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Table 1 Data planned to be collected at recruitment phase up to delivery

From: A birth cohort study in the Middle East: the Qatari birth cohort study (QBiC) phase I

Follow-up Questionnaires Clinical examination Ultrasound measurements Biological samples
Mother
 12–15 weeks General
FFQ
24 h recall
Anthropometric characteristics
Skinfolds
Bioimpedance
SCORAD test
Metabolic syndrome
Blood pressure
Spirometry
Thyroid malfunction
Gestational diabetes
Placental function: resistance indices of the uterine and umbilical arteries Blood
Urine
Saliva
Feces
 32 weeks General
FFQ
24 h recall
Anthropometric characteristics
Bioimpedance
Skinfolds
Blood pressure
Spirometry
Thyroid malfunction
Gestational diabetes
Placental function: resistance indices of the uterine and umbilical arteries Blood
Urine
Saliva
Feces
 Delivery Psychological Gestational diabetes, preeclampsia, hypertension   
Father
 1st Visit General Anthropometric characteristics
Bioimpedance
Skinfolds
Blood pressure
  Blood
Urine
Saliva
Feces
Semen
Fetus
 12–15 weeks    CRL, HC, BPD, FL, AC  
 32 weeks    HC, BPD, FL, AC
Organ development: brain, heart, kidneys, blood flow
 
 Birth   Clinical records: induced abortion fetal or perinatal loss, caesarean Sex, weight, length, HC, AC, Apgar score Cord blood
Cord tissue
Placenta
Meconium
Colostrum
Breast milk
Hair
  1. Abbreviations: FFQ Food Frequency Questionnaire, CRL Crown-rump length, HC head circumference, BPD biparietal diameter, FL femur length, AC Abdominal circumference