To the Editor: In their observational study, Kimmel and colleagues1 examined the impact of inpatient rehabilitation (IPR) for isolated lower limb injuries on functional outcomes in working‐aged people using inverse probability of treatment weighting (IPTW) propensity score analysis. It concerns us that the study lacks real clinical perspectives in disability management.
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- 1. Kimmel LA, Simpson PM, Holland AE, et al. Discharge destination and patient‐reported outcomes after inpatient treatment for isolated lower limb fractures. Med J Aust 2020; 212: 263–270. https://www.mja.com.au/journal/2020/212/6/discharge-destination-and-patient-reported-outcomes-after-inpatient-treatment
- 2. Ali MS, Groenwold RHH, Belitser SV, et al. Reporting of covariate selection and balance assessment in propensity score analysis is suboptimal: a systematic review. J Clin Epidemiol 2015; 68: 122–131.
- 3. Austin PC, Stuart EA. Moving towards best practice when using inverse probability of treatment weighting (IPTW) using the propensity score to estimate causal treatment effects in observational studies. Stat Med 2015; 34: 3661–3679.
- 4. Beck B, Devlin A, Hart M, Gabbe B. Victorian Orthopaedic Trauma Outcomes Registry (VOTOR) annual report. Melbourne: Monash University, 2018. https://www.monash.edu/__data/assets/pdf_file/0003/1410096/VOTOR-Annual-Report-16-17.pdf (viewed Mar 2021).
- 5. Morgounovski J, Vuistiner P, Léger B, Luthi F. The fear–avoidance model to predict return to work after an orthopedic trauma. Ann Phys Rehabil Med 2016; 59: e110–e111.
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