Table 1.
The Characteristics of Glioma Cases and Cancer-Free Controls
| Characteristics | Group | Cases (n = 605) | Controls (n = 1,300) | p Valuea |
|---|---|---|---|---|
| Age (mean ± SD) | 40.71 ± 18.28 | 41.68 ± 13.54 | 0.20 | |
| Age (years) | 0.69 | |||
| <40 | 267 (44.13%) | 561 (43.15%) | ||
| ≥40 | 338 (55.87%) | 739 (56.85%) | ||
| Sex | 0.53 | |||
| male | 335 (55.37%) | 700 (53.85%) | ||
| female | 270 (44.63%) | 600 (46.15%) | ||
| WHO Grade | ||||
| I–II | 382 (63.14%) | |||
| III–IV | 223 (36.86%) | |||
| Surgery | ||||
| STR and NTR | 189 (31.24%) | |||
| GTR | 416 (68.76%) | |||
| Radiotherapy | ||||
| none | 60 (9.92%) | |||
| conformal radiotherapy | 162 (26.78%) | |||
| gamma knife | 383 (63.31%) | |||
| Chemotherapy | ||||
| none | 355 (58.68%) | |||
| platinum | 124 (20.50%) | |||
| temozolomide | 52 (8.60%) | |||
| nimustine | 74 (12.23%) | |||
SD, standard deviation; STR, subtotal resection; NTR, near-total resection; GTR, gross total resection; WHO, World Health Organization.
a
t test or two-sided χ2-test.