Table 3.

Statistical analyses of effects of light on glucose responses during glucose tolerance tests in experiment 2

Intensity	Variable	p for treatment	p for time	p for interaction	p for AUC
5 lx	Glucose	0.383	<0.001	0.078	0.524
20 lx	Glucose	0.362	<0.001	0.015	0.686
50 lx	Glucose	0.010	<0.001	<0.001	0.009
150 lx	Glucose	0.030	<0.001	0.073	0.106

Treatment (intensity), time (sample time) and interaction effects were determined using repeated measures two-way ANOVA

Glucose responses are reported for the IVGTT during four light intensities

The AUC column contains results of paired t test on the net AUC curve. The threshold for significance is p < 0.05