TABLE 2.
Model fit statistics
| Outcome | Model | χ 2 | χ 2/df | RMSEA | CFI | TLI | AIC |
|---|---|---|---|---|---|---|---|
| Healthcare utilization | Unconditional | 56.23*** | 11.25 | 0.26 | 0.00 | −0.57 | 1,763.83 |
| Covariates | 58.77** | 1.73 | 0.07 | 0.81 | 0.68 | 1,574.82 | |
| Interactions | 66.25 | 1.32 | 0.05 | 0.89 | 0.82 | 1,520.42 | |
| Asthma control | Unconditional | 159.05*** | 31.80 | 1.00 | 0.00 | 1.00 | 2,364.52 |
| Covariates | 120.97*** | 5.26 | 0.18 | 0.68 | 0.41 | 1,733.55 | |
| Interactions | 134.01*** | 3.72 | 0.15 | 0.68 | 0.49 | 1,535.46 | |
| Symptom-free days | Unconditional | 80.75*** | 16.15 | 0.32 | 0.00 | −1.45 | 3,456.29 |
| Covariates | 130.14*** | 2.36 | 0.11 | 0.72 | 0.61 | 3,225.64 | |
| Interactions | 137.43*** | 2.59 | 0.11 | 0.72 | 0.57 | 2,855.65 | |
| Symptom-free nights | Unconditional | 192.26*** | 13.71 | 0.24 | 0.00 | −0.01 | 3,383.78 |
| Covariates | 189.84*** | 3.25 | 0.14 | 0.56 | 0.32 | 2,421.25 | |
| Interactions | 89.84*** | 2.54 | 0.11 | 0.77 | 0.63 | 2,395.31 |
RMSEA root mean square error of approximation, CFI comparative fit index, TLI Tucker–Lewis fit index, AIC akaike information criteria
**p < .01; ***p < .001