Table 1 Basic demographic and cognitive characterization of the study’s cohort.

From: Signatures of white-matter microstructure degradation during aging and its association with cognitive status

 

Baseline

Mean ± SD (range)

Follow-up

Mean ± SD (range)

Test statistic

N (females/males)

51 (26/25)

–

–

Age (years)

63.5 ± 7.41 (51–82)

68.0 ± 7.25 (55–86)

 

Interval (months)

52.8 ± 7.24 (45–73)

–

 

Education (years)

5.98 ± 3.97 (0–17)

–

 

LTS

0.53 ± 0.24 (0.069–1)

0.43 ± 0.24 (0–1)

t(50) = 3.40, p = 0.003**, d = 0.48

CLTR

0.38 ± 0.26 (0–1)

0.33 ± 0.25 (0–1)

t(50) = 1.86, p = 0.096

DR

0.50 ± 0.27 (0–1)

0.45 ± 0.25 (0–1)

t(50) = 1.11, p = 0.32

SW

0.55 ± 0.27 (0.013–1)

0.55 ± 0.22 (0–1)

t(50) = 0.30, p = 0.77

SC

0.63 ± 0.21 (0–0.99)

0.53 ± 0.26 (0–1)

t(50) = 4.48, p = 0.0003***, d = 0.63

SWC

0.53 ± 0.23 (0–1)

0.49 ± 0.24 (0–1)

t(50) = 1.98, p = 0.094

MMSE

0.82 ± 0.22 (0–1)

0.72 ± 0.23 (0.077–1)

t(50) = 4.04, p = 0.0006***, d = 0.57

  1. Statistical results FDR corrected at p < 0.05.
  2. LTS long-term storage, CLTR consistent long-term retrieval, DR delayed-recall, SW Stroop words, SC Stroop colors, SWC Stroop words/colors, MMSE Mini-Mental State Examination.
  3. Significance codes: *p < 0.05, **p < 0.01, ***p < 0.001.
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