Table 1 Two-way ANOVA results for first and last time of daily exposure to 50-lux light intensity.
YearDay of the weekInteraction
First daily 50-lux light exposureF(1, 331) = 18.2P < 0.0001F(1, 331) = 258.1P < 0.0001F(1, 331) = 3.7P = 0.0557
Last daily 50-lux light exposureF(1, 331) = 6.2P = 0.0136F(1, 331) = 111.0P < 0.0001F(1, 331) = 0.01P = 0.92