Regional overview showing variances in percentages of endovascular treatments among the conducted multilevel revascularisations from 2001 to 2014+
| Region | Percentage multilevel endovascular revascularisations with 95% CI | p value |
| Average annual national increase endovascular revascularisations | 2.5 (1.9 to 3.2) | <0.01 |
| Western NRHA | Reference group | |
| Central NRHA | 17.5 (9.4 to 25.5) | <0.01 |
| South-Eastern NRHA | 16.3 (9.6 to 23.0) | <0.01 |
| Northern NRHA | 14.1 (5.0 to 23.2) | <0.01 |
Revascularisations=treatment sessions.
Reference group=lowest share.
+ Weighted linear regression (analytical weights) with percentage endovascular revascularisations as dependent variable and average annual increases as explanatory variable.
NRHA, Norwegian Regional Health Authority.