Table 5.
Odds Ratio (OR) for early-onset frontotemporal dementia (EOD) and late-onset frontotemporal dementia (LOD) based on linear trend, median (50th), tertiles, and fixed categories of exposure to light at night (LAN) in nW/cm2/sr.
| LAN (nW/cm2/sr) | 50th | EOD |
LOD |
||||
|---|---|---|---|---|---|---|---|
| Cases/controls | OR | (95% CI) | Cases/Controls | OR | (95% CI) | ||
| Linear trend (1-unit increase) | 1.00 | (0.96–1.03) | 1.03 | (0.92–1.15) | |||
| Linear trend (10-unit increase) | 0.98 | (0.68–1.40) | 1.34 | (0.45–3.98) | |||
| LAN-Median | |||||||
| Below the median | 6.7 | 9/26 | 1.00 | – | 0/26 | 1.00 | – |
| Above the median | 37.8 | 10/28 | 1.07 | (0.35–3.28) | 2/28 | – | |
| LAN-Tertiles | |||||||
| 1st tertile | 5.2 | 6/18 | 1.00 | – | 0/18 | – | |
| 2nd tertile | 25.1 | 7/18 | 1.20 | (0.32–4.52) | 2/18 | – | |
| 3rd tertile | 42.1 | 6/18 | 0.95 | (0.23–3.83) | 0/18 | – | |
| LAN-Fixed categories | |||||||
| <10 | 4.6 | 4/15 | 1.00 | – | 0/15 | – | |
| ≥10; <40 | 26.8 | 12/27 | 1.58 | (0.41–6.10) | 2/27 | – | |
| ≥40 | 47.1 | 3/12 | 0.77 | (0.13–4.69) | 0/12 | – | |