Table 1: Demographic information of participants in different cognitive statuses (total sample size: ).

MMSE scoresTotal
28 ≤ MMSE ≤ 3024 ≤ MMSE ≤ 27MMSE ≤ 23

Age, years, 76 ± 9.5, 31683.9 ± 8.3, 9389.1 ± 5.0, 31440<0.001

BMI, 24.6 (22.7–26.5), 31624.0 (22.5–27.1), 9322.7 (21.2–25.9), 314400.096

AS levels, , %023 (7.3%)1 (1.1%)0 (0%)24 (5.5%)<0.001
I228 (72.2%)60 (64.5%)14 (45.2%)302 (68.6%)
II65 (20.6%)32 (34.4%)17 (54.8%)114 (25.9%)

Hs-CRP (mg/L)<0.399 (32.8%)21 (25.3%)10 (38.5%)130 (31.6%)0.128
0.3~1149 (49.3%)36 (43.4%)9 (34.6%)194 (47.2%)
1~343 (14.2%)19 (22.9%)6 (23.1%)68 (16.5%)
≥311 (3.6%)7 (8.4%)1 (3.8%)19 (4.6%)

Comorbidities, , %12 (0.6%)2 (2.2%)0 (0%)4 (0.9%)0.13
25 (1.6%)1 (1.1%)0 (0%)6 (1.4%)
317 (5.4%)1 (1.1%)2 (6.5%)20 (4.5%)
430 (9.5%)4 (4.3%)2 (6.5%)36 (8.2%)
543 (13.6%)10 (10.8%)3 (9.7%)56 (12.7%)
662 (19.6%)18 (19.4%)8 (25.8%)88 (20.0%)
761 (19.3%)24 (25.8%)8 (25.8%)93 (21.1%)
860 (19.0%)11 (11.8%)7 (22.6%)78 (17.7%)
929 (9.2%)17 (18.3%)1 (3.2%)47 (10.7%)
107 (2.2%)5 (5.4%)0 (0%)12 (2.7%)

One-way ANOVA was used to test the differences of age and BMI in different groups.
Pearson Chi-Squared test was used for categorical variables.
Fisher’s Exact Test was used for examining AS levels and comorbidities.
In AS levels, compared to 24 ≤ MMSE ≤ 27, ; compared to MMSE ≤ 23, .