Meta-regression of ipsilateral stroke within 30 days after stenting
| Study level covariates | n | P value | R2 |
| Methodology covariates | |||
| Design of the study | |||
| Multicenter | 4 | 0.03 | 20.58 |
| Single-center | 25 | ||
| Publication year (years) | 29 | 0.40 | 0 |
| Study duration (years) | 28 | 0.26 | 0 |
| Cohort representativity | |||
| Yes | 27 | 0.12 | 0 |
| No | 2 | ||
| Population covariates | |||
| Mean age (years) | 27 | 0.26 | 2.10 |
| Percentage of men (%) | 28 | 0.30 | 1.41 |
| Percentage with arterial hypertension (%) | 23 | 0.86 | 0 |
| Percentage of diabetes (%) | 23 | 0.52 | 0 |
| Percentage of smoking (%) | 21 | 0.62 | 0 |
| Percentage of symptomatic stenosis at baseline (%) | 22 | 0.23 | 10.0 |
| Presence of hostile neck in the study population | |||
| Yes | 24 | 0.07 | 12.37 |
| No | 5 | ||
| Stent design | |||
| Closed-cell | 11 | 0.84 | 0 |
| Closed- and open-cell | 14 | ||
| Use of embolic protection device | |||
| No | 8 | 0.44 | 0 |
| Yes systematically | 13 |