| 1 serving | 236 | 12.9 | (12.4 to 13.4) | 0.99 | |
| ≤1 serving/2 days | 57 | 12.1 | (11.0 to 13.1) | 0.23 | |
| Types of pickled vegetables per day | ≥2 types | 64 | 13.3 | (12.3 to 14.2) | - |
| 1 type | 220 | 13.1 | (12.6 to 13.6) | 0.99 | |
| ≤1/2 days | 208 | 12.7 | (12.1 to 13.2) | 0.90 | |
| Having salt-cured fish eggs per day | ≥1 time | 131 | 13.6 | (13.0 to 14.3) | - |
| ≤1 serving/2 days | 361 | 12.7 | (12.3 to 13.1) | 0.022 | |
| Having salty snacks per day | ≥2 times | 11 | 13.7 | (11.4 to 16.1) | - |
| 1 time | 232 | 12.8 | (12.3 to 13.3) | 0.99 | |
| ≤1/2 days | 249 | 13.1 | (12.6 to 13.6) | 0.99 | |
| Quantity of soup consumed when eating noodles | ≥1/3 | 455 | 13.1 | (12.7 to 13.4) | - |
| Very little | 37 | 11.3 | (10.0 to 12.6) | 0.011 | |
| Addition of seasoning to cooked dishes | Yes | 355 | 13.0 | (12.6 to 13.5) | - |
| No | 137 | 12.7 | (12.0 to 13.4) | 0.39 | |
| Preference for strong-tasting meals | Yes | 215 | 13.3 | (12.8 to 13.8) | - |
| No | 277 | 12.7 | (12.2 to 13.1) | 0.09 | |
| Frequency of using delicatessen food | ≥2 times/week | 199 | 13.2 | (12.6 to 13.7) | - |
| ≤1 time/week | 293 | 12.8 | (12.4 to 13.3) | 0.33 | |
| Frequency of eating out | ≥2 times/week | 190 | 13.6 | (13.0 to 14.2) | - |
| ≤1 time/week | 302 | 12.6 | (12.1 to 13.0) | 0.005 | |
| Whether trying to reduce salt intake | Trying actively | 37 | 12.8 | (11.5 to 14.1) | - |
| Trying a little | 169 | 13.1 | (12.5 to 13.7) | 0.42 | |
| Not trying much | 185 | 12.8 | (12.3 to 13.4) | 0.36 | |
| Not trying at all | 101 | 13.0 | (12.2 to 13.8) | 0.99 | |
| Use of dashi flavor, broth, or stock and the natural taste of food | Trying actively | 52 | 12.7 | (11.7 to 13.8) | - |
| Trying a little | 178 | 12.8 | (12.2 to 13.4) | 0.99 | |
| Not trying much | 164 | 13.2 | (12.6 to 13.8) | 0.99 | |
| Not trying at all | 98 | 12.9 | (12.1 to 13.7) | 0.99 | |
| Whether trying to have a meal consisting of a staple food, main dish, and side dishes | Trying actively | 61 | 12.3 | (11.3 to 13.3) | - |
| Trying a little | 121 | 13.2 | (12.5 to 13.9) | 0.99 | |
| Not trying much | 241 | 13.1 | (12.6 to 13.6) | 0.99 | |
| Not trying at all | 69 | 12.7 | (11.7 to 13.6) | 0.99 | |
| Frequency of alcohol consumption | Daily | 145 | 13.5 | (12.9 to 14.2) | - |
| Occasionally | 159 | 12.9 | (12.3 to 13.5) | 0.46 | |
| ≤1 serving/2 days | 188 | 12.6 | (12.0 to 13.1) | 0.11 |