Table 3:

The percent of participants from the FFD study and the PROGRESS study that were classified by the mathematical model into a different gestational weight gain category. The majority of the misclassifications involved participants who self-reported a lower pre-pregnancy weight from the model predictions. The majority of misclassifications that occurred in both the FFD and PROGRESS studies were women who self-reported pre-pregnancy weights into a normal weight category, but were classified by the model into an overweight category.

Study	%Misclassified Total	%Misclassifications into a lower BMI group	%Model Classified Overweight, Self- reported Normal Weight	%Model Classified with Obesity, Self- reported Overweight
FFD	15%	89%	67%	24%
PROGRESS	28%	85%	64%	24%