Sleep Disorders / 2018 / Article / Tab 2 / Clinical Study
Effects of Bright Light with Reduced Blue Light on Sleepiness on Rising: A Small Exploratory Study Table 2 Effects of the interventions on the mean scores for Oguri–Shirakawa–Azumi sleep inventory factors I to V. Factor I is “sleepiness on rising,” factor II “initiation and maintenance of sleep,” factor III “frequent dreaming,” factor IV “refreshing,” and factor V “sleep length.” Data are presented as mean ± S.D.
Intervention Day Factor I (n=6) Mean Factor I P vs No light No light 1 43.8 ± 5.4 39.1 ± 7.5 − 2 38.2 ± 8.1 3 37.6 ± 8.3 4 36.6 ± 7.7 50%-cut 5 42.1 ± 9.2 43.1 ± 9.9 0.209 6 42.5 ± 11.5 7 43.0 ± 7.7 8 45.0 ± 12.9 30%-cut 9 51.6 ± 8.7 48.2 ± 8.7 0.003 10 46.6 ± 10.3 11 48.0 ± 8.5 12 46.7 ± 8.5 Intervention Day Factor II (n=6) Mean Factor II No light 1 41.7 ± 10.7 40.8 ± 9.8 2 39.2 ± 6.1 3 44.2 ± 13.3 4 38.1 ± 9.0 50%-cut 5 40.7 ± 5.6 40.5 ± 8.2 6 34.1 ± 7.0 7 42.7 ± 8.6 8 44.5 ± 9.1 30%-cut 9 40.0 ± 10.2 42.8 ± 10.1 10 47.7 ± 9.6 11 44.2 ± 11.1 12 39.2 ± 9.9 Intervention Day Factor III (n=6) Mean Factor III No light 1 50.4 ± 12.6 49.2 ±11.7 2 50.4 ± 12.6 3 51.5 ± 11.6 4 44.3 ± 11.8 50%-cut 5 54.9 ± 8.2 53.8 ± 8.8 6 53.4 ± 12.2 7 56.2 ± 5.5 8 50.7 ± 9.3 30%-cut 9 53.4 ± 8.4 51.3 ± 11.6 10 53.2 ± 9.3 11 49.3 ± 14.8 12 49.3 ± 14.8 Intervention Day Factor IV (n=6) Mean Factor IV No light 1 42.8 ± 8.4 41.6 ± 7.6 2 41.5 ± 6.2 3 40.1 ± 9.7 4 38.8 ± 8.6 50%-cut 5 43.3 ± 10.0 42.5 ± 7.7 6 33.7 ± 7.4 7 45.2 ± 6.2 8 40.1 ± 11.2 30%-cut 9 44.1 ± 6.0 45.1 ± 6.7 10 40.1 ± 6.3 11 48.1 ± 8.1 12 44.1 ± 8.1 Intervention Day Factor V (n=6) Mean Factor V No light 1 42.8 ± 8.4 40.8 ± 7.9 2 38.8 ± 8.6 3 45.2 ± 6.2 4 40.1 ± 6.3 50%-cut 5 41.5 ± 6.2 40.6 ± 9.4 6 43.3 ± 10.0 7 40.1 ± 11.2 8 48.1 ± 8.1 30%-cut 9 40.1 ± 9.7 44.1 ± 7.3 10 33.7 ± 7.4 11 44.1 ± 6.0 12 44.1 ± 8.1