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Table 4 Schedule of surveillance, interviews and consent interactions in the main JiVitA-1 trial

From: A cluster-randomized, placebo-controlled, maternal vitamin a or beta-carotene supplementation trial in bangladesh: design and methods

Survey/Questionnaire Scheduled at Contents Conducted by * Consent/Reconsent
Women's Enrollment Survey Beginning of trial Baseline census of all women of reproductive age, enrollment into surveillance FD Y
Newly Married Woman Survey Ongoing, 5- weekly Allows enrollment of eligible, newly married women FD Y
Pregnancy Surveillance Survey Ongoing, 5- weekly Urinary hCG-based identification of new pregnancies FD Y, for urine test
Women's Consent
Interview
Pregnancy identification Informing women about the trial, obtaining consent for interviews and supplementation TL Y
Pregnancy Dosing Visits Weekly Weekly supplementation of enrolled pregnant women FD N
Pregnancy Enrollment Questionnaire First week after consent Baseline characteristics, pregnancy history, 7 d diet, 7 d/30 d morbidity, exposures FI N
Socioeconomic Status Questionnaire First week after consent Education, employment of self and husband, household assets FI N
Family History Questionnaire First week after consent Parental vital status, cause of death, chronic morbidity FI N
Late Pregnancy Questionnaire At 28 weeks gestation 7 d diet, 7 d/30 d morbidity, exposures FI N
Three-Month Postpartum Questionnaire At 12 weeks postpartum Complications of labor and delivery, 7 d diet, 7 d/30 d morbidity, exposures FI N
Six-Month Postpartum Questionnaire At 24 weeks postpartum 7 d diet, 7 d/30 d morbidity, exposures FI N
Miscarriage/Stillbirth Questionnaire 4 weeks after event Complications of labor and delivery, care-seeking FI Y
Verbal Autopsy - Infant 4 weeks after event Enhanced from WHO standard instrument FI Y
Verbal Autopsy - Mother 4 weeks after event Enhanced from WHO standard instrument RP Y
  1. * FD = Field Distributor, must be local resident with minimum education level of 8th grade TL = Team Leader, must be local resident with a minimum of a college degree
  2. FI = Field Interviewer, must be local resident with a minimum of a college degree
  3. RP = Research Physician, minimum MBBS-degree, with specific verbal autopsy training