40.
design : participants from the intervention group completed a baseline (pretest) of the harvard sevice food frequency questionnaire after the first prenatal visit.
41.the arvard sevice food frequency questionnaire has been validated for use in populations od low-income pregnant women.
42.the arvard sevice food frequency questionnaire asks about dietary intake over the past 4 weeks and includes targeted questions about fruit and vegetable intake.
43.it is a 4 page questionnaire that can be self-administered and requires only basic literacy skills.