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Table 1 Sociodemographic, genetic, mood, and SCDplus features descriptive data in the whole sample

From: Brain and cognitive correlates of subjective cognitive decline-plus features in a population-based cohort

  Non-SCD group SCD– group SCD+ group
N 2098 319 253
Age, mean (SD) 55.41 (6.62) 55.62 (6.22) 59.10 (7.12)*,**
Education, mean (SD) 13.41 (3.52) 13.38 (3.55) 12.83 (3.41)*
Females, n (%) 1316 (62.7%) 218 (68.3%) 154 (60.9%)
GADS—anxiety, mean (SD) 0.49 (1.07) 0.92 (1.51)* 0.90 (1.41)*
GADS—depression, mean (SD) 0.11 (0.52) 0.35 (0.93)* 0.44 (1.07)*
SCDplus features, n (%)
 Worry about the decline   165 (51.7%) 223 (88.1%)**
 Change in the last 2 years   179 (56.1%) 233 (92.1%)**
 Age > 60 years   62 (19.4%) 133 (52.6%)**
 Confirmation by informanta   37 (11.6%) 122 (48.2%)**
APOE ε4 carriers 731 (34.8%) 52 (16.3%)* 144 (56.9%)*,**
  1. SCDplus subjective cognitive decline plus, non-SCD not self-reporting cognitive decline, SCD– SCD with ≤ 3 SCDplus features, SCD+ SCD with >3 SCDplus features, SCD subjective cognitive decline, SD standard deviation, GADS Goldberg Anxiety and Depression Scale, APOE apolipoprotein E, ANOVA analysis of variance
  2. aData available in 568 out of 572 participants with SCD
  3. *p < 0.05 as compared to non-SCD; pairwise (Tukey) ANOVA/chi-square test
  4. **p < 0.05 as compared to SCD–; pairwise (Tukey) ANOVA/chi-square test