Table S2. Risk bias assessment for observational studies.
| Study ID | Study design | Selection | Outcome | |||||
|---|---|---|---|---|---|---|---|---|
| Representativeness of exposed cohort | Comparability | Ascertainment of exposure | Demonstration that outcome of interest was Not present at start of study | Assessment of outcome | Enough follow-up length | |||
| Catanzariti (6) | Prospective | Truly representative | Multi-center | Secured records/office visits | Yes | Independent assessment | Yes | |
| Maines (7) | Case-control | Truly representative | Single center | Secured records | Yes | Independent assessment | Yes | |
| Jermyn (20) | Case-series | Truly representative | Single center | Secured records/phone calls | Yes | Independent assessment | Yes | |