Preventing Excessive Gestational Weight Gain Via Short Mobile Messages in WIC


The objective of this trial was to investigate the effect of educational short message service (SMS), or text messages, on gestational weight gain (GWG) in a low-income population.

Full Title of Study: “Preventing Excessive Gestational Weight Gain Via Short Mobile Messages in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC)”

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Randomized
    • Intervention Model: Parallel Assignment
    • Primary Purpose: Prevention
    • Masking: Single (Care Provider)
  • Study Primary Completion Date: October 29, 2018


  • Behavioral: Nutrition and physical activity intervention
    • Messages sent on nutrition and physical activity in pregnancy
  • Behavioral: Control
    • Messages sent on general health during pregnancy

Arms, Groups and Cohorts

  • Experimental: Nutrition and physical activity intervention
  • Other: Control

Clinical Trial Outcome Measures

Primary Measures

  • Change between pre-pregnancy weight and last weight taken before delivery
    • Time Frame: From date of randomization until delivery of child (e.g. up to 25 weeks)
    • Total weight gained during pregnancy

Participating in This Clinical Trial

Inclusion Criteria

  • 15-20 weeks gestational age and 18 years of age or older at time of recruitment
  • body mass index (BMI) of 25-45 kg/m2 in the first trimester
  • possession of a cellular phone with the ability to receive text messages without a charge

Exclusion Criteria

  • conditions requiring a special diet
  • multiparous pregnancies
  • unable to consent to participate
  • unwilling to be randomized

Gender Eligibility: Female

Minimum Age: 18 Years

Maximum Age: N/A

Are Healthy Volunteers Accepted: Accepts Healthy Volunteers

Investigator Details

  • Lead Sponsor
    • University of Hawaii
  • Provider of Information About this Clinical Study
    • Sponsor

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