Bone Abstracts (2016) 5 P476 | DOI: 10.1530/boneabs.5.P476

Childhood fractures in northern Norway: a population-based study, Fit Futures

Tore Christoffersen1,2, Anne Winther1,3, Ole Andreas Nilsen1, Luai Awad Ahmed1,4, Anne-Sofie Furberg5 & Nina Emaus1


1Department of Health and Care Sciences, UiT The Arctic University Of Norway, Tromsø, Norway; 2Finnmark Hospital Trust, Alta, Norway; 3Division of Neurosciences, Orthopedics and Rehabilitation Services, University Hospital of North Norway, Tromsø, Norway; 4Institute of Public Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates; 5Department of Community Medicine, UiT The Arctic University of Norway, Tromsø, Norway.


Background: Fractures are common injuries during childhood. Incidence rates and patterns varies, but population-based data are scarce. The aim of this study was to describe a population based sex, age and maturation specific incidence of fractures at different anatomical sites in a representative sample from regions above the Arctic Circle.

Methods: All fractures in the population based convenient cohort Fit Futures, comprising 1038 adolescents mainly born in 1993–1994, were recorded retrospectively from the local hospital in 2015. We collected details on patient age, sex, and fracture site and merged with data from the directed cohort survey. Radiologist confirmed all fractures.

Results: In a period from birth to cohort scanning, the register presented altogether 316 fractures in 253 individuals, 45% in girls and 55% in boys. The overall annual fracture incidence was 164 per 10 000 persons year under the age of 18 and 173 under the age of 14. Fractures peaked in both girls and boys at a sexual maturation stage corresponding with high growth velocity. The most common site of fracture was the forearm followed by phalanges with 25 and 20% of the fractures respectively. Fracture frequencies were highest in April to June with 32% of all fractures.

Conclusions: The overall incidence of fractures in childhood in Northern Norway corresponds with other reports from Scandinavia. The portion of fractures in girls is higher than in other studies. Both genders seems especially vulnerable in growth spurt during puberty.

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