| Study location | Study type | Cases with DNA |
|---|---|---|
| Spanish Bladder Cancer Study (html, pdf) | Hospital-based | 1,150 |
| New England Bladder Cancer Study (html, pdf) | Population-based | 1,134 |
| Nijmegen Bladder Cancer Study (html, pdf) | Population-based | 1,393 |
| MD Anderson Bladder Cancer Study (html, pdf) | Hospital-based | 755 |
| Los Angeles-Shanghai Bladder Cancer Study (html, pdf) | Population-based | 1,268 |
| New Hampshire Bladder Cancer Study (html, pdf) | Population-based | 667 |
| Leeds Bladder Cancer Study (html, pdf) | Hospital-based | 547 |
| Torino Bladder Cancer (html, pdf) | Hospital-based | 422 |
| Stockholm, Sweden | 327 | |
| Seoul, Korea | Hospital-based | 241 |
| Aarhus, Denmark | 237 | |
| UCLA Molecular Epidemiology of Bladder Cancer (html, pdf) | Hospital-based | 229 |
| North Carolina, USA | Hospital-based | 228 |
| Akita and Kyoto, Japan | Hospital-based | 222 |
| Lutherstadt Wittenberg Bladder Cancer Study (html, pdf) | Hospital-based | 216 |
| Eastern European Bladder Cancer Study (html, pdf) | Hospital based | 214 |
| Brescia Bladder Cancer Case-control Study (html, pdf) | Hospital-based | 200 |
| Belgian Case-control Study on Bladder Cancer (html, pdf) | Population-based | 200 |
| Oxford, UK | 196 | |
| French Bladder Cancer Study (FBCS) (html, pdf) | Hospital-based | 195 |
| Ankara, Turkey | Hospital based | 121 |
| The South and East China case control study on Bladder Cancer. SEarCh (html, pdf) | Hospital based | 225/year |
| TOTAL | 10,162 |
