Table 2 Industry groups and risk of oesophageal and gastric cardia cancers.
| Industry group*† | Controls (n) | Adenocarcinoma of oesophagus‡ | Adenocarcinoma of gastric cardia‡ | Squamous cell carcinoma of oesophagus‡ | |||
|---|---|---|---|---|---|---|---|
| Cases (n) | OR§ (95% CI) | Cases (n) | OR§ (95% CI) | Cases (n) | OR¶ (95% CI) | ||
| Agriculture and hunting | 51 | 20 | 1.4 (0.8–2.7) | 18 | 1.1 (0.6–2.1) | 4 | 0.7 (0.2–2.1) |
| Forestry | 21 | 4 | 0.4 (0.1–1.4) | 4 | 0.5 (0.2–1.4) | 1 | 0.5 (0.1–3.8) |
| Food product and beverage industry | 19 | 4 | 0.7 (0.2–2.4) | 8 | 1.2 (0.5–2.9) | 2 | 0.6 (0.1–2.9) |
| Wood production | 12 | 3 | 0.4 (0.1–1.8) | 5 | 1.0 (0.3–3.2) | 2 | 1.6 (0.3–8.4) |
| Pulp and paper production | 17 | 4 | 0.8 (0.2–2.7) | 3 | 0.4 (0.1–1.4) | 1 | 0.3 (0.0–2.9) |
| Publishers and printing industry | 15 | 4 | 2.7 (0.7–9.7) | 3 | 0.7 (0.2–2.5) | 2 | 0.6 (0.1–3.4) |
| Chemical production | 10 | 2 | 1.6 (0.3–8.7) | 2 | 0.7 (0.1–3.3) | 1 | 0.4 (0.0–3.5) |
| Non‐metallic mineral production | 8 | 1 | 0.5 (0.0–4.7) | 4 | 1.5 (0.4–5.4) | 3 | 2.3 (0.5–10.1) |
| Steel and metal production | 12 | 2 | 0.9 (0.2–4.7) | 2 | 0.6 (0.1–2.8) | 1 | 0.8 (0.1–6.4) |
| Metal product industry | 26 | 3 | 0.3 (0.1–1.0) | 5 | 0.4 (0.2–1.2) | 2 | 0.4 (0.1–2.0) |
| Machine production | 20 | 9 | 1.2 (0.5–3.2) | 5 | 0.8 (0.3–2.3) | 3 | 1.0 (0.2–3.7) |
| Office machine and computer production | 3 | 0 | – | 3 | 3.7 (0.7–21.1) | 1 | 1.6 (0.1–21.1) |
| Tele product industry | 13 | 3 | 1.6 (0.4–6.7) | 2 | 0.6 (0.1–2.7) | 2 | 0.9 (0.2–4.7) |
| Motor vehicle industry | 10 | 3 | 1.3 (0.3–6.4) | 10 | 3.9 (1.5–10.4) | 2 | 1.3 (0.2–7.3) |
| Other transport equipment production | 13 | 3 | 1.6 (0.4–7.0) | 6 | 1.9 (0.6–5.4) | 2 | 1.3 (0.3–6.4) |
| Furniture and other production | 11 | 1 | 0.7 (0.1–5.7) | 2 | 0.6 (0.1–2.8) | 2 | 1.0 (0.2–5.3) |
| Electric power, gas, heat, and water | 10 | 1 | 0.7 (0.1–6.3) | 2 | 0.6 (0.1–2.9) | 1 | 0.5 (0.1–4.5) |
| Construction industry | 72 | 26 | 1.4 (0.8–2.4) | 21 | 0.7 (0.4–1.2) | 24 | 1.6 (0.9–2.8) |
| Motor vehicle trade and repair, petrol stations | 18 | 9 | 2.2 (0.8–5.7) | 10 | 1.5 (0.7–3.5) | 5 | 1.2 (0.4–3.8) |
| Wholesale trade | 27 | 5 | 1.1 (0.4–3.2) | 6 | 0.7 (0.3–1.8) | 1 | 0.3 (0.0–2.0) |
| Retail trade and repair shops | 51 | 6 | 0.7 (0.3–1.7) | 20 | 1.2 (0.7–2.2) | 17 | 1.4 (0.7–2.6) |
| Hotels and restaurants | 6 | 3 | 2.0 (0.3–11.3) | 6 | 2.8 (0.8–9.3) | 7 | 4.9 (1.4–17.3) |
| Land transport companies | 51 | 14 | 1.2 (0.6–2.4) | 19 | 1.0 (0.6–1.8) | 6 | 0.5 (0.2–1.3) |
| Transport support and travel agencies | 11 | 2 | 0.9 (0.2–4.9) | 3 | 0.7 (0.2–2.6) | 2 | 0.5 (0.1–2.5) |
| Post and telecommunications | 12 | 2 | 0.7 (0.1–4.2) | 4 | 1.1 (0.3–3.8) | 4 | 1.2 (0.3–4.8) |
| Banks and other financial institutions | 12 | 0 | – | 2 | 0.7 (0.1–3.5) | 1 | 0.7 (0.1–5.6) |
| Insurance companies | 6 | 2 | 2.5 (0.4–16.3) | 1 | 0.5 (0.1–4.3) | 0 | – |
| Real estate companies | 10 | 3 | 1.1 (0.3–4.9) | 4 | 1.4 (0.4–4.9) | 4 | 2.0 (0.5–7.2) |
| Other business service companies | 24 | 2 | 0.7 (0.2–3.4) | 5 | 0.9 (0.3–2.4) | 6 | 1.1 (0.4–3.3) |
| Public sector and defence | 68 | 14 | 1.3 (0.7–2.6) | 23 | 1.2 (0.7–2.1) | 12 | 0.8 (0.4–1.7) |
| Educational establishments | 40 | 4 | 0.4 (0.1–1.2) | 10 | 0.9 (0.4–1.8) | 2 | 0.2 (0.1–0.9) |
| Health, nursing, and social services | 50 | 6 | 0.8 (0.3–2.2) | 12 | 0.9 (0.4–1.8) | 14 | 1.3 (0.6–2.8) |
| Non‐governmental and religious organisations | 14 | 2 | 0.5 (0.1–3.1) | 4 | 0.9 (0.3–3.1) | 1 | 0.4 (0.0–3.4) |
| Recreational, cultural, and sporting establishments | 7 | 0 | – | 3 | 1.4 (0.3–6.1) | 2 | 1.1 (0.2–6.1) |
| Other personal services | 6 | 1 | 0.6 (0.1–6.1) | 1 | 0.6 (0.1–5.1) | 1 | 0.9 (0.1–10.1) |
| Employment in households | 5 | 3 | 1.2 (0.2–7.1) | 1 | 0.5 (0.1–4.5) | 4 | 1.8 (0.4–7.9) |
*The total number of industry groups (two digit industrial classifications) was 50. In the table we only present results from analyses of industry groups including at least five exposed control participants.
†In the analyses a given industry of longest duration (“exposed”) was compared to all the other industries of longest duration combined (“unexposed”; reference group).
‡Observations with missing data on any covariate included in the models were excluded from the analyses. There were 10 oesophageal adenocarcinoma cases, eight cardia adenocarcinoma cases, nine oesophageal squamous cell carcinoma cases, and 24 control participants with missing data on industry. Four controls had missing data on BMI and were not included in the analyses of the adenocarcinomas.
§OR controlled for age and sex by matching and adjusted for reflux symptoms, BMI and tobacco smoking.
¶OR controlled for age and sex by matching and adjusted for tobacco smoking and alcohol use.