Table 4:
Final models of prediction of mRS ≤1 including either FLAIR-2 volume (model 1) or FLAIR-3 volume (model 2)a
| Variables | OR | 95% CI | P Value |
|---|---|---|---|
| Final model including FLAIR-2 volume (model 1) | |||
| FLAIR-2 volume (per 10 cm3 increase) | 0.79 | 0.64–0.97 | .026 |
| Age | |||
| Between 54 and 64 vs <54 years | 0.05 | 0.01–0.32 | .017 |
| Between 64 and 74 vs <54 years | 1.18 | 0.22–6.39 | |
| Older than 74 vs <54 years | 0.09 | 0.01–0.66 | |
| Initial NIHSS score | 0.82 | 0.72–0.93 | .003 |
| Reperfusionb | |||
| Reperfusion ≥90% vs no abnormality | 1.47 | 0.34–6.45 | .005 |
| Reperfusion <90% vs no abnormality | 0.06 | 0.01–0.40 | |
| Final model including FLAIR-3 volume (model 2) | |||
| FLAIR-3 volume (per 10 cm3 increase) | 0.73 | 0.56–0.96 | .023 |
| Age | |||
| Between 54 and 64 vs <54 years | 0.06 | 0.01–0.47 | .025 |
| Between 64 and 74 vs <54 years | 1.54 | 0.28–8.51 | |
| Older than 74 vs <54 years | 0.12 | 0.02–0.81 | |
| Initial NIHSS score | 0.82 | 0.71–0.93 | .003 |
| Reperfusionb | |||
| Reperfusion ≥90% vs no abnormality | 1.32 | 0.31–5.67 | .008 |
| Reperfusion <90% vs no abnormality | 0.06 | 0.01–0.43 |
The Hosmer-Lemeshow test findings were nonsignificant (P = .213 and .969 for models 1 and 2, respectively), indicating a good model fit. The AUC was 0.897 for model 1 and 0.888 for model 2.
If one changed the threshold from 1 to 2, the variable “persistent occlusion” appeared to be strongly related to the clinical outcome (OR, 0.08; 95% CI, 0.01–0.44; P = .004 for model 1; OR, 0.06; 95% CI, 0.01–0.36; P = .002 for model 2)