Regional overview showing average annual increase (%) in endovascular treatments among the conducted popliteal to foot revascularizations from 2001 to 2014+
| Region | Percentage popliteal to foot endovascular revascularisations with 95% CI | p value |
| Western NRHA *year | 4.0 (3.0 to 5.0) | <0.01 |
| Northern NRHA *year | 3.7 (2.0 to 5.4) | <0.01 |
| Central NRHA *year | 2.1 (0.8 to 3.3) | <0.01 |
| South Eastern NRHA *year | 1.8 (1.3 to 2.4) | <0.01 |
| Western NRHA (2001) | Reference group | |
| South-Eastern NRHA | 29.0 (18.0 to 40.0) | <0.01 |
| Central NRHA | 21.4 (6.1 to 36.8) | <0.01 |
| Northern NRHA | 8.0 (−10.2 to 26.1) | 0.38 |
Revascularisations=treatment sessions.
Reference value=lowest value.
+ Weighted linear regression (analytical weights) with percentage endovascular revascularisations as dependent variable.
* year=average annual change.
NRHA, Norwegian Regional Health Authority.