Modifiable and non-modifiable risk factors for obstetric anal sphincter injury in a Norwegian Region: A case-control study.
Ragnhild Klokk1, Kjersti S Bakken2,3, Trond Markestad4, Mads N Holten-Andersen1,5
1 Department of Pediatrics, Innlandet Hospital Trust, Lillehammer, Norway
2 Women’s Clinic, Innlandet Hospital Trust, Lillehammer, Norway
3 Centre for International Health, University of Bergen, Bergen, Norway
4 Department of Research, Innlandet Hospital Trust, Brumunddal, Norway
5 Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway