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Correlation of knowledge and illness perception with sodium intake.
| Variables | Pearson correlation | |
|---|---|---|
| Correlation coefficient | P value | |
| Controlled group (N = 433) | ||
| Illness perception | −0.381 | P < 0.001 |
| Knowledge | −0.268 | P < 0.001 |
| Uncontrolled group (N = 238) | ||
| Illness perception | −0.666 | P < 0.001 |
| Knowledge | −0.652 | P < 0.001 |
