Parental stature as a risk factor for stunting in Indonesia: A systematic review and meta-analysis

Stunting is defined by height of more than two standard deviations below the World Health Organization's (WHO) child growth standard median. It is a significant nutritional problem in developing countries, where in 2021, Indonesia recorded a stunting prevalence at 24.4%, slightly higher than the global prevalence (22%). Reducing the prevalence of stunting has been the focus of the current administration in the Indonesian government, as delineated in the 2020-2024 National Medium-Term Development Plan. Globally, many studies have addressed parental stature as a risk factor of stunting. However, systematic reviews that summarized and critically appraised the relationship between parental stature and the incidence of stunting in Indonesia was scarce. This systematic review aimed to assess parental stature as a risk factor for stunting among Indonesian toddlers. Studies were searched through PubMed (MEDLINE), Google Scholar and Mendeley. Studies on Indonesian toddlers under five years old living in Indonesia were included. The quality of the included studies was assessed using Joanna Briggs Institute (JBI) critical appraisal tool. Data were extracted using a standardized data extraction form and were analyzed using Cochrane's RevMan 5.3. Twenty-seven prospective and retrospective cohort, case-control and cross-sectional studies were included with a total 4041 children. Out of 27 included studies, eight were found to be of low, seven of moderate and twelve of high quality. The result showed that parental stature was associated with the incidence of stunting among toddlers in Indonesia, either the mother only (odds ratio (OR) 1.92; 95% confidence interval (95%CI: 1.71-2.15), the father only (OR 5.21; 95%CI: 1.71-15.86) or both parents (OR 3.01; 95%CI: 2.41-3.75). However, studies on father and both parental statures suffered from substantial heterogeneity, imprecision and mixed qualities, therefore, they should be cautiously interpreted.