Table 4 Odds ratios and 95% confidence limits for significant associations of occupational groups with specific lymphoma subentities.
| ISCO‐68 | Occupational group | 1–10 years | >10 years | All | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Cases | Controls | Adj OR† | 95% CI | Cases | Controls | Adj OR† | 95% CI | Adj OR† | 95% CI | ||
| Hodgkin's lymphoma (n = 116) | |||||||||||
| 90 | Rubber and plastics product makers | 5 | 9 | 4.6† | 1.2–17.0 | – | 2 | – | – | 3.9† | 1.1–14.0 |
| B cell non‐Hodgkin's lymphoma (total) (n = 554) | |||||||||||
| Diffuse large B cell lymphoma (n = 158) | |||||||||||
| 02–03 | Architects, engineers, and related technicians | 6 | 16 | 3.3† | 1.1–9.4 | 6 | 32 | 1.1 | 0.4–3.0 | 1.7 | 0.8–3.7 |
| 53 | Cooks waiters bartenders | 3 | 13 | 1.5 | 0.4–5.5 | 6 | 13 | 3.1† | 1.1–8.9 | 2.3 | 1.0–5.3 |
| 54 | Maids | 24 | 61 | †2.2 | 1.1–4.2 | 5 | 8 | 3.4† | 1.0–11.7 | 2.3‡ | 1.2–4.3 |
| 72 | Metal processors | 3 | 5 | 4.1 | 0.9–19.7 | 3 | 1 | – | – | 7.3‡ | 2.1–26.0 |
| 85 | Electrical fitters and related electrical and electronics workers | 4 | 31 | 0.6 | 1.2–2.1 | 5 | 10 | 3.2† | 1.0–10.5 | 1.2 | 0.5–2.9 |
| Follicular lymphoma (n = 92) | |||||||||||
| 02–03 | Architects, engineers, and related technicians | 2 | 16 | 3.1 | 0.6–15.6 | 6 | 32 | 3.0 | 1.0–9.2 | 3.0† | 1.1–8.2 |
| 06–07 | Medical, dental, veterinary, and related workers | 7 | 27 | 2.5 | 0.9–6.7 | 6 | 18 | 4.0† | 1.4–11.7 | 3.1‡ | 1.4–6.8 |
| 41–45 | Sales workers | 12 | 55 | 3.2‡ | 1.3–7.7 | 11 | 70 | 2.5† | 1.0–6.0 | 2.8‡ | 1.3–5.9 |
| 74 | Chemical processors and related workers | 3 | 11 | 3.0 | 0.7–12.8 | 2 | 3 | 10.8† | 1.6–73.4 | 4.3† | 1.3–14.7 |
| 77 | Food and beverage processors | 3 | 14 | 2.8 | 0.7–10.9 | 3 | 5 | 6.4† | 1.3–31.2 | 3.8† | 1.3–11.1 |
| 84 | Machinery fitters, machine assemblers, and precision instrument makers (except electrical) | 6 | 49 | 2.3 | 0.8–6.5 | 9 | 32 | 5.3‡ | 2.0–14.1 | 3.4‡ | 1.5–7.8 |
| 85 | Electrical fitters and related electrical and electronics workers | 5 | 31 | 2.1 | 0.7–6.4 | 5 | 10 | 9.3‡ | 2.7–32.4 | 3.5‡ | 1.5–8.4 |
| 92 | Printers | 2 | 11 | 2.2 | 0.4–11.3 | 3 | 6 | 6.3† | 1.3–29.8 | 3.6† | 1.2–11.4 |
| Chronic lymphocytic leukaemia (CLL)/small lymphocytic lymphoma (SLL) (n = 104) | |||||||||||
| 54 | Maids | 12 | 61 | 2.5† | 1.1–5.9 | 1 | 8 | 1.6 | 0.2–14.6 | 2.4† | 1.0–5.6 |
| 58 | Protective service workers | 3 | 7 | 3.3 | 0.7–14.5 | 2 | 6 | 3.7 | 0.6–21.2 | 3.4† | 1.0–11.3 |
| 77 | Food and beverage processors | 2 | 14 | 1.1 | 0.2–5.3 | 5 | 5 | 8.4‡ | 2.1–32.8 | 2.9† | 1.1–8.0 |
| 95 | Bricklayers, carpenters and other construction workers | 6 | 30 | 1.3 | 0.5–3.7 | 6 | 10 | 4.3† | 1.3–13.7 | 2.0 | 0.9–4.7 |
| 97 | Material handling and related equipment operators, dockers and freight handlers | 5 | 20 | 1.9 | 0.6–5.8 | 3 | 6 | 5.2† | 1.1–23.3 | 2.5 | 1.0–6.5 |
| Plasma cell myeloma (plasmacytoma) (n = 76) | |||||||||||
| 31; 35–38 | Other clerical workers | 3 | 15 | 3.5 | 0.9–14.6 | 4 | 27 | 2.5 | 0.7–8.9 | 2.9† | 1.0–8.2 |
| 54 | Maids | 8 | 61 | 2.4 | 0.9–6.7 | 3 | 8 | 5.9† | 1.3–27.2 | 2.9† | 1.1–7.4 |
| 55 | Building caretakers, charworkers, cleaners | 1 | 15 | 1.3 | 0.2–11.0 | 4 | 12 | 5.1† | 1.3–19.7 | 3.1 | 1.0–10.1 |
| 60–61 | Farmers | 2 | 4 | 10.4† | 1.5–69.8 | 3 | 6 | 8.6‡ | 1.8–40.0 | 9.2‡ | 2.6–33.1 |
| 62 | Agriculture and animal husbandry workers | 4 | 53 | 0.9 | 0.3–3.0 | 6 | 12 | 7.2‡ | 2.2–24.2 | 1.9 | 0.8–4.9 |
| 95 | Bricklayers, carpenters, and other construction workers | 6 | 30 | 3.6† | 1.1–11.3 | 3 | 10 | 4.7† | 1.0–21.4 | 3.9† | 1.4–10.9 |
| 97 | Material handling and related equipment operators, dockers, and freight handlers | 5 | 20 | 3.9† | 1.2–12.5 | 3 | 6 | 8.1† | 1.6–41.3 | 4.8‡ | 1.7–13.2 |
All lymphoma subentities with n>30 are included in the analysis; odds ratios for B‐NHL in total are not shown.
*Odds ratio (OR) adjusted for age, sex, region, smoking (pack‐years), and alcohol consumption.
†p<0.05; p<0.01.