Table 5.
Number of Active Periods, Percent of Time Lights Were Turned On, Physical Activity, and Light Exposure During Brief Active Periods at Night for the AMD and Control Groups Over a 7-Day Period
| Mean (SD) | ||||
|---|---|---|---|---|
| Control Group (n = 14) | AMD Group (n = 14) | Unadjusted P | Age- and Gender- Adjusted P | |
| Average number of brief active periods per night | 1.1 (0.4) | 1.8 (1.3) | 0.043 | 0.007 |
| Percent of time lights were turned on during brief active perioda | 16.8 (27.4) | 20.5 (29.9) | 0.74 | 0.28 |
| Mean physical activity for brief active period (CPM) | 380.2 (100.0) | 348.9 (107.4) | 0.43 | 0.92 |
| Average light exposure (lux) for brief active periods | 3.1 (5.7) | 5.0 (6.4) | 0.41 | 0.25 |
Univariate GLM models to determine the mean difference between the groups. Bold value indicates a significant difference.
a
Where maximum light exposure during brief active period was greater than 30 lux.