| Dementia | Alzheimer’s disease | Vascular dementia |
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Glucosamine non-users | Glucosamine users | Glucosamine non-users | Glucosamine users | Glucosamine non-users | Glucosamine users |
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No. of events | 5418 | 1413 | 1361 | 429 | 754 | 169 |
Incidence ratea | 0.20 (0.19–0.20) | 0.21 (0.19–0.22) | 0.05 (0.04–0.05) | 0.06 (0.05–0.07) | 0.03 (0.02–0.03) | 0.03 (0.02–0.03) |
Hazard ratios (95% CI) |
Model 1b | 1 (Reference) | 0.84 (0.79–0.89) | 1 (Reference) | 0.96 (0.86–1.07) | 1 (Reference) | 0.71 (0.60–0.84) |
Model 2c | 1 (Reference) | 0.90 (0.84–0.95) | 1 (Reference) | 0.98 (0.88–1.10) | 1 (Reference) | 0.81 (0.69–0.97) |
Model 3d | 1 (Reference) | 0.87 (0.82–0.93) | 1 (Reference) | 0.97 (0.86–1.08) | 1 (Reference) | 0.82 (0.69–0.98) |
- aPer 1000 person-years (95% CI)
- bModel 1: Cox proportional hazards regression adjusted for age (timescale) and sex
- cModel 2: Cox proportional hazards regression adjusted for age (timescale), sex, ethnicity, BMI, education attainment, Townsend deprivation index, smoking status, alcohol consumption, family history of dementia, hypertension, arthritis, total cholesterol, healthy diet, and APOE ε4 carrier.
- dModel 3: Cox proportional hazards regression adjusted for age (timescale), sex, ethnicity, BMI, education attainment, Townsend deprivation index, smoking status, alcohol consumption, family history of dementia, hypertension, arthritis, total cholesterol, healthy diet, APOE ε4 carrier, mineral and vitamin supplements use, and aspirin use