Patient characteristics
| . | MM with prior malignancies . | MM without prior malignancies . |
|---|---|---|
| Patients, n (%) | 2469 (12.5) | 17 322 (87.5) |
| Age at MM diagnosis, median (range), y | 75 (34-98) | 71 (19-99) |
| Male sex, n (%) | 1220 (49.4) | 9 483 (54.5) |
| Year of MM diagnosis by category, n | ||
| 1973-1980 | 197 | 3 188 |
| 1981-1990 | 463 | 4 657 |
| 1991-2000 | 720 | 4 644 |
| 2001-2010 | 1089 | 4 833 |
| Year of MM diagnosis, median (range) | 1999 (1973-2010) | 1992 (1973-2010) |
| Follow-up, median (range), y | 2.0 (0.003-29.4) | 2.6 (0.003-40.9) |
| Time to subsequent malignancy, median (range), y | 2.3 (0.02-21.5) | 3.2 (0.003-37.5) |
| Prior malignancy type, no. of patients (%) | ||
| Hematologic | 163 (6.6) | — |
| Gastrointestinal | 323 (13.1) | — |
| Male reproductive | 427 (17.3) | — |
| Female reproductive | 401 (16.2) | — |
| Breast | 329 (13.3) | — |
| Kidney and urinary tract | 186 (7.5) | — |
| Melanoma | 125 (5.1) | — |
| Nonmelanoma skin cancer | 235 (9.5) | — |
| Respiratory | 43 (1.7) | — |
| Ear, nose, and throat | 46 (1.8) | — |
| Endocrine | 93 (3.8) | — |
| Nervous system | 61 (2.4) | — |
| Bone and cartilage | 6 (0.2) | — |
| Soft tissue and mediastinal | 17 (0.7) | — |
| Unspecified tumors | 14 (0.6) | — |
| Number of prior malignancy diagnoses | ||
| 1 | 2158 | — |
| ≥2 | 311 | — |
| Patients with subsequent malignancies, n (%) | 216 (8.8) | 1 257 (7.3) |
| . | MM with prior malignancies . | MM without prior malignancies . |
|---|---|---|
| Patients, n (%) | 2469 (12.5) | 17 322 (87.5) |
| Age at MM diagnosis, median (range), y | 75 (34-98) | 71 (19-99) |
| Male sex, n (%) | 1220 (49.4) | 9 483 (54.5) |
| Year of MM diagnosis by category, n | ||
| 1973-1980 | 197 | 3 188 |
| 1981-1990 | 463 | 4 657 |
| 1991-2000 | 720 | 4 644 |
| 2001-2010 | 1089 | 4 833 |
| Year of MM diagnosis, median (range) | 1999 (1973-2010) | 1992 (1973-2010) |
| Follow-up, median (range), y | 2.0 (0.003-29.4) | 2.6 (0.003-40.9) |
| Time to subsequent malignancy, median (range), y | 2.3 (0.02-21.5) | 3.2 (0.003-37.5) |
| Prior malignancy type, no. of patients (%) | ||
| Hematologic | 163 (6.6) | — |
| Gastrointestinal | 323 (13.1) | — |
| Male reproductive | 427 (17.3) | — |
| Female reproductive | 401 (16.2) | — |
| Breast | 329 (13.3) | — |
| Kidney and urinary tract | 186 (7.5) | — |
| Melanoma | 125 (5.1) | — |
| Nonmelanoma skin cancer | 235 (9.5) | — |
| Respiratory | 43 (1.7) | — |
| Ear, nose, and throat | 46 (1.8) | — |
| Endocrine | 93 (3.8) | — |
| Nervous system | 61 (2.4) | — |
| Bone and cartilage | 6 (0.2) | — |
| Soft tissue and mediastinal | 17 (0.7) | — |
| Unspecified tumors | 14 (0.6) | — |
| Number of prior malignancy diagnoses | ||
| 1 | 2158 | — |
| ≥2 | 311 | — |
| Patients with subsequent malignancies, n (%) | 216 (8.8) | 1 257 (7.3) |
—, Not applicable; n, number of patients.