Table 1.
Study population and characteristics [n (%)].
| Characteristic | Cases | Controls | Total (n) | |||
|---|---|---|---|---|---|---|
| Country/county | ||||||
| Hungary, total | 160 (30.3) | 249 (46.1) | 409 | |||
| Bács-Kiskun | 90 (17.1) | 101 (18.7) | 191 | |||
| Békés | 23 (4.4) | 23 (4.3) | 46 | |||
| Csongrád | 24 (4.5) | 61 (11.3) | 85 | |||
| Jász-Nagykun-Szolnok | 23 (4.4) | 64 (11.9) | 87 | |||
| Romania, total | 158 (29.9) | 156 (28.9) | 314 | |||
| Arad | 90 (17.0) | 100 (18.5) | 190 | |||
| Bihor | 68 (12.9) | 56 (10.4) | 124 | |||
| Slovakia, total | 211 (39.9) | 135 (25.0) | 346 | |||
| Banska Bystrica | 92 (17.4) | 70 (13.0) | 162 | |||
| Nitra | 119 (22.5) | 65 (12.0) | 184 | |||
| Age (years) | ||||||
| < 45 | 20 (3.9) | 55 (10.3) | 75 | |||
| 45–49 | 33 (6.4) | 47 (8.8) | 80 | |||
| 50–54 | 31 (6.0) | 61 (11.4) | 92 | |||
| 55–59 | 63 (12.1) | 77 (14.5) | 140 | |||
| 60–64 | 65 (12.5) | 76 (14.3) | 141 | |||
| 65–69 | 106 (20.4) | 83 (15.6) | 189 | |||
| 70–74 | 113 (21.7) | 78 (14.7) | 191 | |||
| 75–79 | 89 (17.1) | 56 (10.5) | 145 | |||
| Missing | 9 | 7 | 16 | |||
| Sex | ||||||
| Male | 237 (44.8) | 278 (51.5) | 515 | |||
| Female | 292 (55.2) | 262 (48.5) | 554 | |||
| Skin response to 1-hr midday sun | ||||||
| Blistered | 71 (13.7) | 59 (11.1) | 130 | |||
| Sunburned | 114 (22.0) | 83 (15.6) | 197 | |||
| Mild burn | 169 (32.6) | 161 (30.3) | 330 | |||
| Tan | 157 (30.3) | 206 (38.8) | 363 | |||
| No change | 7 (1.4) | 22 (4.1) | 29 | |||
| Missing | 11 | 9 | 20 | |||
| Skin complexion | ||||||
| Light | 271 (51.3) | 222 (41.2) | 493 | |||
| Medium | 241 (45.6) | 258 (47.9) | 499 | |||
| Dark | 16 (3.0) | 59 (11.0) | 75 | |||
| Missing | 1 | 1 | 2 | |||
| Total | 529 (100.0) | 540 (100.0) | 1,069 | |||
| Years of education (mean ± SD) | 10.1 ± 4.1 | 10.2 ± 3.7 | 10.1 ± 3.9 |