Prevalence and risk factors of gestational diabetes mellitus among pregnant patients visiting National Guard primary health care centers in Saudi Arabia.

To measure the prevalence of gestational diabetes mellitus (GDM) and its risk factors in Saudi Arabia, in comparison with developed and developing countries worldwide.  Methods: We enrolled pregnant women aged 15-45 years who visited 3 National Guard-Health Affairs' primary health care centers in Jeddah, Saudi Arabia between January 2017 and December 2017. We used stratified samples and computer-generated random numbers to collect data.