|
1
|
Pocovi NC, Graham PL, Lin CWC, French SD, Latimer J, Merom D, Tiedemann A, Maher CG, van Dongen JM, Clavisi O, Hancock MJ. Effectiveness and cost-effectiveness of a progressive, individualised walking and education program for prevention of low back pain recurrence in adults: statistical analysis plan for the WalkBack randomised controlled trial. Trials 2023; 24:197. [PMID: 36927497 PMCID: PMC10019396 DOI: 10.1186/s13063-023-07119-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 01/24/2023] [Indexed: 03/18/2023] Open
Abstract
BACKGROUND Exercise for the prevention of low back pain recurrences is recommended, but under-researched. The effectiveness and cost-effectiveness of a walking program for preventing low back pain recurrence remains unknown. This a priori statistical analysis plan describes the methods of analysis for the WalkBack trial. METHODS WalkBack is a prospectively registered, pragmatic, randomised controlled trial. The aim is to investigate the effectiveness and cost-effectiveness of a 6-month progressive and individualised walking and education program (intervention) for the prevention of low back pain recurrences, compared to a no-treatment control group. The primary outcome is days to the first recurrence of an episode of activity-limiting low back pain. Key secondary outcomes include days to any recurrence of low back pain, days to a care-seeking recurrence of low back pain, disability level, health-related quality of life, costs associated with low back pain and adverse events. All participants will be followed for a minimum of 12 months. Analysis will follow the intention-to-treat principle. Cox regression is planned to assess the effects for the outcomes of time to activity-limiting, minimal and care-seeking recurrence. Hazard ratios and median survival times with 95% confidence intervals will be calculated. The effect of the intervention on continuous outcomes will be estimated with repeated-measure linear mixed models. An economic evaluation will be performed from the societal perspective for recurrence prevented (yes/no) and quality-adjusted life years. The proportion of adverse events between groups will be compared using Fisher's exact test. DISCUSSION The WalkBack trial will provide evidence on the effectiveness and cost-effectiveness of a walking intervention to prevent low back pain recurrences. This statistical analysis plan provides transparency on the analysis of the trial. TRIAL REGISTRATION WalkBack - Effectiveness and cost-effectiveness of a progressive individualised walking and education program for the prevention of a recurrence of low back pain. ACTRN12619001134112 . Date Registered: 14/08/2019.
Collapse
Affiliation(s)
- Natasha C Pocovi
- Department of Health Sciences, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia.
| | - Petra L Graham
- School of Mathematical and Physical Sciences, Macquarie University, Sydney, Australia
| | | | - Simon D French
- Department of Chiropractic, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia
| | - Jane Latimer
- The University of Sydney, Sydney Musculoskeletal Health, Gadigal Country, Sydney, Australia
| | - Dafna Merom
- School of Health Sciences, Western Sydney University, Sydney, Australia
| | - Anne Tiedemann
- The University of Sydney, Sydney Musculoskeletal Health, Gadigal Country, Sydney, Australia
| | - Christopher G Maher
- The University of Sydney, Sydney Musculoskeletal Health, Gadigal Country, Sydney, Australia
| | - Johanna M van Dongen
- Department of Health Sciences, Vrije University of Amsterdam, Amsterdam, Netherlands
| | | | - Mark J Hancock
- Department of Health Sciences, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia
| |
Collapse
|