PERINATOLOGY • Vol 24 • No. 1 • May–Aug 2023 • 47 Brief Analysis Permatasari RD. Correlation Between the Gestational Age Estimated Using LMP, USG, and the NBS Conclusion: GA estimations assessed using LMP, USG, and NBS were strongly correlated. Key Words: Correlation, estimation, gestational age, last menstrual period, ultrasonogram, New Ballard Score Introduction Gestational age (GA) is the period of time passed since the first day of the last menstrual period (LMP) and the current date of gestation, which is expressed in completed weeks.1 GA is essential for obstetricians to determine the treatment and management and for pediatricians to identify high-risk neonates expeditiously and avoid complications. Hence, the assessment must be carried out with a high level of precision.2,3 There are various methods for estimating GA, either prenatally or postnatally.2 Among all, the most frequently used methods are LMP, ultrasonography (USG), and the New Ballard Score (NBS). LMP is the most reliable parameter, yet many pregnant women do not remember their LMP or report inaccurate LMPs.4 If the LMP is unknown or uncertain, USG can be used to estimate the GA, and if the assessment cannot be done prenatally, it can be done postnatally using NBS.2,5 However, the GA estimation using USG and NBS is influenced by the examiner’s ability and experience.6,7 Aim To determine the correlation between GA estimated using LMP, USG, and NBS, to help health care workers determine the method of estimating GA if the LMP is unknown Materials and Methods Study design and population This was a cross-sectional, analytical study conducted at Dr Hasan Sadikin General Hospital (Bandung, West Java, Indonesia), from October to November 2020. Pregnant women and neonates born at the hospital between February 1 and April 30, 2020, who met the inclusion and exclusion criteria were considered. This study was approved by the Health Research Ethics Committee of the Faculty of Medicine, Padjadjaran University (Bandung, West Java, Indonesia), and the Health Research Ethics Committee of Dr Hasan Sadikin General Hospital. Inclusion and exclusion criteria The inclusion criteria were singleton pregnancy and neonates born at Dr Hasan Sadikin General Hospital between February 1 and April 30, 2020. The exclusion criteria were pregnancy with intrauterine growth restriction (IUGR) and incomplete medical records. Study procedure Medical records were taken from the Department of Child Health and the Department of Obstetrics and Gynecology from Dr Hasan Sadikin General Hospital, and the data of parameters such as obstetric status, the sex of the neonate, the time of performing the USG, and GA estimated using LMP, USG, and NBS were extracted. The data were analyzed statistically. Statistical analysis The statistical analyses were performed using SPSS Version 25 for Windows (IBM Corp, Armonk, NY, USA). Data were analyzed using Pearson correlation. P < .05 was considered statistically significant. Results During the study period, 606 pregnant women gave birth at the hospital. There were 115 pregnant women with twin pregnancies, 87 pregnancies had IUGR, and
RkJQdWJsaXNoZXIy MjAwNDg=