Measurement of maternal alcohol consumption in a pregnant population.

Alcohol is a known teratogenic substance that operates under a dose‐response mechanism. Before we conducted a larger study that examines the use of alcohol both before pregnancy and during pregnancy, it was important to pilot our method for measuring a pregnant mothers alcohol use that would allow us to capture the number of drinks consumed per day while addressing recall bias. The purpose of this study was 1) to pilot the Time Line Followback (TLFB) method developed by Sobell and Sobell (1992, Measuring Alcohol Use. Totowa, NJ: Humana Press) as a method for examining alcohol use during pregnancy and 2) to determine if the use of a study protocol that included biological markers of alcohol use would affect our ability to recruit subjects. Using a descriptive design, we tested our protocol for collecting alcohol use data with 10 mothers receiving prenatal care. We measured alcohol use using the TLFB method (Sobell and Sobell, 1992, Measuring Alcohol Use. Totowa, NJ: Humana Press, 1996). We also collected c...