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. 2021 Jul 1;16(7):e0254038. doi: 10.1371/journal.pone.0254038

Table 3. Effects of age, sex and survey wave on verbal fluency and delayed recall for each country compared by OLS- regression; confidence intervals estimated with 2000 bootstrap samples.

Verbal fluency: Germany Delayed recall: Germany
Variable Coeff. StE p 95% CI; lower/upper limit Coeff. StE p 95% CI; lower/ upper limit
Age: 50–54 Ref. = 1 -- -- -- Ref. = 1 -- -- --
  55–59 -0.50 0.28 0.08 -1.04/ 0.05 -0.35 0.08 <0.001 -0.51/ -0.19
  60–64 -1.71 0.28 <0.001 -2.25/ -1.16 -0.84 0.0 <0.00 -1.00/ -0.68
  65–69 -2.15 0.30 <0.001 -2.72/ -1.58 -1.02 80.0 1<0.00 -1.19/ -0.86
  70–74 -3.36 0.31 <0.001 -3.97/ -2.74 -1.45 90.0 1<0.00 -1.64/ -1.28
  75–79 -5.01 0.34 <0.001 -5.68/ -4.34 -1.80 90.1 1<0.00 - 2.00/- 1.61
  80–84 -6.59 0.45 <0.001 - 7.47/ -5.71 -2.44 00.1 1<0.00 -2.70/ -2.18
  85–89 -8.48 0.65 <0.001 -9.76/ -7.19 -2.92 30.1 1<0.00 -3.30/ -2.50
  90+ -9.69 1.27 <0.001 - 12.16/ -7.20 -3.41 90.37 1<0.001 - 4.14/ -2.68
Sex:Male Ref. = 1 -- -- -- Ref. = 1 -- -- --
  Female -0.25 0.17 0.14 -0.60/ 0.08 0.35 0.05 <0.001 0.25/ 0.45
Survey:2004 Ref. = 1 -- -- -- Ref. = 1 -- -- --
   2013 2.28 0.19 <0.001 1.91/ 2.64 0.50 0.05 <0.001 0.39/ 0.60
Constant 22.32 0.25 <0.001 21.82/ 22.82 4.46 0.07 <0.001 4.32/ 4.61
Verbal fluency: Spain Delayed recall: Spain
Age: 50–54 Ref. = 1 -- -- -- Ref. = 1 -- -- --
  55–59 -0.57 0.34 0.09 -1.23/0.09 -0.33 0.09 <0.001 -0.50/ -0.15
  60–64 -1.11 0.35 0.001 -1.79/ -0.44 -0.50 0.09 <0.001 -0.69/ -0.32
  65–69 -2.37 0.35 <0.001 -3.06/ -1.68 -0.76 0.09 <0.001 -0.95/ -0.58
  70–74 -3.01 0.40 <0.001 - 3.73/ -2.28 -1.14 0.10 <0.001 -1.34/ -0.95
  75–79 -4.82 0.40 <0.001 - 5.60/ -4.04 -1.60 0.10 <0.001 -1.80/ -1.38
  80–84 -5.36 0.46 <0.001 - 6.27/ -4.45 -1.90 0.13 <0.001 -2.14/ -1.66
  85–89 -6.84 0.62 <0.001 -8.06/ -5.62 -2.36 0.17 <0.001 -2.69/ -2.03
  90+ -6.86 1.30 <0.001 -9.41/ -4.32 -1.97 0.35 <0.001 -2.66/ -1.28
Sex:Male Ref. = 1 -- -- -- Ref. = 1 -- -- --
  Female -1.02 0.20 <0.001 -1.41/ -0.63 0.05 0.05 0.32 -0.05/0.16
Survey:2004 Ref. = 1 -- -- -- Ref. = 1 -- -- --
   2013 2.31 0.20 <0.001 1.92/ 2.72 0.80 0.05 <0.001 0.65/ 0.87
Constant 17.83 0.30 <0.001 17.25/ 18.42 3.17 0.08 <0.001 3.02/ 3.33
Verbal fluency: Sweden Delayed recall: Sweden
Age: 50–54 Ref. = 1 -- -- -- Ref. = 1 -- -- --
  55–59 -0.30 0.33 0.38 -0.94/ 0.36 0.33 0.09 <0.001 -0.15/ -0.16
  60–64 -0.82 0.33 0.01 -1.47/ -0.17 0.52 0.09 <0.001 -0.70/ -0.34
  65–69 -2.19 0.33 <0.001 -2.84/ -1.54 0.80 0.09 <0.001 -0.98/ -0.62
  70–74 -3.36 0.36 <0.001 -4.07/ -2.64 1.32 0.10 <0.001 -1.52/ -1.13
  75–79 -5.49 0.40 <0.001 -6.27/ -4.71 1.60 0.11 <0.001 -1.81/ -1.39
  80–84 -7.00 0.48 <0.001 -7.94/ -6.04 2.20 0.13 <0.001 -2.46/ -1.95
  85–89 -8.53 0.64 <0.001 -9.79/ -7.26 2.87 0.17 <0.001 -3.23/ -2.53
  90+ -10.08 1.31 <0.001 -12.66/ -7.50 2.96 0.36 <0.001 -3.66/ -2.26
Sex:Male Ref. = 1 -- -- -- Ref. = 1 -- -- --
  Female 0.10 0.19 0.59 -0.27/ 0.47 0.63 0.05 <0.001 0.53/ 0.73
Survey:2004 Ref. = 1 -- -- -- Ref. = 1 -- -- --
   2013 0.13 0.19 0.49 -0.24/ 0.50 0.28 0.05 <0.001 0.18/ 0.38
Constant 24.43 0.28 <0.001 24.87/ 25.98 4.53 0.08 <0.001 4.38/ 4.68