Table 3 SWIFT and SWIFT Offspring studies: description of data elements and timeline
Methodology | Data source | SWIFT Offspring study data collection | Data collection methods | |||
|---|---|---|---|---|---|---|
KPNC Hospital (at birth) | Baseline In-person Exam (6–9 weeks) | Follow-up In-person Exam (6 months) | Follow-up In-person Exam (12 months) | |||
Infant Anthropometry: | In-person exam | X* | X | X | X | *EMR at birth, and Research quality instruments and standard protocols |
Weight (Digital scale, Tanita); Length (Measuring board, Seca); | ||||||
Skinfold thicknesses (Holtain calipers) triceps, suprailiac, and subscapular sites; Head and Abdominal circumferences | ||||||
Breastfeeding Intensity/duration based on quantitative measures of breast milk and infant formula use; | In-person exam, telephone interviews, mailings | X | X | X | X | Diary birth to 6Â weeks, Monthly mailed surveys, Recall past 7Â days at in-person exams |
Infant Diet History: types and quantity of liquids, milk, sugar-sweetened beverages, juices; monthly introduction of foods (7-day recall, 6-month history) | In-person exam, telephone interviews, mailings | --- | X | X | X | 7-day recall of diet intake, Dietary history past two age introduced; types and amounts food items |
Newborn: birth weight, length, gestational age, sex, Apgar, size hospital stay, | KP EMR VDW | X | --- | --- | --- | Electronic clinical medical records |
Maternal Anthropometry: weight, height, waist circumference, % body fat, Bioelectrical Impedance Assessment (BIA) - RWJ | In-person exam | --- | Xa | X | Xa | Anthropometry using research quality, calibrated instruments and standardized protocols |
SES: family income, maternal education, occupation | Surveys | X | --- | --- | --- | SWIFT study |
Intrauterine: Pre-pregnancy BMI, GDM severity: 3-h 100 g OGTT, type of GDM treatment, gestational weight gain, | KP Prenatal Care | X | X | --- | --- | Electronic Clinical databases (EMR) – medical records |
Race/ethnicity, delivery method pregnancy complications | KP EMR VDW | X | X | --- | --- | Surveys, Electronic medical records |
Family history of diabetes, paternal BMI, sleep habits, Maternal depression, alcohol, smoking, physical activity, caffeine, dietary intake | Surveys | --- | X | --- | X | Validated and Standardized questionnaires. |
CES-D | ||||||
PPAQ | ||||||
PrimeScreen | ||||||
Other | ||||||
Infant Health – medications, medical conditions | Survey |  | X | X | X | Standardized questions |
Infant Sleep Habits | Survey | -- | X | X | X | Sleep habits |
Infant Development and Activity | Survey | -- | X | X | X | Standardized questions |
Temperament (Rothbart scales) | IBQ-R | --- | X | X | --- | Validated questionnaire |
Toddler Behavior Questionnaire (Goldsmith scales) | TBAQ | --- | --- | --- | X | Validated questionnaire |