Table 5. Correlation between DASH score and dietary quality .
| Variables | r | P value for trend * |
| DDS | 0.24 | <0.001 |
| AHE-I | -0.20 | <0.001 |
| DED | -0.39 | <0.001 |
| MAR | 0.19 | 0.001 |
| Mediterranean | 0.20 | 0.001 |
| NAR | ||
| Iron | 0.12 | 0.033 |
| Calcium | 0.23 | <0.033 |
| Zinc | 0.03 | 0.545 |
| Vitamin D | 0.04 | 0.944 |
| Vitamin C | 0.17 | 0.003 |
| Vitamin A | 0.19 | 0.001 |
| Vitamin B6 | 0.04 | 0.471 |
| Vitamin B12 | -0.03 | 0.602 |
| Vitamin B2 | 0.14 | 0.010 |
| Vitamin B3 | -0.07 | 0.191 |
DASH: Dietary approach to stop hypertension, DDS: dietary diversity score, AHEI: Alternative Healthy Eating Index, DED: dietary energy density, MAR: mean adequacy ratio, NAR: nutrient adequacy ratio.
aThe partial correlation was run to determine the interaction between DASH score and dietary quality while controlling for energy intake, age, educational level and income (<0.05 is significant).