| Region | Estimate | SE | t Value | df | p Value | ci.lb | ci.ub |
|---|---|---|---|---|---|---|---|
| Tropical (4–23°) | −0.0790 | 0.0572 | −1.3812 | 73 | .1714 | −0.1929 | −0.0790 |
| Sub–tropical (26–35°) | −0.0927 | 0.0389 | −2.3800 | 73 | .0199 | −0.1703 | −0.0927 |
| Temperate (36–53°) | −0.0588 | 0.0349 | −1.6857 | 73 | .0961 | −0.1283 | −0.0588 |
| Polar (62–78°) | −0.0310 | 0.0520 | −0.5964 | 73 | .5528 | −0.1346 | −0.0310 |
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