Table 3 Descriptive Statistics: Subjects with Occupational Information*
Variable | Classification | Case | Control | p-Value |
|---|---|---|---|---|
Gender | Females | 1073 (71.4) | 249 (62.9) | < 0.002 |
| Â | Males | 429 (28.6) | 147 (37.1) | Â |
Age-at-exam | 65–74 | 450 (30.0) | 184 (46.5) | < 0.001 |
|  | 75–84 | 801 (53.3) | 176 (44.4) |  |
| Â | 85+ | 251 (16.7) | 36 (9.1) | Â |
| Â | Mean (SD) | 78.2 (6.4) | 75.6 (6.6) | < 0.001 |
Age-at-onset | < 65 | 141 (9.7) | 52 (15.6) | < 0.005 |
|  | 65–74 | 665 (46.0) | 162 (48.5) |  |
|  | 75–84 | 569 (39.3) | 105 (31.4) |  |
| Â | 85+ | 71 (4.9) | 15 (4.5) | Â |
| Â | Missing | 56 | 62 | Â |
| Â | Mean (SD) | 73.4 (7.2) | 72.0 (7.3) | < 0.003 |
Ethnicity | White | 1163 (77.6) | 284 (71.7) | < 0.02 |
| Â | Hispanic | 168 (11.2) | 65 (16.4) | Â |
| Â | Other | 168 (11.2) | 47 (11.9) | Â |
| Â | Missing | 3 | 0 | Â |
Education | 0–5 | 102 (6.9) | 33 (8.5) | < 0.05 |
|  | 6–11 | 422 (28.7) | 87 (22.3) |  |
| Â | 12+ | 949 (64.4) | 270 (69.2) | Â |
| Â | Missing | 29 | 6 | Â |
Current income | < $10,000 | 448 (39.1) | 127 (41.8) | = 0.05 |
|  | $10,000 – $19,999 | 367 (33.0) | 73 (24.0) |  |
| Â | $20,000 + | 332 (28.9) | 104(34.1) | Â |
| Â | Missing | 355 | 92 | Â |
Hx of smoking | Yes | 547 (37.7) | 148 (38.7) | NS^: > 0.71 |
| Â | No | 903 (62.3) | 234 (61.3) | Â |
| Â | Missing | 52 | 14 | Â |
Hx of stroke | Yes | 103 (7.1) | 43 (11.4) | < 0.02 |
| Â | No | 1347 (92.9) | 335 (88.6) | Â |
| Â | Missing | 52 | 18 | Â |
MF exposure level | High | 32 (2.1) | 3 (0.8) | < 0.03 |
| Â | Medium | 81 (5.4) | 12 (3.0) | Â |
| Â | Low | 1389 (92.5) | 381 (96.2) | Â |
Female Only | Â | Â | Â | Â |
MF exposure level | High | 19 (1.8) | 1 (0.4) | < 0.03 |
| Â | Medium | 61 (5.7) | 6 (2.4) | Â |
| Â | Low | 993 (92.5) | 242 (97.2) | Â |
Male Only | Â | Â | Â | Â |
MF exposure level | High | 13 (3.0) | 2 (1.4) | NS: > 0.50 |
| Â | Medium | 20 (4.7) | 6 (4.1) | Â |
| Â | Low | 396 (92.3) | 139 (94.6) | Â |