Sources of Bacterial Contamination in Human Milk Samples From the MiLC Trial

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

52 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-06-10

Study Completion Date

2017-09-03

Brief Summary

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This observational study is a sub-study of the MiLC Trial (ClinicalTrials.gov Identifier: NCT03123874). Our objective is to characterize the bacterial communities of women's breasts, hands, their pump and milk collection kit, and their babies' mouths among the participants of the MiLC Trial. As part of the original protocol, we collected swabs of each of these areas from each dyad before women pumped with their own pumps. By characterizing these communities, we can identify from where the bacteria in human milk (HM) originates, and determine whether pumping with mother's own pumps enriches the bacterial communities of HM compared to pumping with a sterile pump.

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Detailed Description

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Conditions

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Bacterial Communities

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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MiLC Cohort

Participants donated HM from two consecutive pumping sessions at home. Women pumped once with their own pump and milk collection kit, and once with a sterile and sterile collection kit. Both pumping sessions occurred at participants' homes between 0700 and 1100 hours. The second pumping session occurred within 3 hr (+/- 30 min) after the beginning of the first. Randomization was used to determine which pump was used first. Women elected from which breast they donated their HM and were asked not to nurse on that side 2 hr before the first pumping session and not until after the second. Before women pumped with their own pump, swabs were taken of the breast from which HM was donated, the women's dominant hand, their own bottle/flange, their own pumps (port of pump and tubing), and their babies' mouths.

There was only one group but stratified enrollment was used to ensure equal numbers of women whose infants consumed HM only and women whose infants consumed HM and complementary foods.

No interventions assigned to this group