TABLE I.
STUDY POPULATION CHARACTERISTICS BY GLIOMA STATUS
| Glioma Cases (n=489) | Controls (n=540) | p-value | ||
|---|---|---|---|---|
| n(%) | n(%) | |||
| Sex | 0.06 | |||
| Male | 270 (55.2) | 266 (49.3) | ||
| Female | 219 (44.8) | 274 (50.7) | ||
| Family History of Cancer | 0.87 | |||
| Yes | 265 (56.6) | 296 (30.0) | ||
| No | 203 (43.4) | 222 (42.9) | ||
| Radiation Exposure | 0.004 | |||
| Yes | 22 (4.6) | 8 (1.5) | ||
| No | 462 (95.5) | 522 (98.5) | ||
| Season of Birth | 0.83 | |||
| Spring | 115 (23.6) | 134 (25.1) | ||
| Summer | 143 (29.3) | 145 (27.2) | ||
| Autumn | 125 (25.6) | 133 (25.0) | ||
| Winter | 105 (21.5) | 121 (22.7) | ||
| Age | 0.37 | |||
| <50 years | 251 (51.3) | 262 (48.5) | ||
| ≥50 years | 238 (48.7) | 278 (51.5) | ||
| Highest Level of Education | 0.0001 | |||
| High School or Less | 111 (22.9) | 74 (13.7) | ||
| Some College or Beyond | 374 (77.1) | 466 (86.3) | ||
| History of Smoking | 0.14 | |||
| Yes | 202 (41.3) | 248 (45.9) | ||
| No | 287 (58.7) | 292 (54.1) | ||