Material and Method: Self-reporting questionnaire about demographic data and risk factors related to heartburn in those pregnant women between May 1 and July 31, 2010.

Results: Heartburn was found in 55 out of 452 pregnant women (12.2%). There were no significant differences in demographic characteristics and risk factors between the heartburn and non-heartburn groups. Consumption of alcoholic drinks was a reversely significant risk factor of heartburn (OR 0.11, CI 0.01 to 0.78) (p = 0.005).

Conclusion: Heartburn was not uncommon, and no associated factors were demonstrated.

Keywords: Heartburn, Risk factor, Pregnancy