Table 1.
Comparison of mailing list size and number of senders in sample
| Mailing List | Number of Members at Start-Up | Number of Senders in Sample (%) |
| L-T survivors | 277 | 63 (23) |
| Lung NSCLC | 310 | 63 (20) |
| LM sarcoma | 587 | 95 (16) |
| Colon | 670 | 115 (17) |
| Kidney | 846 | 137 (16) |
| Esophageal | 1160 | 127 (11) |
| Myeloma | 1191 | 118 (10) |
| Ovarian | 1503 | 164 (11) |
| Prostate | 1503 | 108 (7) |
| Chronic lymphocytic leukemia (CLL) | 2106 | 135 (6) |