), maternal body mass index, and maternal education were positively and significantly associated with children's height and weight, except for maternal diploma education at the 0.25 quintile [95% CI (-0.05,0.03)]. Place of residence was negatively and significantly associated with both outcomes. Also, non-exclusive breastfeeding was negatively associated with children's height and weight at lower quintiles and positively associated at higher quantizes.
Conclusion: Considering the factors affecting child growth, paying attention to (gestational age, maternal education, place of residence, and exclusive breastfeeding) can be effective in promoting child growth.
Type of Study: Orginal research |
Subject:
other
Received: 2025/06/11 | Accepted: 2025/01/29 | Published: 2025/01/29
Received: 2025/06/11 | Accepted: 2025/01/29 | Published: 2025/01/29
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