Table 3.
AIC Model Fit for Models Predicting Anxiolytic and Antipsychotic Use
| Variable Set Included in the Model* | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model Rank | PWD Race/Ethnicity | Site | A | B | C | D | E | AIC | ΔAIC | Weight | Rank of Equivalent Model Without Race | Evidence Ratio† |
| Anxiolytics | ||||||||||||
| 1 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 477.85 | 0.00 | 0.58 | 4 | 14.38 |
| 2 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 481.83 | 3.98 | 0.08 | 10 | 6.00 |
| 3 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 483.16 | 5.31 | 0.04 | 21 | 16.97 |
| 21 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 489.32 | 11.32 | <0.01 | NA | NA |
| 110 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 499.74 | 21.89 | <0.01 | 125 | 11.95 |
| Antipsychotics | ||||||||||||
| 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 616.26 | 0.00 | 0.51 | 2 | 3.03 |
| 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 618.48 | 2.22 | 0.17 | - | - |
| 3 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 619.29 | 3.03 | 0.11 | 4 | 3.88 |
| 50 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 632.21 | 16.21 | <0.01 | NA | NA |
| 82 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 636.41 | 20.16 | <0.01 | 67 | 0.33 |
Inclusion in the model is indicated by 1, exclusion is indicated by 0
Set A: PWD variables (cognitive impairment, functional impairment, problem behavior frequency, pain, relationship to the caregiver, sex, and age
Set B: caregiver health variables (self-reported health both current and current compared to six months previous, and depression)
Set C: perceptions of caregiving (caregiving burden, bother assisting with functional impairments, bother handling problem behaviors, confidence handling problem behaviors, caregiving mastery, vigilance, and positive aspects of caregiving)
Set D: non-financial caregiving resources (spiritual and religious coping, social network size, social network satisfaction, negative social interaction, and dementia knowledge
Set E: caregiver socioeconomic status (education, employment, income, and income adequacy)
Evidence ratio comparing model with race to an equivalent model without race