Main characteristics of subjects: 437 cases (362 men; 75 women) and 874 controls (724 men; 150 women), French case-control study, 1998–2002
| Men (1 086) | Women (225) | |||||||
|---|---|---|---|---|---|---|---|---|
| Cases (362) | Controls (724) | Cases (75) | Controls (150) | |||||
| n | % | n | % | n | % | n | % | |
| Age (years) | ||||||||
| Mean (SD) | 67.6 (9.3) | 66.8 (9.1) | 66.6 (9.1) | 65.8 (8.9) | ||||
| Range | 41–93 | 41–89 | 41–92 | 41–89 | ||||
| Education level (years) | ||||||||
| ≤14 | 185 | 51.1 | 275 | 38.0 | 33 | 44.0 | 60 | 40.0 |
| >14 | 177 | 48.9 | 449 | 62.0 | 42 | 56.0 | 90 | 60.0 |
| Diagnostic-ascertainment period (months) | ||||||||
| Mean (SD) | 12.7 (18.8) | 12.1 (15.2) | ||||||
| Range | 0–97.1 | 0.2–65.9 | ||||||
| Diagnostic-interview period (months) | ||||||||
| Mean (SD) | 3.4 (3.9) | 3.4 (4.4) | ||||||
| Range | 0–43.7 | 0–36.3 | ||||||
| Last held occupation (ISCO 1968 major group)* | ||||||||
| 0/1 Professional, technical and related workers | 49 | 13.5 | 146 | 20.2 | 5 | 6.9 | 31 | 21.5 |
| 2 Administrative and managerial workers | 15 | 4.1 | 68 | 9.4 | 3 | 4.1 | 1 | 0.7 |
| 3 Clerical and related workers | 34 | 9.4 | 91 | 12.6 | 30 | 41.1 | 41 | 28.5 |
| 4 Sales workers | 23 | 6.4 | 69 | 9.5 | 7 | 9.6 | 13 | 9.0 |
| 5 Service workers | 16 | 4.4 | 48 | 6.6 | 16 | 21.9 | 34 | 23.6 |
| 6 Agricultural, animal husbandry and forestry workers; fishermen; hunters | 10 | 2.8 | 69 | 9.5 | 3 | 4.1 | 4 | 2.8 |
| 7/8/9 Production and related workers, transport equipment operators and labourers | 215 | 59.4 | 233 | 32.2 | 9 | 12.3 | 20 | 13.9 |
*Among women, two cases and six controls had never worked.