Cases | Controls | OR* | 95% CI | p value for trend | |
---|---|---|---|---|---|
*Odds ratio adjusted for age and gender. | |||||
†Reference category: non-farmers. | |||||
‡Sum of total number of nitrosatable pesticides used. | |||||
§From first to last year of nitrosatable pesticides used. | |||||
Total number of nitrosatable pesticides usde‡ | |||||
Stomach | |||||
Non-farmers | 59 | 184 | 1.0 | Ref† | |
0 | 52 | 122 | 0.9 | 0.5 to 1.4 | |
1–3 | 21 | 38 | 1.2 | 0.6 to 2.2 | |
⩾4 | 15 | 61 | 0.7 | 0.3 to 1.3 | 0.436 |
Oesophagus | |||||
Non-farmers | 62 | 184 | 1.0 | Ref† | |
0 | 33 | 122 | 0.8 | 0.5 to 1.4 | |
1–3 | 6 | 38 | 0.5 | 0.2 to 1.2 | |
⩾4 | 17 | 61 | 0.7 | 0.4 to 1.4 | 0.206 |
Total year of nitrosatable pesticides used§ | |||||
Stomach | |||||
Non-farmers | 59 | 184 | 1.0 | Ref† | |
0 | 70 | 159 | 0.9 | 0.6 to 1.4 | |
⩽20 | 9 | 35 | 0.7 | 0.3 to 1.7 | |
>20 | 9 | 27 | 0.8 | 0.3 to 1.8 | 0.414 |
Oesophagus | |||||
Non-farmers | 62 | 184 | 1.0 | Ref† | |
0 | 42 | 159 | 0.8 | 0.5 to 1.3 | |
⩽20 | 5 | 35 | 0.4 | 0.2 to 1.1 | |
>20 | 9 | 27 | 0.8 | 0.4 to 1.9 | 0.203 |