Table 1.
The clinical characteristics of patients
| Severance cohort | SEER cohort | |
|---|---|---|
| Patients | (n = 398) | (n = 10 621) |
| Mortality events | 259 | 9444 |
| Mean exposure | ||
| PM10 (µg/m3) | 48.5 ± 14.7 | 25.6 ± 11.1 |
| CO (ppm) | 0.5 ± 0.1 | 0.5 ± 0.3 |
| Age | 56.7 ± 13.5 | 64.0 ± 13.9 |
| Sex | ||
| Male | 242 (60.8%) | 6 255 (58.9%) |
| Female | 156 (39.2%) | 4 366 (41.1%) |
| Race | ||
| Asian | 398 (100%) | 838 (7.9%) |
| White | 0 (0%) | 7 390 (69.6%) |
| Hispanic | 0 (0%) | 1 789 (16.8%) |
| Black | 0 (0%) | 571 (5.3%) |
| Others | 0 (0%) | 33 (0.3%) |
| Surgery | ||
| Yes | 398 (100%) | 7 632 (71.9%) |
| No | 0 (0%) | 2 989 (28.1%) |
| Chemotherapy | ||
| Yes | 325 (81.6%) | 5 655 (53.2%) |
| No | 73 (18.3%) | 4 966 (46.7%) |
| Radiation mode | ||
| Adjuvant radiation | 335 (84.2%) | 5 592 (52.6%) |
| No | 63 (15.8%) | 5 029 (47.4%) |
| Radiation | ||
| Beam radiation | 361 (90.7%) | 6 970 (65.6%) |
| No | 37 (9.3%) | 3 651 (34.4%) |
Data are n (%) and mean with standard deviation. Diagnosis of all patients is made as glioblastoma.
PM10: Particulate matter with an aerodynamic diameter less than 10 µm, CO: Carbon monoxide, ppm: Parts per million.