Table 2.
Associations of APOE2 and APOE4 with neuritic plaque score, AD-tau, and AGD-tau
| Variable | APOE2 present | APOE2 absent | Unadjusted analysis | Adjusting for age and sex | ||||
|---|---|---|---|---|---|---|---|---|
| N | Median (minimum, maximum) or No. (%) of subjects | N | Median (minimum, maximum) or No. (%) of subjects | Estimate (95% CI) | P-value | Estimate (95% CI) | P-value | |
| Neuritic plaque score | 45 | 308 | 0.44 (0.25, 0.78) | 0.005 | 0.49 (0.28, 0.87) | 0.015 | ||
| 0 | 20 (44.4%) | 60 (19.5%) | ||||||
| 1 | 4 (8.9%) | 62 (20.1%) | ||||||
| 2 | 10 (22.2%) | 76 (24.7%) | ||||||
| 3 | 11 (24.4%) | 110 (35.7%) | ||||||
| AD-tau | 45 | 16 (35.6%) | 302 | 181 (59.9%) | 0.37 (0.19, 0.70) | 0.003 | 0.40 (0.20, 0.78) | 0.007 |
| AGD-tau | 45 | 11 (24.4%) | 308 | 40 (13.0%) | 2.17 (0.98, 4.51) | 0.045 | 1.89 (0.84, 4.00) | 0.11 |
| Variable | APOE4 present | APOE4 absent | Unadjusted analysis | Adjusting for age and sex | ||||
|---|---|---|---|---|---|---|---|---|
| N | Median (minimum, maximum) or No. (%) of subjects | N | Median (minimum, maximum) or No. (%) of subjects | Estimate (95% CI) | P-value | Estimate (95% CI) | P-value | |
| Neuritic plaque score | 152 | 201 | 5.31 (3.51, 8.05) | < 0.001 | 4.86 (3.17, 7.46) | < 0.001 | ||
| 0 | 7 (4.6%) | 73 (36.3%) | ||||||
| 1 | 26 (17.1%) | 40 (19.9%) | ||||||
| 2 | 37 (24.3%) | 49 (24.4%) | ||||||
| 3 | 82 (53.9%) | 39 (19.4%) | ||||||
| AD-tau | 148 | 120 (81.1%) | 199 | 77 (38.7%) | 6.79 (4.16, 11.36) | < 0.001 | 6.34 (3.83, 10.76) | < 0.001 |
| AGD-tau | 152 | 13 (8.6%) | 201 | 38 (18.9%) | 0.40 (0.20, 0.76) | 0.007 | 0.49 (0.24, 0.95) | 0.041 |
CI Confidence interval. For neuritic plaque score, odds ratios, 95% CIs, and p-values result from proportional odds logistic regression models; odds ratios are interpreted as the multiplicative increase in the odds of a higher neuritic plaque score corresponding to presence of APOE2 or APOE4. For AD-tau and AGD-tau, odds ratios, 95% CIs, and p-value result from binary logistic regression models; odds ratios are interpreted as the multiplicative increase in the odds of the given outcome (AD-tau or AGD-tau) corresponding to presence of APOE2 or APOE4. P-values < 0.0167 were considered as statistically significant after applying a Bonferroni correction for multiple testing; significant findings are shown in bold