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Table 3 Summary of participant follow-up and data collection

From: Study protocol: Asking QUestions about Alcohol in pregnancy (AQUA): a longitudinal cohort study of fetal effects of low to moderate alcohol exposure

Follow up timing Year Who is invited? What is the nature of follow-up? What is being measured?
12-18 weeks gestation 2011-2012 All participants: Questionnaire 1; Maternal buccal Demographics, obstetric history, current pregnancy dates, health, alcohol & other lifestyle, family & relationships Alcohol metabolism
26 weeks gestation 2011-2012 All participants: Questionnaire 2 Diet, health, alcohol & other lifestyle
35 weeks gestation 2011-2013 All participants: Questionnaire 3 Obstetric complications health, alcohol & other lifestyle
Birth 2011-2013 All participants: Access to hospital records; Placenta, cord blood, infant buccal Perinatal information Infant epigenetics
12 months after birth 2013-2014 All participants: Questionnaire 4 Birth and coping, breast feeding, child health, child development, health, alcohol & other lifestyle, family & relationships, combining work & family
   Subset of participants: 3D photography of child’s face Craniofacial morphometrics
24 months after birth 2014-2015 All participants: Questionnaire 5 Child health, child development, health, alcohol & other lifestyle, family & relationships, combining work & family
   Subset of participants: Developmental assessment Detailed child development