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. 2023 Sep 28;20(1):615–628. doi: 10.1002/alz.13486

TABLE 1.

Baseline characteristics of AgeWell.de study participants.

Intervention (n = 378) Control (n = 441)
Variables Raw values z scores a Raw values z scores a
Sociodemographic characteristics
Age in years 69.1 (4.9) 69.0 (4.9)
Female sex, n (%) 199 (52.7) 234 (53.1)
Education, n (%)
Low 83 (18.8) 98 (25.9)
Intermediate 238 (54.0) 196 (51.9)
High 120 (27.2) 84 (22.2)
Primary outcome
Cognitive performance (composite score) −0.009 (0.568) −0.004 (0.974) −0.005 (0.594) 0.003 (1.021)
Secondary outcomes
ADL 0.963 (0.189) 0.961 (0.193)
IADL 67.26 (3.20) –0.054 (0.948) 67.31 (3.39) 0.046 (1.039)
Quality of life 74.51 (10.57) 0.066 (0.961) 73.12 (10.93) –0.058 (1.025)
Health‐related quality of life 78.27 (14.93) 0.090 (0.964) 75.63 (16.02) –0.078 (1.024)
Depressive symptoms 1.484 (1.859) 1.493 (1.849)
Social inclusion 17.78 (5.47) 0.056 (0.979) 17.20 (5.68) –0.047 (1.012)

Notes: Data are mean (SD), except when indicated otherwise.

Abbreviations: ADL, activities of daily living (dichotomized score); IADL, instrumental activities of daily living; SD, standard deviation.

a

z scores were standardized to baseline mean and SD, with higher values indicating better performance.