Table 2.
Demographic and clinical assessment means (SD) for total sample and each Aβ group at baseline assessment
| Demographic and clinical characteristic | Total |
Aβ− |
Aβ+ |
P |
|---|---|---|---|---|
| Mean (SD) | Mean (SD) | Mean (SD) | ||
| N | 335 | 277 | 58 | |
| %Female | 57.9 | 58.5 | 55.2 | .64 |
| %APOE ε4 carrier | 25.1 | 19.5 | 35.7 | .00 |
| Age | 68.28 (5.71) | 67.62 (5.36) | 71.43 (6.26) | .00 |
| MMSE∗ | 29 (5) | 29 (5) | 29 (4) | .49 |
| Estimated IQ (WTAR)∗ | 114 (35) | 114 (35) | 114 (27) | .13 |
| HADS Depression∗ | 2 (14) | 2 (11) | 2 (14) | .87 |
| HADS Anxiety∗ | 4 (15) | 4 (12) | 4 (15) | .98 |
| Systolic BP | 136.52 (14.24) | 136.11 (14.56) | 138.58 (12.39) | .20 |
| Diastolic BP | 78.42 (9.23) | 78.13 (9.52) | 79.89 (7.51) | .21 |
| Heart Rate | 67.05 (9.26) | 66.84 (9.33) | 68.06 (8.97) | .38 |
| Abdominal Circumference | 91.40 (12.56) | 91.45 (12.81) | 91.15 (11.29) | .88 |
| Body Mass Index | 26.36 (3.93) | 26.47 (3.954) | 25.84 (3.81) | .28 |
Abbreviations: APOE, apolipoprotein E; BP, blood pressure; HADS, Hospital Anxiety and Depression Scale; IQ, intelligence quotient; MMSE, Mini–Mental State Examination; SD, standard deviation; WTAR, Wechsler Test of Adult Reading.
NOTE. Bold data indicates statistical significance (P <.05).
∗
Non-normal distribution–Mann-Whitney test, median and range reported.