Universidad Peruana Cayetano Heredia

The ARMADILLO text message intervention to improve the sexual and reproductive health knowledge of adolescents in Peru: Results of a randomized controlled trial

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dc.contributor.author Perez-Lu, Jose E.
dc.contributor.author Guerrero, Fiorella
dc.contributor.author Cárcamo Cavagnaro, César Paul Eugenio
dc.contributor.author Alburqueque, Monica
dc.contributor.author Chiappe Gutierrez, Marina Angelica
dc.contributor.author Hindin, Michelle J.
dc.contributor.author Habib, Ndema
dc.contributor.author Say, Lale
dc.contributor.author Gonsalves, Lianne
dc.contributor.author Bayer, Angela M.
dc.date.accessioned 2022-03-23T16:54:21Z
dc.date.available 2022-03-23T16:54:21Z
dc.date.issued 2022
dc.identifier.uri https://hdl.handle.net/20.500.12866/11494
dc.description.abstract Background The ARMADILLO Study determined whether adolescents able to access SRH information on-demand via SMS were better able to reject contraception-related myths and misconceptions as compared with adolescents receiving pushed SMS or no intervention. Trial design This trial was an unblinded, three-arm, parallel-group, individual RCT with a 1:1:1 allocation. Trial registration: ISRCTN85156148. Methods This study was conducted in Lima, Peru among participants ages 13–17 years. Eligible participants were randomized into one of three arms: Arm 1: access to ARMADILLO’s SMS information on-demand; Arm 2 access to ARMADILLO SMS information pushed to their phone; Arm 3 control (no SMS). The intervention period lasted seven weeks. At baseline, endline, and follow-up (eight weeks following endline), participants were assessed on a variety of contraception-related myths and misconceptions. An index of myths-believed was generated. The primary outcome assessed the subject-specific change in the mean score between baseline and endline. Knowledge retention from endline to follow-up was also assessed, as was a ‘content exposure’ outcome, which assessed change in participants’ knowledge based on relevant SMS received. Results In total, 712 participants were randomized to the three arms: 659 completed an endline assessment and were included in the primary analysis. Arm 2 participants believed fewer myths at endline compared with control arm participants (estimated subject-specific mean difference of -3.69% [-6.17%, -1.21%], p = 0.004). There was no significant difference between participants in Arm 1 vs. the control Arm, or between participants in Arm 1 vs. Arm 2. A further decrease in myths believed between endline and follow-up (knowledge retention) was observed in all arms; however, there was no difference between arms. The content exposure analysis saw significant reductions in myths believed for Arm 1 (estimated subject-specific mean difference of -9.47% [-14.83%, -4.11%], p = .001) and Arm 2 (-5.93% [-8.57%, -3.29%], p < .001) as compared with the control arm; however Arm 1’s reduced sample size (n = 28) is a severe limitation. Discussion The ARMADILLO SMS content has a significant (but small) effect on participants’ contraception-related knowledge. Standalone, adolescent SRH digital health interventions may affect only modest change. Instead, digital is probably best used a complementary channel to expand the reach of existing validated SRH information and service programs. en_US
dc.language.iso eng
dc.publisher Public Library of Science
dc.relation.ispartofseries PLoS ONE
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject controlled study en_US
dc.subject female en_US
dc.subject human en_US
dc.subject major clinical study en_US
dc.subject male en_US
dc.subject randomized controlled trial en_US
dc.subject Peru en_US
dc.subject adolescent en_US
dc.subject nonhuman en_US
dc.subject article en_US
dc.subject follow up en_US
dc.subject human experiment en_US
dc.subject outcome assessment en_US
dc.subject animal en_US
dc.subject Animals en_US
dc.subject contraception en_US
dc.subject attitude to health en_US
dc.subject sample size en_US
dc.subject reproductive health en_US
dc.subject armadillo en_US
dc.subject Armadillos en_US
dc.subject transcription initiation en_US
dc.title The ARMADILLO text message intervention to improve the sexual and reproductive health knowledge of adolescents in Peru: Results of a randomized controlled trial en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1371/journal.pone.0262986
dc.relation.issn 1932-6203


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