1. Pedersen, A. B., Horváth-Puhó, E., Ehrenstein, V., Rørth, M. & Sørensen, H. T. Frozen shoulder and risk of cancer: a population-based cohort study. Br. J. Cancer 117, 144–147 (2017).
2. function2fitnes. Massive population-based study. First nationwide cohort study to examine cancer risk in frozen shoulder patients from British Journal of Cancer. What is the risk of a cancer diagnosis after an incident diagnosis of frozen shoulder? Open Access’ https://t.co/xEh2yy2irN; https://t.co/YZ3soly2GE. Available from https://twitter.com/function2fitnes/status/1214321809178464256 (2020).
3. giovanni_ef. There is no way in the world this study can even start answering this question. There is absolutely no information on how confounding was handled—which wasn’t even mentioned as a study limitation. This is pure epidemiological rubbish. Available from https://twitter.com/giovanni_ef/status/1214332942417158144 (2020).
4. LiniearProbe. The risk of this study is clinicians & patients worrying that FS might be a forerunner of cancer when: A) this cannot be supported by this study B) may lead to unnecessary further Ix & referrals Treat FS as FS and use the same clinical skills to be alert to red flags as always. Available from https://twitter.com/LinearProbe/status/1214527944439283712 (2020).
5. Suzuki, E., Shinozaki, T. & Yamamoto, E. Causal diagrams: pitfalls and tips. J. Epidemiol. 30, 153–162 (2020).