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. 2015 Apr;21(e1):e43-50.
doi: 10.1136/injuryprev-2013-041110. Epub 2014 Jun 18.

Unintentional drowning mortality, by age and body of water: an analysis of 60 countries

Ching-Yih Lin  1 , Yi-Fong Wang  2 , Tsung-Hsueh Lu  3 , Ichiro Kawach  4
Affiliations

Unintentional drowning mortality, by age and body of water: an analysis of 60 countries

Ching-Yih Lin et al. Inj Prev. 2015 Apr.

Abstract

Background: To examine unintentional drowning mortality by age and body of water across 60 countries, to provide a starting point for further in-depth investigations within individual countries.

Methods: The latest available three years of mortality data for each country were extracted from WHO Health Statistics and Information Services (updated at 13 November 2013). We calculated mortality rate of unintentional drowning by age group for each country. For countries using International Classification of Disease 10 (ICD-10) detailed 3 or 4 Character List, we further examined the body of water involved.

Results: A huge variation in age-standardised mortality rate (deaths per 100 000 population) was noted, from 0.12 in Turkey to 9.19 in Guyana. Of the ten countries with the highest age-standardised mortality rate, six (Belarus, Lithuania, Latvia, Russia, Ukraine and Moldova) were in Eastern Europe and two (Kazakhstan and Kyrgyzstan) were in Central Asia. Some countries (Japan, Finland and Greece) had a relatively low rank in mortality rate among children aged 0-4 years, but had a high rank in mortality rate among older adults. On the contrary, South Africa and Colombia had a relatively high rank among children aged 0-4 years, but had a relatively low rank in mortality rate among older adults. With regard to body of water involved, the proportion involving a bathtub was extremely high in Japan (65%) followed by Canada (11%) and the USA (11%). Of the 13 634 drowning deaths involving bathtubs in Japan between 2009 and 2011, 12 038 (88%) were older adults aged 65 years or above. The percentage involving a swimming pool was high in the USA (18%), Australia (13%), and New Zealand (7%). The proportion involving natural water was high in Finland (93%), Panama (87%), and Lithuania (85%).

Conclusions: After considering the completeness of reporting and quality of classifying drowning deaths across countries, we conclude that drowning is a high-priority public health problem in Eastern Europe, Central Asia, Japan (older adults involving bathtubs), and the USA (involving swimming pools).

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Figures

Figure 1
Figure 1
The age-standardised unintentional drowning mortalty rate (deaths per 100 000 population) and 95% CIs in each country.
Figure 2
Figure 2
Unintentional drowning mortalty rate (deaths per 100 000 population) and 95% CIs for children aged 0–4 years in each country.
Figure 3
Figure 3
Unintentional drowning mortalty rate (deaths per 100 000 population) and 95% CIs for children aged 5–14 years in each country.
Figure 4
Figure 4
Unintentional drowning mortalty rate (deaths per 100 000 population) and 95% CIs for young adults aged 15–24 years in each country.
Figure 5
Figure 5
Unintentional drowning mortalty rate (deaths per 100 000 population) and 95% CIs for adults aged 25–44 years in each country.
Figure 6
Figure 6
Unintentional drowning mortalty rate (deaths per 100 000 population) and 95% CIs for middle adults aged 45–64 years in each country.
Figure 7
Figure 7
Unintentional drowning mortalty rate (deaths per 100 000 population) and 95% CIs for older adults aged 65 years and above in each country.
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