Association of Upper Arm Circumference and Vitamin D Levels in Third Trimester of Pregnancy with Birth Weight and Body Length

Welly Handayani, Nur Indrawati Lipoeto, Mayetti

Background: The aim of the study determine the association of upper arm circumference and vitamin D levels in third trimester of pregnancy with birth weight and body length. Methods: The study was conducted using a cross sectional study. The study was conducted at working area in Pariaman City and West Pasaman, West Sumatera Province, Indonesia from September to December 2018. The population in this study were third trimester of pregnant mother, sample size 58 people. Sampling technique with multistage random sampling. Hypothesis test used pearson correlation. A two-tailed P-value of <0.05 was considered statistically significant. Results: The mean of pregnant woman’s arm was 26.615 cm. The mean of vitamin D levels in pregnant women was 31.940 ng/ml The mean newborns weight in the normal range. The mean of baby's weight was 3,094 grams. The mean of baby's body length was 48.59 cm. There was a very weak positive correlation and between upper arm circumference pregnant women and newborn weight. There was a very weak positive correlation and not statistically significant between upper arm circumference pregnant women with body length. There was a very weak negative correlation and not statistically significant between Vitamin D levels of pregnant women with body length. There was a very weak negative correlation and statistically significant between the vitamin D levels of pregnant women and the baby's body weight. Conclusion: The better of upper arm circumference is not an indicator of normal birth weight and body length, so does vitamin D levels in the blood.