HOW ACCURACY OF SCREENING GESTATIONAL DIABETES MELLITUS IN LOW RISK PREGNANCY WHO HAS WEIGHT GAIN MORE THAN 3 KG PER MONTH

Abstract

Objective : This research aimed to study the accuracy of diabetes screening in pregnant women who have low risk of developing gestational diabetes but gaining more than 3 kilograms per month. 

Methods : It is a retrospective cohort study. The subjects are pregnant women who came to receive screening for diabetes while pregnant since January 1, 2017 - May 31, 2019, and giving birth at Pakchong Nana Hospital, a total of 302 people, collected information from the medical records.

Results : The research results were found that primary screening (50g GST) of a total of 302 people, a total of 58 positive(19.2%) and two of them were diagnosed with gestational diabetes(0.7%). Statistical calculation results showed that the sensitivity was 0.7%, specificity was 99.3%, positive predictive value was 19.2% and negative predictive value was 80.8%. Evaluation the accuracy of this method by using Area under the curve (AROC) were found that AROC is 0.093 and the curve is skewed to the left. Therefore the result of diabetes screening in pregnant women who have low risk of developing gestational diabetes is not practical to use in medical practice.

Conclusions : Screening  for gestational diabetes by using criteria of gaining weight more than 3 kilograms in 1 month in pregnant women at low risk cannot actually be used in practice and cause unnecessary waste of resources and expenses as well.