Table 3 Values represent correlation coefficients (Coef.) for associations of ambient illumination with melatonin measures from three separate analyses. First, Pearson correlations were run with no control for the covariates. Second, partial correlations were run with control for sleep duration and race. Third, partial correlations were run with control for intraocular pressure (IOP) and cup-to-disk ratio (CDR).
From: Daily illumination exposure and melatonin: influence of ophthalmic dysfunction and sleep duration
Relationships Between Illumination and Melatonin | |||||
|---|---|---|---|---|---|
| Â | Â | aMT6s Mesor | aMT6s Phase | ||
| Â | Variable | Coef. | p | Coef. | p |
No control [r] | Light Mesor | 0.07 | 0.73 | 0.31 | 0.09 |
| Â | Light Phase | -0.50 | 0.01 | 0.18 | 0.35 |
Control for sleep and race [r p ] | Light Mesor | 0.19 | 0.35 | 0.28 | 0.16 |
| Â | Light Phase | -0.43 | 0.03 | 0.03 | 0.88 |
Control for IOP and CDR [r p ] | Light Mesor | 0.07 | 0.71 | 0.22 | 0.25 |
| Â | Light Phase | -0.49 | 0.01 | 0.08 | 0.61 |