Table 2.
Total number and proportions of central nervous system tumor cases in the Inpatient Register not found in the Swedish Cancer Register by diagnosis (main/secondary) and cranial surgery (yes/no) between 1990–2014
| Brain tumors
| ||||||||
|---|---|---|---|---|---|---|---|---|
| All combined | Malignant | Benign | Unknown behavior | |||||
|
| ||||||||
| Not reported, n (%) | Total | Not reported, n (%) | Total | Not reported, n (%) | Total | Not reported, n (%) | Total | |
|
| ||||||||
| Main diagnosis | 5,950 (20.8) | 28,619 | 2,717 (18.1) | 14,993 | 719 (32.5) | 2,211 | 2,534 (21.9) | 11,552 |
| Secondary diagnosis | 1,749 (29.2) | 5,993 | 478 (19.5) | 2,451 | 379 (44.3) | 856 | 900 (33.0) | 2,725 |
| Cranial surgery | 1,082 (7.1) | 15,435 | 244 (3.0) | 8,016 | 441 (24.6) | 1,796 | 401 (7.0) | 5,691 |
| No cranial surgery | 6,617 (34.5) | 19,177 | 2,951 (31.3) | 9,428 | 657 (51.7) | 1,271 | 3,033 (35.3) | 8,586 |
|
| ||||||||
| Other central nervous system tumors (excluding brain tumors) | ||||||||
|
| ||||||||
| Main diagnosis | 3,787 (22.3) | 16,998 | 204 (15.3) | 1,330 | 2,902 (21.9) | 13,284 | 685 (28.5) | 2,406 |
| Secondary diagnosis | 3,614 (51.0) | 7,088 | 131 (16.7) | 786 | 3,167 (56.8) | 5,574 | 317 (43.3) | 732 |
| Cranial surgery | 1,212 (12.4) | 9,788 | 9 (2.8) | 322 | 1,113 (12.7) | 8,750 | 90 (12.5) | 721 |
| No cranial surgery | 6,189 (43.3) | 14,298 | 326 (18.2) | 1,794 | 4,956 (49.0) | 10,108 | 912 (37.7) | 2,417 |