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Distribution of "intrusion" errors (false positive items recalled).
| Items of the list | Older controls | Younger controls | AD patients |
|---|---|---|---|
| "False positive" - N (%) | 5 (2.4%) | 34 (16.2%) | 25 (31.8%) |
| Actual items - N (%) | 164 (97.6%) | 145 (83.8%) | 30 (68.2%) |
| Total | 169 | 179 | 55 |
Chi-square: 36.28; p=0.00001; OR (Mantel-Haenszel) for all strata: 4.89-95% CL 2.7-8.04.
