Table 4.
Multiple logistic regression: study-level predictors of study finding*
| Odds Ratio | (95% CI) | P-value | |
|---|---|---|---|
|
Year |
1.06 |
(0.98;1.14) |
0.13 |
|
Country |
|
|
|
| US |
1.00 |
|
|
| Europe |
0.96 |
(0.45;2.06) |
0.92 |
| Other |
0.99 |
(0.35;2.80) |
0.99 |
|
Age group |
|
|
|
| Excludes < 65y |
1.00 |
|
|
| Includes < 65y |
0.80 |
(0.40;1.60) |
0.53 |
|
Study design |
|
|
|
| Cross-sectional |
1.00 |
|
|
| Cohort |
0.60 |
(0.27;1.33) |
0.21 |
|
Sample size |
1.00 |
(0.99;1.00) |
0.25 |
|
Cognitive outcome count |
1.03 |
(0.54;1.98) |
0.92 |
|
Cognitive outcome type |
|
|
|
| AD/dementia/impairment |
1.00 |
|
|
| Cognitive function/decline |
1.52 |
(0.72;3.22) |
0.27 |
| Both |
1.78 |
(0.16;19.7) |
0.64 |
|
Risk factor |
|
|
|
| EDU |
1.00 |
|
|
| SMOK |
0.21 |
(0.06;0.70) |
0.012 |
| ALCO |
0.33 |
(0.08;1.29) |
0.11 |
| PA |
2.49 |
(0.26;24.29) |
0.43 |
| CAFF |
0.18 |
(0.04;0.84) |
0.029 |
| ANTIOX |
0.20 |
(0.06;0.75) |
0.016 |
| HCY |
0.41 |
(0.10;1.67) |
0.22 |
| N-3 FA | 0.25 | (0.06;1.05) | 0.06 |
*Positive or partially positive finding coded as “1”, Null or against hypothesized finding coded as “0” (referent category).
Gender composition of the sample was excluded as a predictor due to lack of variability.