Investigation the relationship between dietary diversity scores and nutritional status of elementary school children in city of Jahrom
Background: Under nutrition in children is one of the common public health issues in developing countries. The prevalence of childhood obesity has increased all around the world. On the other hand,healthy diet nutrition is one of key component of the health status. Household Dietary Diversity Scores (HDDS),present a good reflection of the dietary quality. The aim of this study was to investigate the relationship between dietary diversity scores and nutritional status of elementary school children in city of Jahrom. Methods: This was a case-control study involving 148 school children with underweight,stunting,overweight,a nd obesity as case and 170 students with desirable anthropometric status as control group,aged between 7 and 12 years,of both gender from 10 public and private elementary schools. Anthropometric measurements including weight (in kg),and height (in cm) was measured. WHO AnthroPlus was used to compute the z-scores and percentiles for weightfor- age,height-for-age,and body mass index for-age. Internationally acceptable cutoff points were used for detecting overweight,obesity,underweight and stunting. Dietary diversity scores was assessed with a single 24-hour dietary recall (24hR),by use of Kant method which foods were divided to 5 groups. Metabolic equivalents,or METs,is used to assess the physical activity levels. Data were analyzed by SPSS version16 and P values less than 0.05 were considered statistically significant. Results: The mean age of the students in case and control groups was 9.8± 1.6 and 9.4± 1.7 years respectively. Underweight with weight-for-age (WAZ) < -2 Z-scores,stunting with height-for-age (HAZ) < -2 Z-scores,and Body Mass Index (BMI)-for-age Z-scores (BAZ) >2 for obesity were defined .The mean of DDS in case and control groups were 3.85±1.16 and 3.74±1.1. There was no difference between the two the groups in dietary diversity scores. Conclusions: There was no significant relationship between Z-score indices and DDS in case and control group. Further studies are needed to investigate the effect of other environmental factors that improve student health status.