pregnant woman
Conditions
Interventions
The research subjects in Group A (authorizing group) are clearly advised and advised that the expert (physician) is the informant.
The same information is advised to the research subjects in group B (
Sponsors
Keio University
Juntendo University Nerima Hospital
Eligibility
Sex/Gender
Female
Inclusion criteria
Inclusion criteria: First-time mothers with a gestational age of at least 16 weeks and a pre-pregnancy BMI of 18.5 to 24.9 kg/m2. Among all pregnant women who visited the research facility (Juntendo Nerima Hospital), pregnant women who meet all of the following selection criteria and none of the exclusion criteria will be included in the study. 1. be less than 20 weeks' gestation (16-19 weeks' gestation) at the time of consent 2. have a pre-pregnancy BMI of 18.5-24.9 kg/m2 3. have a singleton pregnancy 4. you must use an iPhone on a daily basis 5. have all checkups at the facility until the 1-month postpartum checkup
Exclusion criteria
Exclusion criteria: 1. age less than 20 years old 2. have a multiple pregnancy 3. not using an iphone with ios 14.1 or later 4. who have been diagnosed with diabetes prior to pregnancy or obvious diabetes or pregnancy complications during pregnancy 5. who have any disease or complication and are receiving nutritional guidance 6. Pre-pregnancy BMI greater than I18.5 or less than 25 7. who are not able to communicate in Japanese 8. who are judged to be inappropriate for this study by the physician in charge
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Blood vitamin D levels (24 weeks gestation, 36 weeks gestation, and at delivery) | — |
Secondary
| Measure | Time frame |
|---|---|
| Blood data (mid- and late-term pregnancy: bone metabolism (vitamin D concentration, PTH intact, zinc, alkaline phosphatase), glucose metabolism (blood glucose) Lipid metabolism (total cholesterol, HDL cholesterol, triglycerides, LDL cholesterol), iron metabolism (hemoglobin), protein metabolism (total albumin) Bone density, body weight, body composition, systolic and diastolic blood pressure, energy intake, nutrient intake, food intake ((20 weeks gestation, 24 weeks gestation, 28 weeks gestation, 36 weeks gestation, 1 month postpartum) Questionnaire on motivational attitudes regarding time outside, vitamin D production from questionnaire, bone literacy, and general health (20 weeks gestation, 24 weeks gestation, 28 weeks gestation, 36 weeks gestation, and 1 month postpartum) Questionnaire on attitudes toward self-management skills (16-19 weeks gestation, 20 weeks gestation, 28 weeks gestation, 34 weeks gestation, 1 month postpartum) Questionnaire on whether or not the woman is prone to depression Questionnaire on the progress of the pregnancy and postpartum period and the nutritional status of the child Questionnaire asking about the physical condition and lifestyle of the child and the mother during the first month postpartum (first month postpartum) App usage history (registration information, input information, operation history, etc.) Location information (GPS, Wi-Fi access points) Number of steps taken during pregnancy Date of delivery, weight just before delivery, method of delivery, amount of blood loss, height and weight of the baby, sex, life and death of the baby, presence or absence of gestational diabetes (presence or absence of gestational hypertension (if present, whether or not antihypertensive medication is taken), educational background, annual income, and impressions of participation | — |
Countries
Japan
Contacts
Public ContactYuka Honda
Keio University Faculty of Environment and Information Studies
Outcome results
None listed