Table 1.
Environmental, behavioral and lifestyle risk factors for rheumatoid arthritis, inflammatory arthritis, or autoimmunity in prospective cohort studies
| Site | Population | Cohort | Smoking | Silica | Air pollution |
Reproductive factors |
Birth Weight |
Alcohol | Diet | Periodontal Disease |
|---|---|---|---|---|---|---|---|---|---|---|
| Boston | Nurses | NHS | X | X | X | X | X | X | X* | |
| Iowa Women’s Health Study |
Women | IWHS | X | X | X | |||||
| Sweden | General | Malmo Diet and Cancer Study |
X | X | X | |||||
| Netherlands | General | Lifelines | X | X | X | X | X | X | X** | |
| United Kingdom | General | NOAR | X | X | X | |||||
| Colorado | FDR | SERA | X | X | X | X | X | X* | ||
| Manitoba | FDR | NAN | X | X | X | X | X** | |||
| Geneva | FDR | Geneva | X | X | X | X | X | X* | ||
X – Exposure ascertained by survey
*
Subjects complete survey regarding periodontitis symptoms
**
Subjects undergo dental examination for periodontitis