Table 2 Clinical and demographic characteristics—baseline cognitive function and 6-year cognitive change

From: Metabolomics and cognition in African American adults in midlife: the atherosclerosis risk in communities study

Characteristic

Na

Baseline;N=1577;N (%)

Na

Cognitive change;N=1035;N (%)

Male

1577

538 (34.1)

1035

341 (33.0)

Female

 

1039 (65.9)

 

694 (67.0)

Education

1577

 

1035

 

11 Years

 

615 (39.0)

 

364 (35.2)

>11 Years and 16 years

 

432 (27.4)

 

283 (27.3)

>16 Years

 

530 (33.6)

 

388 (37.5)

Current smokers

1575

385 (24.4)

1033

214 (20.7)

Hypertension

1570

810 (51.6)

1028

502 (48.8)

Diabetes

1561

344 (22.0)

1023

209 (20.4)

APOE (at least 1 ɛ4 allele)

1404

592 (42.2)

912

392 (43.0)

APOE (ɛ4/ɛ4)

1404

63 (4.5)

912

47 (5.2)

  

Mean (s.d.)

 

Mean (s.d.)

Age (years)

1577

55.4 (5.6)

1035

55.0 (5.4)

BMI (kg/m2)

1577

30.1 (6.1)

1035

30.2 (6.1)

LDL cholesterol (mmol l−1)

1550

3.5 (1.0)

1021

3.5 (1.0)

Ethanol (g per week)

1573

23.5 (84.6)

1031

21.6 (76.2)

eGFRCKD-EPI (ml min−1 per 1.73m2)

1577

105.1 (17.3)

1035

105.0 (16.7)

Cognitive tests

 Baseline (visit 2)

    

 DWRT (words)

1575

6.2 (1.6)

1034

6.3 (1.6)

 DSST (digit-symbol pairs)

1565

31.4 (13.6)

1030

32.9 (13.3)

 WFT (words)

1570

27.9 (13.3)

1031

29.3 (13.2)

6-Year change (visit 2–visit 4)

 DWRT (words)

---

---

1034

−0.25 (1.72)

 DSST (digit-symbol pairs)

---

---

1018

−2.06 (8.82)

 WFT (words)

---

---

1026

−0.89 (8.41)

  1. Abbreviations: APOE, apolipoprotein E; BMI, body mass index; CKD-EPI, Chronic Kidney Disease Epidemiology Collaboration; DSST, Digit Symbol Substitution Test; DWRT, Delayed Word Recall Test; eGFR, estimated glomerular filtration rate; LDL cholesterol, low-density lipoprotein cholesterol; N, number; WFT, Word Fluency Test.
  2. aNumber of participants with data for clinical and demographic characteristics.