Skip to main content

Table 1 Baseline characteristics of study sample

From: Comparison of cognitive functioning as measured by the Ruff Figural Fluency Test and the CogState computerized battery within the LifeLines Cohort Study

 

LifeLines sample adult populationa

Total sample present study population

Sample present study population in the correlation analyses

N (%)b

N

N (%)b

N

N (%)b

N

Age (years), mean (SD)

45 (13.1)

152180

53 (14.6)

509

53 (14.5)

471

Gender (female)

89050 (59%)

152180

254 (50%)

509

232 (49%)

471

Education level

 

148679

 

507

 

469

  ≤ 12 years

45439 (31%)

 

120 (24%)

 

106 (23%)

 

  > 12 years

103240 (69%)

 

378 (76%)

 

363 (77%)

 

Nationality

 

151575

 

507

 

469

 Dutch

143040 (94%)

 

468 (92%)

 

433 (92%)

 

 Other

8535 (6%)

 

39 (8%)

 

36 (8%)

 

Ruff Figural Fluency Test (RFFT)c

 

-

    

 Number of unique designs, mean (SD)

  

85.16 (24.37)

485

85.50 (24.18)

471

 Error ratio, median (IQR)

  

0.09 (0.05–0.15)

485

0.09 (0.05–0.15)

471

CogStatec

 

-

    

 Groton Maze Learning (GMLT), median (IQR)

  

52 (41–64)

509

52 (41–64)

471

 Groton Maze Learning– Delayed Recall (GMLR), median (IQR)

  

7 (4–10)

504

7 (4–10)

471

 Detection (DET), mean (SD)

  

2.57 (0.17)

500

2.56 (0.17)

471

 Identification (IDN), mean (SD)

  

2.71 (0.09)

507

2.70 (0.08)

471

 One Back (OBK), mean (SD)

  

1.32 (0.22)

504

1.33 (0.20)

471

 One Card Learning (OCL), mean (SD)

  

0.97 (0.13)

506

0.98 (0.13)

471

Marital status (in a relationship)

 

150255

 

505

 

468

 Yes

128493 (86%)

 

403 (80%)

 

374 (80%)

 

 No

21762 (14%)

 

102 (20%)

 

94 (20%)

 

Smoking status

 

143245

 

500

 

462

 Never smoker

68672 (48%)

 

214 (43%)

 

201 (43%)

 

 Past smoker

45350 (32%)

 

207 (41%)

 

189 (41%)

 

 Current smoker

29223 (20%)

 

79 (16%)

 

72 (16%)

 

Alcohol use

 

136437

 

483

 

451

 No alcohol use

29287 (21%)

 

70 (15%)

 

64 (14%)

 

 Moderate alcohol use

86613 (64%)

 

343 (71%)

 

324 (72%)

 

 Problematic alcohol use

20537 (15%)

 

70 (14%)

 

63 (14%)

 

Physical activityd

 

138516

 

469

 

438

 Yes

67240 (49%)

 

250 (53%)

 

237 (54%)

 

 No

71276 (51%)

 

219 (47%)

 

201 (46%)

 

Number of neurological disorderse

 

150877

 

491

 

457

 No disease

147564 (98%)

 

476 (97%)

 

444 (97%)

 

 1 disease

3228 (2%)

 

15 (3%)

 

13 (3%)

 

 2 diseases

85 (0.1%)

 

0 (0%)

 

0 (0%)

 

Number of cardiovascular disordersf

 

111463

 

404

 

375

 No disease

68921 (62%)

 

235 (58%)

 

218 (58%)

 

 1 disease

33510 (30%)

 

125 (31%)

 

118 (32%)

 

 2 diseases

8437 (8%)

 

40 (10%)

 

35 (9%)

 

  ≥ 3 diseases

595 (1%)

 

4 (2%)

 

4 (1%)

 

Depression (yes)

7538 (6%)

125987

33 (7%)

495

33 (7%)

460

Diabetes (yes)

3882 (3%)

151786

27 (5%)

507

25 (5%)

469

  1. aData available at the moment of data release of the present study; bThe percentage is reported, unless otherwise indicated; cIn the present study no data is available from the total LifeLines adult population; dComplies with the norm of at least thirty minutes of moderately intensive exercise at least 5 days a week; eStroke, multiple sclerosis, epilepsy; fMyocardial infarction, arrhythmia, heart failure, high blood pressure
Back to article page

BMC Psychology

ISSN: 2050-7283

Contact us