Impact of maternal weight on the intra‐observer and inter‐observer reproducibility of fetal ultrasonography measurements in the third trimester

Objective To evaluate the effect of maternal weight on the intra‐ and inter‐observer reproducibility of third‐trimester ultrasonography fetal measurements. Methods The present prospective study, performed at a tertiary hospital, enrolled patients at between 35+0 weeks and 36+6 weeks of singleton pregnancies between January 1, 2015, and July 1, 2016. Fetal ultrasonography measurements were evaluated twice by a first observer and a third time by a second observer. Intra‐ and inter‐observer consistency were analyzed using the Cronbach α reliability coefficient, and measurement reproducibility was compared with patients stratified by a body mass index (BMI, calculated as weight in kilograms divided by the square of height in meters) of below 25 or at least 25. Results The study included 197 patients (133 with BMI