Table 3.
Associations of Biomarkers with Cognitive Impairment in the Beaver Dam Offspring Study
| 10-year Cumulative Incidence of Cognitive Impairment | ||
|---|---|---|
| Baseline Biomarker | Model 1a
HR (95% CI) |
Model 2b
HR (95% CI) |
| Men | 0.86 (0.52, 1.43) | 0.69 (0.40, 1.17) |
| Cadmium ≥0.53 μg/L | 1.55 (0.90, 2.66) | 1.24 (0.59, 2.58) |
| sVCAM-1 ≥635.4 ng/mL | 1.79 (1.10, 2.89) | 1.72 (1.05, 2.82) |
| WBC, per 103/μL | 1.11 (0.98, 1.25) | 1.09 (0.96, 1.23) |
Note. N=2143. Results are based on Cox proportional hazards models. HR: hazard ratio; CI: confidence interval; HbA1C: Hemoglobin A1C; sVCAM-1: soluble vascular cell adhesion molecule-1; WBC: white blood cell count.
Model 1: Includes HbA1C, Cadmium, sVCAM-1, WBC and age and sex.
Model 2: Includes HbA1C, Cadmium, sVCAM-1, WBC and age, sex, education, current smoking, exercise, weekly alcohol consumption, history of head injury and cardiovascular disease.
Due to significant HbA1C by sex interaction, results are presented stratified by sex.