Varying Effect of a Randomized Toddler Home Safety Promotion Intervention Trial by Initial Home Safety Problems

Yan Wang, Andrea C. Gielen, Laurence S. Magder, Erin R. Hager, Maureen M. Black

Research output: Contribution to journalArticlepeer-review


Objectives: Toddlers are vulnerable to unintentional injuries. A safety intervention targeting low-income families of toddlers, was effective at improving home safety. The current study examined whether the effect varies by initial home safety problems. Methods: 277 mother-toddler dyads recruited in the Mid-Atlantic region of the United States during 2007–2010 were randomized into safety promotion (n = 91) or attention-control groups (n = 186). Observers rated participants’ homes with a 9-item safety problem checklist at baseline, and at 6- and 12-months follow-up. Initial home safety problems were categorized as multiple (≥ 4 problems) and none/few (< 4). Linear mixed models assessed the moderating effect with a three-way interaction (time, intervention, and initial safety problems). Results: At 12 months, the intervention effect was stronger among families with multiple initial problems than no/few initial problems, with a reduction of 1.55 more problems among the families with multiple problems, compared to the families with no/few problems (b = − 1.55, SE = 0.62, p = 0.013). Conclusions: Interventions targeting families with multiple safety problems may be more effective than universal programming.

Original languageEnglish (US)
Pages (from-to)432-438
Number of pages7
JournalMaternal and child health journal
Issue number4
StatePublished - Apr 1 2020


  • Home environment
  • Intervention
  • Moderation
  • Toddler
  • Unintentional injury

ASJC Scopus subject areas

  • Epidemiology
  • Pediatrics, Perinatology, and Child Health
  • Obstetrics and Gynecology
  • Public Health, Environmental and Occupational Health


Dive into the research topics of 'Varying Effect of a Randomized Toddler Home Safety Promotion Intervention Trial by Initial Home Safety Problems'. Together they form a unique fingerprint.

Cite this