Investigation of DHA Intake in Pregnant and Lactating Women in China

Study Overview
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Brief Summary
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This is a multi-center, cross-sectional, non-interventional, observational study--an investigation carried out in 816 pregnant (pregnant week 17±2 group and pregnant week 39±2 group; 408 cases in each group) and 408 lactating women (post-natal lactation day 42±7 group) from a total of 4 sites in 3 typical areas (1 coastal regions, 2 inland regions and 1 lake regions) in China to study the correlation between DHA intake and DHA concentrations in blood and breast milk.

Detailed Description
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This is a multi-center, cross-sectional, non-interventional, observational study in 816 pregnant (gestation week 17±2 group and gestation week 39±2 group 408 cases in each group) and 408 lactating women (post-natal lactation day 42±7 group) from a total of 4 sites in 3 typical areas (1 coastal regions, 2 inland regions and 1 lake regions) in China to study the correlation between DHA intake and DHA concentrations in blood and breast milk. Investigators are mainly physicians majoring in gynaecology and obstetrics, etc. During visits, the study physician will record the patient's social demographic data, disease and relevant medication history, review her medical records, assess DHA intake by the DHA Screener, and determine DHA concentrations in erythrocyte membrane, plasma and breast milk, so as to validate the feasibility of DHA Screener as DHA intake assessment tool for determining DHA concentrations in the body. Subjects meeting inclusion criteria and non of the exclusion criteria will be informed of relevant information of the study. Subjects should be voluntarily consent to participate in the study and sign the informed consent form. Screening of the study is scheduled for as long as 5 months. In this study, additional examinations or other interventions are not required.

Official Title
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Investigation of DHA Intake in Pregnant and Lactating Women in China

Conditions
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Nutrient Intake Disorder

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: PREGNANT WOMEN: Healthy women presenting at their week 17±2 and week 39±2 obstetric examination; 18-40 years of age; Monocyesis; Having signed the informed consent form voluntarity before participating in the study. LACTATING WOMEN: Healthy women presenting at their day 42±7 post-natal visit; 18-40 years of age; Monocyesis; Having signed the informed consent form voluntarily before participating in the study Exclusion Criteria: Administration of DHA supplements (milk powder for pregnant women, DHA soft capsule, Zmarto, NURIZ, Naturies, HeadDHA, Beibeicong, Nutrimed etc); Still experiencing severe vomiting after 16 weeks of pregnancy; Women who have heart, liver, kidney, (ALT and AST≥ 1.5 times of normal upper limit, Cr>normal upper limit) or severe lung disease or laboratory abnormality (i.e.lipid metabolism disorder) that may interfere with the interpretation of study results, as indicated in previous examinations; Pregnant woman currently participating in other clinical trials or who have participated in another clinical trial in the last 30 days; Women who in the judgement of the investigator cannot be expected to comply with the protocol or study procedures.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 40 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| To evaluate the feasibility in using DHA Screener for determination of internal DHA concentration | Correlation between DHA Screener and DHA concentration in plasma; Correlation between DHA Screener and DHA concentration in erythrocyte membrane; Correlation between DHA Screener and DHA concentration in breast milk. | 5 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| To compare the correlation between DHA Screener and RBC DHA among different subgroups. To compare DHA intake assessed by DHA Screener against Chinese recommendations of DHA intake. | To assess correlation between DHA Screener assessment tool and RBC DHA among study groups; To compare DHA intake assessed by DHA Screener against Chinese recommendations of DHA intake. | 5 months | 
| To compare DHA intake assessed by DHA Screener against Chinese recommendations of DHA intake. | To compare DHA intake assessed by DHA Screener against Chinese recommendations of DHA intake. | 5 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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DHA intake;, Plasma;, Erythrocyte;, Breast milk.