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Crush: A randomized trial to evaluate the impact of a mobile health app on adolescent sexual health
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2 2023
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Source: J Adolesc Health. 72(2):287-294
[PDF-472.05 KB]
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Alternative Title:J Adolesc Health
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Personal Author:
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Description:Purpose:
Mobile technology allows delivery of sexual and reproductive health (SRH) information directly to youth. We tested the efficacy of Crush, a mobile application aimed at improving sexual health by promoting the use of SRH services and contraception among female adolescents.
Methods:
We recruited 1,210 women ages 14 to 18 years through social media advertising and randomized them into a Crush intervention group and a control group that received a wellness app. At 3 and 6 months post-randomization, we compared changes from baseline in behaviors, attitudes, self-efficacy, perceived social norms, birth control knowledge, perceived control and use intentions, and SRH service utilization. Odds ratios were estimated with multivariable logistic regression and adjusted for baseline outcome, age, race/ethnicity, mother’s education, and sexual experience.
Results:
There was no difference in accessing SRH services according to study group. Three months post-baseline, Crush users had higher odds (p<0.05) than control participants of reporting confidence in accessing SRH services (aOR= 1.6, 95% CI: 1.1–2.3) and of believing that it is a good thing to use birth control consistently (aOR= 2.3, 95% CI: 1.4–3.8). Six months post-baseline, Crush users had higher odds than control participants of reporting they can control whether birth control is used every time they have sex (aOR= 1.8, 95% CI: 1.2–2.6) and perceiving they would get pregnant if they did not use birth control (aOR: 1.5, 95% CI: 1.1–2.2). Impacts on other behavioral constructs were also found.
Conclusions:
Crush was associated with improvements in knowledge, attitudes and self-efficacy related to key SRH behaviors and may be a strategy to deliver SRH education to adolescent women. Studies including larger numbers of sexually active adolescents are needed to demonstrate behavioral impacts.
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Pubmed ID:36424332
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Pubmed Central ID:PMC11036548
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Volume:72
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Issue:2
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