The Revised upper limb module (RULM) has been increasingly used in clinical trials and in clinical settings. The aim of this study was to use the ‘shift analysis’ to assess the patterns of lost or gained abilities for each item on the RULM in an untreated cohort, stratified by SMA type, age, SMN2 copy number, and motor functional status. The analysis was performed on 222 12-month paired assessments from 129 individuals (115 assessment from type II and 107 from type III) who had at least two assessments at yearly intervals. There was a loss of one or more activities in 54% in type II and in 29% type III. A gain of one or more activities was found in 42% type II and in 22% type III. There were concomitant gains and losses in 27% in SMA II and in 9% in SMA III. Our results, measuring the number of abilities that are lost or gained, provide an additional method of detecting changes that can be used for the interpretation of the longitudinal data collected in treated SMA individuals.
Coratti, G., Civitello, M., Rohwer, A., Albamonte, E., Montes, J., Glanzman, A. M., Pasternak, A., De Sanctis, R., Young, S. D., Duong, T., Mizzoni, I., Milev, E., Sframeli, M., Morando, S., D'Amico, A., Catteruccia, M., Brolatti, N., Pane, M., Scoto, M., Messina, S., Hirano, M., Zolkipli-Cunningham, Z., Darras, B. T., Bertini, E., Bruno, C., Sansone, V. A., Salmin, F., Day, J., Baranello, G., Pera, M. C., Muntoni, F., Finkel, R. S., Mercuri, E. M., Upper limb function changes over 12 months in untreated SMA II and III individuals: an item-level analysis using the Revised Upper Limb Module, <<NEUROMUSCULAR DISORDERS>>, 2024; (N/A): N/A-N/A. [doi:10.1016/j.nmd.2024.08.006] [https://hdl.handle.net/10807/296196]
Upper limb function changes over 12 months in untreated SMA II and III individuals: an item-level analysis using the Revised Upper Limb Module
Coratti, Giorgia;De Sanctis, Roberto;Pane, Marika;Pera, Maria Carmela;Mercuri, Eugenio Maria
2024
Abstract
The Revised upper limb module (RULM) has been increasingly used in clinical trials and in clinical settings. The aim of this study was to use the ‘shift analysis’ to assess the patterns of lost or gained abilities for each item on the RULM in an untreated cohort, stratified by SMA type, age, SMN2 copy number, and motor functional status. The analysis was performed on 222 12-month paired assessments from 129 individuals (115 assessment from type II and 107 from type III) who had at least two assessments at yearly intervals. There was a loss of one or more activities in 54% in type II and in 29% type III. A gain of one or more activities was found in 42% type II and in 22% type III. There were concomitant gains and losses in 27% in SMA II and in 9% in SMA III. Our results, measuring the number of abilities that are lost or gained, provide an additional method of detecting changes that can be used for the interpretation of the longitudinal data collected in treated SMA individuals.
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