Table 4.
Mixed-effects logistic regression models for associations between mood, fatigue, and pain and next-survey social activity.
| Outcome (social engagement) and predictor | Odds ratio (95% CI) | P valuea | |||
| Model 1 |
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Sad mood | 1.017 (0.799 to 1.294) | .89 | ||
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Time (hours) | 1.002 (0.934 to 1.074) | .96 | ||
| Model 2 |
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Happy mood | 0.904 (0.713 to 1.147) | .41 | ||
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Time (hours) | 1.007 (0.938 to 1.080) | .85 | ||
| Model 3 |
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Stressb | 0.858 (0.665 to 1.107) | .24 | ||
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Time 3 | 1.091 (0.535 to 2.223) | .81 | ||
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Time 4 | 0.935 (0.456 to 1.917) | .86 | ||
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Time 5 | 0.952 (0.463 to 1.959) | .89 | ||
| Model 4 |
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Fatigueb | 1.064 (0.872 to 1.298) | .54 | ||
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Time 3 | 1.01 (0.501 to 2.037) | .98 | ||
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Time 4 | 0.771 (0.381 to 1.561) | .47 | ||
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Time 5 | 0.854 (0.413 to 1.769) | .67 | ||
| Model 5 |
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Pain | 2.647 (1.092 to 6.412) | .03 | ||
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Time (hours) | 1.107 (0.991 to 1.235) | .07 | ||
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Pain × Time | 0.945 (0.901 to 0.992) | .02 | ||
aItalics indicate P<.05.
bModels for stress and fatigue use time as a categorical variable; coefficient values for Time 2 to Time 5 indicate the change in the outcome variable compared with Time 1.