Table 4.
ORs for cognitive impairment (MMSE score <24) according to levels of BMI stratified by age groups
| Predictor variables | Subjects, n | Cognitive impairment, n (prevalence, %) | Unadjusted OR (95% CI) | Adjusteda OR (95% CI) |
|---|---|---|---|---|
| BMI; ≤69 years of age (n = 523) | ||||
| <21.1 | 90 | 8 (8.9) | 0.71 (0.27–1.89) | 0.76 (0.30–2.09) |
| 21.1–23.1 | 105 | 9 (8.6) | 0.73 (0.28–1.89) | 0.70 (0.27–1.83) |
| 23.2–24.6 | 88 | 10 (11.4) | 1 (ref.) | 1 (ref.) |
| 24.7–26.7 | 114 | 8 (7.0) | 0.59 (0.22–1.56) | 0.61 (0.23–1.64) |
| ≥26.8 | 126 | 14 (11.1) | 0.98 (0.41–2.31) | 1.06 (0.44–2.55) |
| BMI; ≥70 years of age (n = 609) | ||||
| <21.1 | 137 | 60 (43.8) | 2.35 (1.41–3.93) | 2.19 (1.27–3.78) |
| 21.1–23.1 | 121 | 36 (29.8) | 1.36 (0.78–2.36) | 1.36 (0.77–2.41) |
| 23.2–24.6 | 139 | 33 (23.7) | 1 (ref.) | 1 (ref.) |
| 24.7–26.7 | 113 | 35 (31.0) | 1.44 (0.83–2.52) | 1.61 (0.90–2.88) |
| ≥26.8 | 99 | 33 (33.3) | 1.62 (0.91–2.85) | 1.67 (0.93–3.02) |
a
Adjusted for age and sex.