Table 4.
Risk of nasal NK/T-cell lymphoma in relation to cultivation of crops and pesticide use
| Odds ration (OR)a | Number of cases N = 88 | Number of controls N = 305 | 95% CI | ||
|---|---|---|---|---|---|
| Lower | Upper | ||||
| Cultivation of crops | |||||
| At present | 2.81 | 27 | 36 | 1.49 | 5.29 |
| More than 5 years | 5.08 | 24 | 19 | 2.47 | 10.43 |
| Pesticides | |||||
| Users | 4.01 | 23 | 23 | 1.99 | 8.09 |
| Type of pesticide | |||||
| Herbicide | 3.17 | 13 | 16 | 1.36 | 7.38 |
| Insecticide | 3.45 | 20 | 21 | 1.67 | 7.13 |
| Fungicide | 6.05 | 10 | 6 | 1.98 | 18.46 |
| Precautions | |||||
| Gloves used | 3.30 | 10 | 11 | 1.28 | 8.54 |
| Gloves not used | 4.76 | 13 | 12 | 1.93 | 11.72 |
| Mask used | 5.44 | 14 | 10 | 2.20 | 13.47 |
| Mask not used | 2.82 | 9 | 13 | 1.08 | 7.37 |
| Glasses used | 1.18 | 1 | 3 | 0.11 | 12.13 |
| Glasses not used | 4.52 | 22 | 20 | 2.17 | 9.42 |
| Sprinkling downward attended | 2.20 | 9 | 16 | 0.88 | 5.53 |
| Sprinkling downward not attended | 8.45 | 14 | 7 | 3.01 | 23.70 |
CI confidence interval
aAdjusted for age (<40, 40–59, >60), sex (male/female) and country (Japan, Korea and China)