Precision rehabilitation for aphasia by patient age, sex, aphasia severity, and time since stroke? A prespecified, systematic review based, individual participant data network subgroup meta-analysis

The RELEASE Collaborators, Marian C. Brady*, Myzoon Ali, Kathryn VandenBerg, Linda J. Williams, Louise R. Williams, Masahiro Abo, Frank Becker, Audrey Bowen, Caitlin Brandenburg, Caterina Breitenstein, Stefanie Bruehl, David A. Copland, Tamara B. Cranfill, Marie di Pietro-Bachmann, Pamela Enderby, Joanne Fillingham, Federica Lucia Galli, Marialuisa Gandolfi, Bertrand GlizeErin Godecke, Neil Hawkins, Katerina Hilari, Jacqueline Hinckley, Simon Horton, David Howard, Petra Jaecks, Elizabeth Jefferies, Luis M.T. Jesus, Maria Kambanaros, Eun Kyoung Kang, Eman M. Khedr, Anthony Pak-Hin Kong, Tarja Kukkonen, Marina Laganaro, Matthew A. Lambon Ralph, Ann Charlotte Laska, Béatrice Leemann, Alexander P. Leff, Roxele R. Lima, Antje Lorenz, Brian MacWhinney, Rebecca Shisler Marshall, Flavia Mattioli, İlknur Maviş, Marcus Meinzer, Reza Nilipour, Enrique Noé, Nam Jong Paik, Rebecca Palmer, Ilias Papathanasiou, Brigida Patricio, Isabel Pavão Martins, Cathy Price, Tatjana Prizl Jakovac, Elizabeth Rochon, Miranda L. Rose, Charlotte Rosso, Ilona Rubi-Fessen, Marina B. Ruiter, Claerwen Snell, Benjamin Stahl, Jerzy P. Szaflarski, Shirley A. Thomas, Mieke van de Sandt-Koenderman, Ineke van der Meulen, Evy Visch-Brink, Linda Worrall, Heather Harris Wright

*Corresponding author for this work

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Abstract

Background: Stroke rehabilitation interventions are routinely personalized to address individuals’ needs, goals, and challenges based on evidence from aggregated randomized controlled trials (RCT) data and meta-syntheses. Individual participant data (IPD) meta-analyses may better inform the development of precision rehabilitation approaches, quantifying treatment responses while adjusting for confounders and reducing ecological bias. Aim: We explored associations between speech and language therapy (SLT) interventions frequency (days/week), intensity (h/week), and dosage (total SLT-hours) and language outcomes for different age, sex, aphasia severity, and chronicity subgroups by undertaking prespecified subgroup network meta-analyses of the RELEASE database. Methods: MEDLINE, EMBASE, and trial registrations were systematically searched (inception-Sept2015) for RCTs, including ⩾ 10 IPD on stroke-related aphasia. We extracted demographic, stroke, aphasia, SLT, and risk of bias data. Overall-language ability, auditory comprehension, and functional communication outcomes were standardized. A one-stage, random effects, network meta-analysis approach filtered IPD into a single optimal model, examining SLT regimen and language recovery from baseline to first post-intervention follow-up, adjusting for covariates identified a-priori. Data were dichotomized by age (⩽/> 65 years), aphasia severity (mild–moderate/ moderate–severe based on language outcomes’ median value), chronicity (⩽/> 3 months), and sex subgroups. We reported estimates of means and 95% confidence intervals. Where relative variance was high (> 50%), results were reported for completeness. Results: 959 IPD (25 RCTs) were analyzed. For working-age participants, greatest language gains from baseline occurred alongside moderate to high-intensity SLT (functional communication 3-to-4 h/week; overall-language and comprehension > 9 h/week); older participants’ greatest gains occurred alongside low-intensity SLT (⩽ 2 h/week) except for auditory comprehension (> 9 h/week). For both age-groups, SLT-frequency and dosage associated with best language gains were similar. Participants ⩽ 3 months post-onset demonstrated greatest overall-language gains for SLT at low intensity/moderate dosage (⩽ 2 SLT-h/week; 20-to-50 h); for those > 3 months, post-stroke greatest gains were associated with moderate-intensity/high-dosage SLT (3–4 SLT-h/week; ⩾ 50 hours). For moderate–severe participants, 4 SLT-days/week conferred the greatest language gains across outcomes, with auditory comprehension gains only observed for ⩾ 4 SLT-days/week; mild–moderate participants’ greatest functional communication gains were associated with similar frequency (⩾ 4 SLT-days/week) and greatest overall-language gains with higher frequency SLT (⩾ 6 days/weekly). Males’ greatest gains were associated with SLT of moderate (functional communication; 3-to-4 h/weekly) or high intensity (overall-language and auditory comprehension; (> 9 h/weekly) compared to females for whom the greatest gains were associated with lower-intensity SLT (< 2 SLT-h/weekly). Consistencies across subgroups were also evident; greatest overall-language gains were associated with 20-to-50 SLT-h in total; auditory comprehension gains were generally observed when SLT > 9 h over ⩾ 4 days/week. Conclusions: We observed a treatment response in most subgroups’ overall-language, auditory comprehension, and functional communication language gains. For some, the maximum treatment response varied in association with different SLT-frequency, intensity, and dosage. Where differences were observed, working-aged, chronic, mild–moderate, and male subgroups experienced their greatest language gains alongside high-frequency/intensity SLT. In contrast, older, moderate–severely impaired, and female subgroups within 3 months of aphasia onset made their greatest gains for lower-intensity SLT. The acceptability, clinical, and cost effectiveness of precision aphasia rehabilitation approaches based on age, sex, aphasia severity, and chronicity should be evaluated in future clinical RCTs.

