Table 1 Baseline sample characteristics from the Women’s Health Initiative Memory Study.

From: Plasma proteins related to inflammatory diet predict future cognitive impairment

  

Total Sample (n = 1528)

Low EDII (n = 764)

High EDII (n = 764)

Demographics

EDIIa

−1.22 (1.97)

−2.85 (0.98)

0.41 (1.24)

DIIa

1.25 (2.32)

0.64 (2.37)

1.86 (2.11)

Agea

71.30 (3.75)

71.67 (3.72)

70.93 (3.74)

Female

1528 (100.0%)

764 (100.0%)

764 (100.0%)

white

1528 (100.0%)

764 (100.0%)

764 (100.0%)

Region

Northeast

457 (29.9%)

221 (28.9%)

236 (30.9%)

South

329 (21.5%)

181 (23.7%)

148 (19.4%)

Midwesta

356 (23.3%)

152 (19.9%)

204 (26.7%)

West

386 (25.3%)

210 (27.5%)

176 (23.0%)

Treatment Assignment

Placebo

744 (48.7%)

377 (49.3%)

367 (48.0%)

Estrogen

784 (51.3%)

387 (50.7%)

397 (52.0%)

Education

Less than high school

78 (5.1%)

32 (4.2%)

46 (6.0%)

High school or GEDa

312 (20.5%)

128 (16.8%)

184 (24.2%)

Some college

600 (39.4%)

308 (40.4%)

292 (38.4%)

Graduated collegea

534 (35.0%)

295 (38.7%)

239 (31.4%)

APOEε4 Alleles

0 ε4 alleles

894 (58.5%)

441 (57.7%)

453 (59.3%)

1-2 ε4 alleles

634 (41.5%)

323 (42.3%)

311 (40.7%)

Cardiovascular Risk Factors

Hypertension

729 (47.7%)

353 (46.2%)

376 (49.2%)

Diabetes

101 (6.6%)

55 (7.2%)

46 (6.0%)

Obesitya

499 (32.8%)

203 (26.6%)

296 (39.1%)

Kidney Function

eGFR

79.99 (12.82)

80.05 (12.30)

79.92 (13.33)

Follow-Up Time

Years

13.55 (5.20)

13.40 (5.23)

13.69 (5.17)

Cognitive Status (At Final Follow-Up)

Cognitively Unimpaired

716 (46.9%)

359 (47.0%)

357 (46.7%)

Cognitively Impaired

812 (53.1%)

405 (53.0%)

407 (53.3%)

  1. Values are displayed as means (standard deviation) and frequencies (percentages). Median split was used to identify Low/High EDII. We utilized t-tests for continuous variables and χ2 for categorical variables.
  2. DII Dietary Inflammatory Index, EDII Energy Adjusted Dietary Inflammatory Index, eGFR estimated glomerular filtration rate (eGFR)-creatinine.
  3. aDifference between low DII and high DII groups statistically significant (p < 0.05).