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Association between season of birth and Alzheimer’s disease
| Season | Cases (n = 70 719) | Controls (n = 282 862) | OR (95% CI) | p-value |
|---|---|---|---|---|
| Winter | 22 446 (31.7) | 90 978 (32.2) | 1.00 (reference) | 0.13 |
| Spring | 18 343 (25.9) | 73 127 (25.9) | 1.02 (0.99,1.04) | |
| Summer | 18 729 (26.5) | 73 995 (26.2) | 1.03 (1.00,1.05) | |
| Autumn | 11 201 (15.8) | 44 762 (15.8) | 1.02 (0.99,1.04) |
Values are presented as number (%).
OR, odds ratio; CI, confidence interval.
