Psychotic (n=118) | Non-psychotic (n=110) | Statistical value | p Value | |
---|---|---|---|---|
Age at examination (y) | 74.5 (6.9) | 70.7 (9.0) | t(226) = 3.50 | 0.0006 |
Sex (female : male) | 97 : 21 | 76 : 34 | χ2(1) = 5.35 | 0.021 |
Education (y) | 8.5 (2.0) | 9.2 (2.4) | t(226) = 2.20 | 0.029 |
Duration of illness (months) | 39.7 (30.7) | 31.8 (25.7) | t(226) = 2.09 | 0.037 |
Age at onset (y) | 71.1 (7.7) | 68.2 (9.3) | t(226)= 2.62 | 0.009 |
ApoE ε4 (positive : negative) | 76 : 42 | 66 : 44 | χ 2(1) = 0.47 | 0.49 |
MMSE | 18.5 (4.2) | 19.5 ± 4.0 | t(226) = 2.71 | 0.007 |
Mean (SD).
ApoE = apolipoprotein E; MMSE = mini mental state examination.