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Varying effect of a randomized toddler home safety promotion intervention trial by initial home safety problems
Wang, Y., Gielen, A. C., Magder, L. S., Hager, E. R., & Black, M. M. (2020). Varying effect of a randomized toddler home safety promotion intervention trial by initial home safety problems. Maternal and Child Health Journal, 24(4), 432-438. https://doi.org/10.1007/s10995-019-02845-x
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.
