Browsing by Author "Rivera, Sebastián"

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    Cross-Cultural Adaptation and Validation of a Generic Acceptability Questionnaire to Spanish
    (2025) Rivera, Sebastián; Silva Letelier, Catherine Paola; Retamal Walter, Felipe; Fuentes López, Eduardo; Contreras, Jimena; Marcotti, Anthony; Alzate Pamplona, Fraidy Alonso
    To adapt and validate the generic TFA acceptability questionnaire to Spanish. Methods. In the initial phase of this two-phase observational study, a translation and adaptation of the original instrument was performed. The second phase con-sisted of applying this version to 194 older adults after a pilot hearing screening and a standard preventive medical examination. Construct validity was assessed by Exploratory Factor Analysis, and internal consistency with McDonald’s omega (ω). Results. Both procedures yielded the same two-factor solution. The first factor comprised items related to “affective attitude”, “perceived effectiveness”, “inter-vention coherence”, and “self-efficacy”; the second factor included items on “ethi-cality” and “opportunity costs”. The item ‘burden’ was removed due to its lack of significant factor loadings. The first factor accounted for 18.96% of the variance of the hearing screening and 26.28% of the preventive medical examination; the second accounted for 14.97% and 20.44%, respectively. Regarding reliability, the instrument demonstrated an ω = 0.61 for the hearing screening and ω = 0.73 for the preventive medical examination. Conclusion. The final instrument comprises six items evaluating specific acceptability constructs and one item addressing overall acceptability. It features a two-factor underlying structure, demonstrating high external reliability and acceptable internal consistency.
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    Effectiveness of active communication education to improve hearing aid usage among Chilean older adults: a randomised clinical trial
    (2025) Marcotti, Anthony; Rivera, Sebastián; Silva Letelier, Catherine Paola; Martinez-Amezcua, Pablo; Fuentes López, Eduardo
    Objective: To assess the effectiveness of the Active Communication Education (ACE) program in improving usage, perceived benefit, and success with hearing aids (HAs).Design: A multicentre, double-blind, randomised parallel design clinical trial with masked outcome assessments was conducted at primary healthcare centres. Participants were randomised into either an intervention group (ACE) or a control group (social intervention). The primary outcome was HAs usage (question 1 of IOI-HA) and secondary outcomes were perceived benefit (question 2 of IOI-HA) and success with HAs (usage for at least 1 hour/day as per question 1 of IOI-HA and at least moderate perceived benefit as per question 2 of IOI-HA). Data collection occurred before, right after, and at 6 and 12 months following the intervention.Study sample: 114 older adults who use HAs.Results: The intervention group significantly increased HAs usage compared to baseline right after the intervention, as well as at 6- and 12-month follow-ups, in comparison to the control group. Secondary outcomes also showed improvements at all follow-up measurements, although these were less consistent.Conclusions: The ACE program is an effective strategy for enhancing HAs usage among older adults, with improvements that are sustainable over time.
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    Effectiveness of the active communication education program in improving the general quality of life of older adults who use hearing aids: a randomized clinical trial
    (2024-10-12) Marcotti, Anthony; Rivera, Sebastián; Silva Letelier, Catherine; Galaz Mella, Javier; Fuentes López, Eduardo
    Abstract Background Hearing loss in older adults affects general, generic health-related and disease-specific quality of life (QoL). The conventional strategy to address it is through hearing aids, which have been shown to improve disease-specific QoL. However, the long-term results regarding general quality of life are unknown, and communication problems and stigma associated with hearing loss may persist. An effective intervention strategy to address these problems is group communication programs, most notably Active Communication Education (ACE). This program has been shown to increase communication strategies and reduce communication activity limitations and participation restrictions. These precedents allow us to hypothesize that this program could improve general QoL. Methods A randomized clinical trial was conducted on 114 older adult hearing aid users. Fifty-four subjects composed the intervention group that received the ACE program, while 60 subjects composed the control group that received an informational-lectures type intervention. The WHOQOL-BREF questionnaire was used to measure general QoL. Measurements were taken before and right after the intervention, with follow-ups at 6 and 12 months. Multilevel linear mixed models were estimated, considering the WHOQOL-BREF dimension scores and total score as the outcomes, and an interaction term between time since intervention and group as the predictor. Within- and between-group comparisons were made. Results Compared to the baseline time-point, the ACE group showed significant improvements right after the intervention, and at the 6-month and 12-month follow-ups for the dimensions of psychological health, social relationships, environment, and total score. Compared to the control group, the ACE group exhibited significantly greater improvements in the social dimension at all postintervention assessments, as well as in the environment dimension and total score at the 12-month follow-up. Conclusions The ACE program improved general QoL in terms of social relationships and environment dimensions, which lasted up to 12 months after the intervention. Therefore, ACE is positioned as an effective complement for HA users, enhancing and delivering new benefits related to broader aspects of QoL not necessarily tied to health. Trial registration ISRCTN54021189 (retrospectively registered on 18/07/2023).