Cases (n=2669) | Controls (n=1718) | |
Men | 1486 (55.7) | 890 (52) |
Women | 1183 (44.3) | 828 (48) |
Mean age (y) | 56.1 | 54.9 |
Duration of interview (min) | 62.1 | 63.2 |
Duration of interview divided by number of jobs held | 30 | 30 |
Incomplete interviews | 129 (5) | 51 (3) |
Years of school | ||
<6 | 1231 (46) | 749 (44) |
6–8 | 588 (22) | 401 (23) |
9–13 | 552 (21) | 359 (21) |
14+ | 265 (10) | 194 (11) |
missing | 33 (1) | 15 (1) |
Face to face interviews | 2567 (96) | 1628 (95) |
Telephone | 102 (4) | 90 (5) |
Home interviews | 1702 (64) | 1343 (78) |
Hospital interviews | 642 (24) | 29 (0.2) |
Other (epidemiology unit) | 325 (12) | 346 (21) |
Data shown in parentheses are percentages.