Adjusted ORs and 95% CIs for the association between occupational socioeconomic measures and socioeconomic status and head and neck cancer
| Cases | Controls | Model 1* OR (95% CI) | Model 2† OR (95% CI) | Model 3‡ OR (95% CI) | Model 4§ OR (95% CI) | Model 5¶ OR (95% CI) | |
| SIOPS** | |||||||
| 1st quartile (49–78) | 636 | 1900 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| 2nd quartile (40–48) | 1318 | 1957 | 1.89 (1.68 to 2.12) | 1.59 (1.39 to 1.81) | 1.57 (1.38 to 1.80) | 1.55 (1.36 to 1.76) | 1.45 (1.23 to 1.71) |
| 3rd quartile (31–39) | 2082 | 1841 | 2.79 (2.49 to 3.13) | 2.00 (1.76 to 2.27) | 1.95 (1.72 to 2.22) | 1.82 (1.59 to 2.07) | 1.58 (1.30 to 1.92) |
| 4th quartile (14–30) | 1782 | 1628 | 2.77 (2.46 to 3.12) | 2.12 (1.86 to 2.42) | 2.08 (1.82 to 2.37) | 1.88 (1.64 to 2.17) | 1.59 (1.30 to 1.94) |
| ISEI** | |||||||
| 1st quartile (56–90) | 659 | 1801 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| 2nd quartile (40–55) | 1177 | 1872 | 1.64 (1.46 to 1.85) | 1.43 (1.25 to 1.63) | 1.42 (1.24 to 1.62) | 1.38 (1.21 to 1.58) | 1.01 (0.85 to 1.20) |
| 3rd quartile (32–39) | 2096 | 1875 | 2.49 (2.22 to 2.79) | 1.85 (1.63 to 2.10) | 1.80 (1.59 to 2.05) | 1.68 (1.47 to 1.91) | 1.05 (0.84 to 1.31) |
| 4th quartile (10–31) | 1886 | 1778 | 2.45 (2.19 to 2.76) | 1.98 (1.73 to 2.25) | 1.93 (1.69 to 2.20) | 1.74 (1.51 to 1.99) | 1.11 (0.88 to 1.40) |
| Ever manual job | |||||||
| No | 1427 | 3181 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Yes | 4391 | 4145 | 1.99 (1.83 to 2.15) | 1.64 (1.50 to 1.80) | 1.61 (1.47 to 1.76) | 1.49 (1.35 to 1.64) | 1.15 (0.99 to 1.34) |
| Ever unemployed†† | |||||||
| No | 3306 | 5427 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Yes | 444 | 428 | 1.85 (1.60 to 2.13) | 1.37 (1.16 to 1.61) | 1.26 (1.06 to 1.50) | 1.24 (1.04 to 1.47) | 1.19 (1.00 to 1.41) |
*Adjustment for sex, age and study centre.
†Variables of model 1 and further adjustment for cigarette smoking (status, duration, cigarettes/day, pack-years).
‡Variables of model 2 and further adjustment for alcohol consumption (status, drinks/day, interaction drinks/day×duration cigarette smoking).
§Variables of model 3 and further adjustment for worked ≥10 years in risk occupations (10 years before study).
¶Variables of model 4 and further adjustment for respective other SES/prestige variables (SIOPS, ISEI, manual/non-manual).
**Scores for longest job, categories based on quartiles of control distribution.
††No data available for Latin America and France (1989–1991).
ISEI, International Socio-Economic Index; SES, socioeconomic status; SIOPS, Standard International Occupational Prestige Scale.