Factors associated with enrollment in a randomized clinical trial of docosahexaenoic supplementation in toddlers born preterm.

Background/aims: To assess pre- and postnatal factors associated with participation in a randomized clinical trial of daily docosahexaenoic supplementation in toddlers born preterm. We hypothesized that enrolled families would not differ from those who did not participate. Method: Children eligible...

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Published in:Clinical Trials Vol. 23; no. 1; pp. 99 - 109
Main Authors: Boone, Kelly M, Miglin, Amanda, Taylor, Paige L, Klebanoff, Mark A, Keim, Sarah A
Format: research tables/charts Journal Article
Published: Sage Publications, Ltd. Feb2026
Online Access:View this record in EBSCOhost
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      dt: Feb2026
      vid: 23
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      pub: Sage Publications, Ltd.
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        10.1177/17407745251387983
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        atl: Factors associated with enrollment in a randomized clinical trial of docosahexaenoic supplementation in toddlers born preterm.
      aug:
        au:
          Boone, Kelly M
          Miglin, Amanda
          Taylor, Paige L
          Klebanoff, Mark A
          Keim, Sarah A
        affil: Center for Biobehavioral Health, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
      sug:
        subj:
          Research Subject Recruitment
          Randomized Controlled Trials
          Dietary Supplementation
          Docosahexaenoic Acids Therapeutic Use
          Infant, Premature
          Sociodemographic Factors
          Funding Source
          Human
          Infant, Newborn
          Prospective Studies
          Record Review
          Logistic Regression
          Odds Ratio
          Confidence Intervals
          Caregivers
          Marital Status
          Descriptive Statistics
          Docosahexaenoic Acids Administration and Dosage
          Drug Compounding
          Arachidonic Acids Administration and Dosage
          Corn Oil Administration and Dosage
          Data Analysis Software
          Univariate Statistics
          Birth Weight
          Infant, Newborn: birth-1 month
      ab: Background/aims: To assess pre- and postnatal factors associated with participation in a randomized clinical trial of daily docosahexaenoic supplementation in toddlers born preterm. We hypothesized that enrolled families would not differ from those who did not participate. Method: Children eligible for the Omega Tots trial were born at <35 completed weeks' gestation and were 10–16 months of age at recruitment. Eligibility data abstracted from the medical record were linked with the child's birth certificate. The primary outcome was whether the family enrolled, declined, or was non-responsive to recruitment efforts. Log-binomial regression calculated risk ratios (RR). Results: 316 families enrolled, 1089 declined, and 1081 were non-responsive. Enrolling, rather than not enrolling, was negatively associated with caregivers being married (RR = 0.76, 95% CI: 0.62, 0.94), identifying as White (RR = 0.76, 95% CI: 0.60, 0.94), and children being born at later gestational ages (RR1-week = 0.96, 95% CI: 0.92, 0.99); positively associated with children weighing <1500 g at birth (RR = 1.26, 95% CI: 1.01, 1.55), attending a neonatology specialty clinic (RR = 1.46, 95% CI: 1.19, 1.80), family participation in WIC (RR = 1.39, 95% CI: 1.13, 1.72), and living in an urban zip code (RR = 1.68, 95% CI: 1.30, 2.17). Varied associations with enrolling rather than declining, enrolling rather than being non-responsive, and declining rather than being non-responsive were identified. Conclusions: Maternal, child, and socioeconomic characteristics were different for families who enrolled, relative to families who did not enroll. Factors associated with enrollment differed between families who were non-responsive to recruitment attempts and those who declined enrollment, with additional differences identified between families who declined participation and those who were non-responsive. Recruitment initiatives tailored to ensuring enrollees reflect the source population may improve generalizability.
      pubtype: Academic Journal
      doctype:
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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