Effect of a Mobile Health Application With Nurse Support on Quality of Life Among Community-Dwelling Older Adults in Hong Kong

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Abstract
Importance: Mobile health (mHealth) smartphone apps are becoming increasingly popular among older adults, although the reactive care approach of these apps has limited their usability.Objective: To evaluate the effects of an interactive mHealth program supported by a health-social partnership team on quality of life (QOL) among community-dwelling older adults in Hong Kong.Design, Setting, and Participants: This was a 3-group, randomized clinical trial conducted in 5 community centers in Hong Kong from December 1, 2020, to April 30, 2022, with a last follow-up date of January 31, 2022. Participants included older adults aged at least 60 years who were living within the service area, used a smartphone, and had at least 1 of the following problems: chronic pain, hypertension, or diabetes. Data were analyzed from May 1 to 10, 2022.Interventions: Participants were randomly assigned to the mHealth with interactivity (mHealth+I) group, mHealth group, or control group. Participants in the mHealth+I group received the mHealth app and nurse case management supported by a health-social partnership team. The mHealth group received the mHealth app only. The control group received no mHealth app or health-social care services.Main Outcomes and Measures: The primary outcome was the change in QOL from baseline to 3 months after completion of the intervention.Results: Among 221 participants (mean [SD] age 76.6 [8.0] years; 185 [83.7%] women), 76 were randomized to the control group, 71 were randomized to the mHealth group, and 74 were randomized to the mHealth+I group. The most common chronic diseases or problems were hypertension (147 participants [66.5%]), pain (144 participants [65.2%]), cataracts (72 participants [32.6%]), and diabetes (61 participants [27.6%]). At 3 months after the intervention and compared with the intervention group, there were no statistically significant differences in either the physical component summary (mHealth+I: β = −1.01 [95% CI, −4.13 to 2.11]; P = .53; mHealth: β = 0.22 [95% CI, −3.07 to 3.50]; P = .90) or the mental component summary (mHealth+I: β = −0.87 [95% CI, −4.42 to 2.69]; P = .63; mHealth: β = 1.73 [95% CI, −1.89 to 5.34]; P = .35) QOL scores. Only secondary outcomes, including self-efficacy (β = −2.31 [95% CI, −4.26 to −0.36]; P = .02), systolic blood pressure (β = −2.30 [95% CI, −5.00 to −0.13]; P = .04), pain levels (β = 1.18 [95% CI, 0.52 to 2.00]; P = .02), and health services utilization (β = 0.98 [95% CI, 0.32 to 2.09]; P = .048) improved in the mHealth+I group compared with the control group.Conclusions and Relevance: This randomized clinical trial found no difference in the primary outcome between the mHealth+I group and the control group confirming that there were no incremental benefits to adding interactivity in mHealth programs for older adults with chronic diseases.Trial Registration: Clinicaltrials.gov Identifier: NCT03878212

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