Multiple regression analysis assessing the relationship among pain unpleasantness ratings, respiration rate, and group in MRI session B (n = 75)
| Variable | B | SE B | β | sr2 | Model R2 | F |
|---|---|---|---|---|---|---|
| 0.64 | 30.41* | |||||
| Pre-pain unpleasantness | 0.71 | 0.08 | 0.63* | 0.40 | ||
| Pre-pain respiration rate | −0.02 | 0.06 | −0.03 | 0.0009 | ||
| Post-pain respiration rate | 0.16 | 0.05 | 0.33** | 0.06 | ||
| Group | −0.37 | 0.18 | −0.20*** | 0.02 |
B, unstandardized beta coefficient; SE B, standard error of unstandardized beta coefficient; β, standardized beta coefficient; sr2, semi-partial coefficient squared; pre-pain unpleasantness, pre-manipulation-related pain unpleasantness ratings; pre-pain respiration rate, pre-manipulation respiration rate; post-pain respiration rate, post-manipulation respiration rate.
↵*p < 0.001.
↵**p = 0.001.
↵***p = 0.04.