Table 3.
Dietary questionnaire results of participants in this study
| Factors | Case (n = 9) | Control (n = 28) | p valuea |
|---|---|---|---|
| Drinking water (person (%)) | |||
| Tap/mineral water | 3 (33.3) | 5 (17.8) | 0.064 |
| Ground water | 6 (66.7) | 23 (82.1) | |
| Rice (person (%)) | |||
| All self-sufficiency | 9 (100) | 21 (75.0) | 0.160 |
| All purchase | – | 7 (25.0) | |
| Vegetables (person (%)) | |||
| All self-sufficiency | 7 (77.8) | 26 (92.9) | 0.244 |
| All purchase | 2 (22.2) | 2 (7.1) | |
| Fish (person (%)) | |||
| All self-sufficiency | – | 11 (39.3) | 0.077 |
| Half self-sufficiency | 2 (22.2) | 3 (10.7) | |
| All purchase | 7 (77.8) | 14 (50.0) | |
| Shellfish (person (%)) | |||
| All self-sufficiency | 2 (22.2) | 23 (82.1) | 0.002 |
| All purchase | 7 (77.8) | 5 (17.9) | |
aChi-square test (Fisher’s exact test)