Methodological Concerns Regarding the Interpretation of Modifiable Risk Factors for Low Back Pain [Letter]
Ying Shen, Rui Chen, Lijiang Lv · 2026
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Description
Ying Shen, Rui Chen, and Lijiang Lv raise three concerns about a study of risk factors for low back pain. That study combined burden data, a Chinese aging cohort, and a genetic method to weigh body weight, smoking, and job factors. They praise the multi-source approach but question how to read the results.
First, it assumes straight-line effects, so it cannot capture the U-shaped risk curve the cohort showed, where low and high weight link to more pain. The low-weight arm may reflect pain causing weight loss rather than the reverse. Second, the cohort analysis did not split the curve by sex or age, though burden differs across those groups. Third, the global estimates treat risk factors as acting alone, while they overlap and their shares may be double counted. The letter asks for finer checks before advice is drawn.
Catalog record
| CREATOR | Ying Shen, Rui Chen, Lijiang Lv |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 4 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |