Table 4.
Results of multiple linear regression analyses between the Omega-3 Index and score on the Letter Digit Substitution Test (LDST) in the complete sample.
| Predictor Variable | Β (Standardized) 1 | Significance 2 |
|---|---|---|
| Model A (r2 = 0.058, df = 7, p = 0.051) | ||
| Smoking | 0.028 | 0.679 |
| Alcohol consumption | 0.031 | 0.649 |
| BMI | 0.089 | 0.171 |
| Age | 0.047 | 0.477 |
| Sex | 0.177 | 0.007 |
| Highest LPE | −0.056 | 0.387 |
| Diagnosis | −0.104 | 0.113 |
| Model B (r2 = 0.075, df = 8, p = 0.019) | ||
| Smoking | 0.031 | 0.643 |
| Alcohol consumption | 0.045 | 0.500 |
| BMI | 0.080 | 0.218 |
| Age | 0.036 | 0.584 |
| Sex | 0.172 | 0.008 |
| Highest LPE 3 | −0.084 | 0.203 |
| Diagnosis | −0.094 | 0.147 |
| Omega-3 Index | 0.136 | 0.039 |
1 Standardized beta refers to how many standard deviations the dependent variable will change per standard deviation change in the predictor variable. Smoking, sex, and diagnosis were not standardized as they are dichotomous variables; 2 Significant results (p < 0.05) are printed in bold; 3 LPE = level of parental education.