Statistical analysis of output-gene expression changes comparing nocturnal light exposure at CT15 and CT21 and liver-intact versus liver-denervated rats with CT14–15 light exposure.

Data were analyzed by a mixed one-way ANOVA: (Time (2 levels) and Light (2 levels), or (Denervation (2 levels) and Light (2 levels). If significant effects were detected, it was followed by a post-hoc LSD test. The 2 levels of Time, Light and Denervation were: CT15 versus CT21, light-exposure versus no light exposure, and control versus denervated, respectively.