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Table 1 Longitudinal assessment timepoints: when, who, where.

From: Impact of iodine supplementation during preconception, pregnancy and lactation on maternal thyroid homeostasis and offspring psychomotor development: protocol of the IodineMinho prospective study

Moment Evaluation Filled in by: Local
M0 Recruitment (preconception or 1st trimester) Informed consent Participant Family health centers
Sociodemographic evaluation Participant
Clinical evaluation Clinician
Food frequency questionnaire Participant
3 days food record Participant Home
Blood and urine collection Clinical Analysis Laboratory
Thyroid ultrasound Clinician 2CA
M1 1st trimester of pregnancy Clinical evaluation Clinician Family health centers
Blood and urine collection Clinical Analysis Laboratory
M2 2nd trimester of pregnancy Clinical evaluation Clinician Family health centers
Blood and urine collection Clinical Analysis Laboratory
M3 3rd trimester of pregnancy Clinical evaluation Clinician Family health centers
Blood and urine collection Clinical Analysis Laboratory
Thyroid ultrasound Clinician 2CA
Fetal cardiotocography Clinician/Nurse Hospital Braga
M4 Birth Clinical evaluation Clinician Hospital Braga
Blood and urine collection - pregnant Nurse
Urine collection– Newborn
M5 3 months after birth Breast milk collection Nurse 2CA
Blood and urine collection – puerperal women
Urine collection – newborn
Thyroid ultrasound - puerperal women Clinician
Thyroid ultrasound - child
M6 18 months after birth Child psychomotor evaluation Researcher 2CA
Blood and urine collection –women Nurse
Urine collection – child