Original languageEnglish
JournalInternational Journal of Stroke
Early online date14 Apr 2022
DOIs
Publication statusE-pub ahead of print - 14 Apr 2022

Keywords

  • aphasia
  • individual participant data
  • network meta-analysis
  • rehabilitation
  • speech and language therapy
  • Stroke

ASJC Scopus subject areas

  • Psychology(all)
  • Medicine(all)
  • Health Professions(all)
  • Neuroscience(all)
  • Neurology

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  • Dosage, intensity, and frequency of language therapy for aphasia: a systematic review–based, individual participant data network meta-analysis

    Brady, M. C., Ali, M., VandenBerg, K., Williams, L. J., Williams, L. R., Abo, M., Becker, F., Bowen, A., Brandenburg, C., Breitenstein, C., Bruehl, S., Copland, D. A., Cranfill, T. B., di Pietro-Bachmann, M., Enderby, P., Fillingham, J., Galli, F. L., Gandolfi, M., Glize, B., Godecke, E., & 49 othersHawkins, N., Hilari, K., Hinckley, J., Horton, S., Howard, D., Jaecks, P., Jefferies, E., Jesus, L. M. T., Kambanaros, M., Kyoung Kang, E., Khedr, E. M., Pak-Hin Kong, A., Kukkonen, T., Laganaro, M., Lambon Ralph, M. A., Laska, A. C., Leemann, B., Leff, A. P., Lima, R. R., Lorenz, A., MacWhinney, B., Shisler Marshall, R., Mattioli, F., Maviş, İ., Meinzer, M., Nilipour, R., Noé, E., Paik, N-J., Palmer, R., Papathanasiou, I., Patricio, B., Pavão Martins, I., Price, C., Prizl Jakovac, T., Rochon, E., Rose, M. L., Rosso, C., Rubi-Fessen, I., Ruiter, M. B., Snell, C., Stahl, B., Szaflarski, J. P., Thomas, S. A., van de Sandt-Koenderman, M., van der Meulen, I., Visch-Brink, E., Worrall, L., Harris Wright, H. & The RELEASE Collaborators, Mar 2022, In: Stroke. 53, 3, p. 956-967 12 p.

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  • Utilising a systematic review-based approach to create a database of individual participant data for meta- and network meta-analyses: the RELEASE database of aphasia after stroke

    Williams, L. R., Ali, M., VandenBerg, K., Williams, L. J., Abo, M., Becker, F., Bowen, A., Brandenburg, C., Breitenstein, C., Bruehl, S., Copland, D. A., Cranfill, T. B., Di Pietro-Bachmann, M., Enderby, P., Fillingham, J., Galli, F. L., Gandolfi, M., Glize, B., Godecke, E., Hawkins, N., & 49 othersHilari, K., Hinckley, J., Horton, S., Howard, D., Jaecks, P., Jefferies, E., Jesus, L. M. T., Kambanaros, M., Kyoung Kang, E., Khedr, E. M., Pak-Hin Kong, A., Kukkonen, T., Laganaro, M., Lambon Ralph, M. A., Laska, A. C., Leemann, B., Leff, A. P., Lima, R. R., Lorenz, A., MacWhinney, B., Shisler Marshall, R., Mattioli, F., Maviş, İ., Meinzer, M., Nilipour, R., Noé, E., Paik, N-J., Palmer, R., Papathanasiou, I., Patricio, B. F., Pavão Martins, I., Price, C., Prizl Jakovac, T., Rochon, E., Rose, M. L., Rosso, C., Rubi-Fessen, I., Ruiter, M. B., Snell, C., Stahl, B., Szaflarski, J. P., Thomas, S. A., van de Sandt-Koenderman, M., van der Meulen, I., Visch-Brink, E., Worrall, L., Harris Wright, H., Brady, M. C. & The REhabilitation and recovery of peopLE with Aphasia after StrokE (RELEASE) Collaborators, 3 Apr 2022, In: Aphasiology. 36, 4, p. 513-533 21 p.

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  • Predictors of poststroke aphasia recovery: a systematic review-informed individual participant data meta-analysis

    Ali, M., VandenBerg, K., Williams, L. J., Williams, L. R., Abo, M., Becker, F., Bowen, A., Brandenburg, C., Breitenstein, C., Bruehl, S., Copland, D. A., Cranfill, T. B., di Pietro-Bachmann, M., Enderby, P., Fillingham, J., Galli, F. L., Gandolfi, M., Glize, B., Godecke, E., Hawkins, N., & 47 othersHilari, K., Hinckley, J., Horton, S., Howard, D., Jaecks, P., Jefferies, E., Jesus, L. M. T., Kambanaros, M., Kyoung Kang, E., Khedr, E. M., Pak-Hin Kong, A., Kukkonen, T., Laganaro, M., Lambon Ralph, M. A., Laska, A. C., Leemann, B., Leff, A. P., Lima, R. R., Lorenz, A., MacWhinney, B., Shisler Marshall, R., Mattioli, F., Maviş, İ., Meinzer, M., Nilipour, R., Noé, E., Palmer, R., Papathanasiou, I., Patricio, B. F., Pavão Martins, I., Price, C., Prizl Jakovac, T., Rochon, E., Rose, M. L., Rosso, C., Rubi-Fessen, I., Ruiter, M. B., Snell, C., Szaflarski, J. P., Thomas, S. A., van de Sandt-Koenderman, M., van der Meulen, I., Visch-Brink, E., Worrall, L., Harris Wright, H., Brady, M. C. & The REhabilitation and recovery of peopLE with Aphasia after StrokE (RELEASE) Collaborators, May 2021, In: Stroke. 52, 5, p. 1778-1787 10 p.

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