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Change in child mortality patterns after injuries in Sweden: a nationwide 14-year study

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European Journal of Trauma and Emergency Surgery Aims and scope Submit manuscript

Abstract

Introduction

Sweden has one of the world’s lowest child injury mortality rates, but injuries are still the leading cause of death among children. Child injury mortality in the country has been declining, but this decline seems to decrease recently. Our objective was therefore to further examine changes in the mortality of children’s death from injury over time and to assess the contribution of various effects on mortality. The underlying hypothesis for this investigation is that the incidence of lethal injuries in children, still is decreasing and that this may be sex specific.

Patients and methods

We studied all deaths from injury in Sweden under-18-year-olds during the 14 years 1999–2012. We identified those aged under 18 whose underlying cause of death was recorded as International Classification of Diseases, 10th Revision (ICD-10) diagnosis from V01 to X39 in the Swedish cause of death, where all dead citizens are registered.

Results

From the 1 January 1999 to 31 December 2012, 1213 children under the age of 18 died of injuries in Sweden. The incidence declined during this period (r = −0.606, p = 0.02) to 3.3 deaths/100,000 children-years (95 % CI 2.6–4.2). Death from unintentional injury was more common than that after intentional injury (p < 0.0001). There was a reduction in the incidence of unintentional injuries during the study period (r = −0.757, p = 0.03). The most common causes of death were injury to the brain (n = 337, 41 %), followed by drowning (n = 109, 13 %). The number of deaths after intentional injury increased (r = 0.585, p = 0.03) and at the end of the period was 1.5 deaths/100,000 children-years. The most common causes of death after intentional injuries were asphyxia (n = 177, 45 %), followed by injury to the brain (n = 76, 19 %).

Discussion

Mortality patterns in injured children in Sweden have changed from being dominated by unintentional injuries to a more equal distribution between unintentional and intentional injuries as well as between sexes and the overall rate has declined further. These findings are important as they might contribute to the preventive work that is being done to further reduce mortality in injured children.

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Acknowledgments

This work was supported by The Swedish Carnegie Hero Fund.

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Correspondence to D. Bäckström.

Ethics declarations

The study was approved by the Regional Ethics Review Board in Linköping, and by the Swedish social security number/population registry, Swedish registry of cause of death, and the Swedish inpatient hospital registry.

Conflict of interest

The Authors, Denise Bäckström MD, Ingrid Steinvall PhD, and Folke Sjöberg MD, PhD., have no conflict of interest to declare regarding the manuscript “Change in child mortality patterns after injuries in Sweden: a nationwide 14 year study”

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Bäckström, D., Steinvall, I. & Sjöberg, F. Change in child mortality patterns after injuries in Sweden: a nationwide 14-year study. Eur J Trauma Emerg Surg 43, 343–349 (2017). https://doi.org/10.1007/s00068-016-0660-y

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  • DOI: https://doi.org/10.1007/s00068-016-0660-y

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