Table 5.
Hierarchical Linear Regression for Predictors of FRQoL in IBD and IBS
| R2adj | β | SE | P | |
|---|---|---|---|---|
| IBD | ||||
| Model 1 | .22 | .0001 | ||
| Symptom Severitya | −.48 | 2.3 | ||
| Model 2 | .26 | .038 | ||
| Symptom Severitya | −.44 | 2.3 | .0001 | |
| Number Current Dietsb | −.18 | .80 | .064 | |
| Grain/carbohydrate Focused Dietc | −.11 | 6.2 | .267 | |
| Model 3 | .27 | .129 | ||
| Symptom Severitya | −.41 | 2.3 | .0001 | |
| Number Current Dietsb | −.15 | .81 | .122 | |
| Grain/carbohydrate Focused Dietc | −.12 | 6.2 | .199 | |
| Anxietyd | −.14 | .34 | .129 | |
| IBS | ||||
| R2adj | β | SE | P | |
| Model 1 | .19 | .0001 | ||
| Symptom Severitya | −.46 | .03 | ||
| Model 2 | .23 | .06 | ||
| Symptom Severitya | −.45 | .03 | .0001 | |
| Dairy Focused Dietc | −.23 | 5.8 | .06 | |
a
Symptom Severity: standardized Z Score of HBI or SCCAI (IBD), IBS-SSS (IBS)
b
Scale: 0=None, 1=Single, 2=Multiple
c
Scale: 0=No, 1=Yes
d
Anxiety: NIH PROMIS Anxiety total score