Map of Simcoe Muskoka

Leading Causes

Leading Cause of Emergency Visits

Overall
By Sex
By Age Group

Overall

The leading causes of emergency visit used for this page are based on the chapters found in International Statistical Classification of Diseases and Related Health Problems, Tenth Revision (ICD-10) and the International Shortlist for Hospital Morbidity Tabulation (ISHMT) adopted by the World Health Organization (WHO) 1 with modifications discussed and approved by the Leading Cause Group subcommittee of the Core Indicators Working Group, Association of Public Health Epidemiologist in Ontario (APHEO).

Emergency visits are counted at patient exit as recorded in the National Ambulatory Care Reporting System (NACRS). Causes are based on the one main problem diagnosed by a physician during a given emergency visit. Emergency visits due to pregnancy and birth (ICD-10 Chapter 15) were excluded, because these do not represent burden of illness and are captured in the birth outcomes statistics (see Pregnancy and Before). Factors influencing health status & contact with health services (ICD-10 Chapter 21) and provisional codes for research and temporary assignment (ICD-10 Chapter 23) were excluded as they do not represent diseases or conditions.

In 2016, there were nearly 227,000 emergency visits (as defined above) among residents of Simcoe Muskoka. The number one cause of visit, by ICD-10 chapter, in Simcoe Muskoka were injuries & poisonings, which accounted nearly one-third all visits. The other leading causes of emergency visits, by ICD-10 chapter, in Simcoe Muskoka during this time period were: diseases of respiratory system (15%) and diseases of musculoskeletal system (9%).

The leading causes of emergency visits for Ontario as a whole in 2016 were quite similar to what was observed in Simcoe Muskoka.

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When looking at the ISHMT causes 1 of emergency visits in Simcoe Muskoka for 2016, acute upper respiratory illness was the leading cause, accounting for 7% of all visits. Other leading causes include: diseases of the ear, skin infections, back pain and soft tissue disorders, each accounting for 3% of visits.

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By Sex

In Simcoe Muskoka in 2016, the leading cause of emergency visit, by ICD-10 chapter, for both males and females were injuries & poisonings. However, the proportion of emergency visits for injuries & poisonings was higher for males (34%) when compared with females (27%). Diseases of the respiratory system were the second leading cause of emergency visits for both sexes. Diseases of the genitourinary system (urinary and genital organs) were the third leading cause of emergency visits among females; whereas, diseases of the musculoskeletal system were the third leading cause of visits among males.

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The leading cause of emergency visit, according to the ISHMT groupings 1, for males in Simcoe Muskoka in 2016 was acute upper respiratory illness which accounted for 7% of all emergency visits. Diseases of the ear, skin infections, soft tissue disorders, and back pain were also among the leading causes of emergency visits for Simcoe Muskoka males.

The leading cause 1 of emergency visit among Simcoe Muskoka females during this time period was also acute upper respiratory illness, which accounted for 8% of all visits. Diseases of the ear, skin infections, soft tissue disorders, and back pain were also among the leading causes of emergency visits for females in 2016.

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By Age Group

In Simcoe Muskoka in 2016, the leading causes of emergency visit, by ICD-10 chapter, among infants less than one year were: diseases of respiratory system, infectious or parasitic diseases and injuries & poisonings, which accounted for about two-thirds of all visits. During the same time period, among children one to nine years of age, diseases of the respiratory system and injuries & poisonings were the leading causes of emergency visit, accounting for more than half of all visits. The most common form of respiratory illnesses among children under 10 years of age were acute upper respiratory illnesses.

Injuries & poisonings was the leading cause of emergency visit among youth and adolescents (between 10 and 19 years of age) in Simcoe Muskoka, accounting for just under half of all emergency visits in 2016. Injuries & poisonings was also the leading cause of emergency visit among young adults (20-44 years), accounting for one-third of all visits.

Injuries & poisonings was also the leading cause of emergency visit for older adults and seniors in 2016, accounting for about one-quarter of all emergency visits. The table below provides age-specific leading causes of emergency visit using both ICD-10 chapters and ISHMT groupings 1 for Simcoe Muskoka in 2016.

Leading Causes of ER Visits, Simcoe Muskoka Residents,
by Age Group, 2016

AGE
GROUP

# OF ER VISITS

ICD-10
CHAPTER

ISHMT
GROUPING

<1 yr

4,010

Respiratory Diseases - 38%
Infectious or Parasitic Diseases - 18%
Injuries or Poisonings - 12%

Acute Upper Resp./Flu – 26%
Diseases of the Ear - 7%
Diarrhoea/Gastro – 4.5%

1-9 yrs

24,553

Respiratory Diseases - 32%
Injuries or Poisonings - 28%
  Infectious or Parasitic Diseases- 12%

Acute Upper Resp./Flu – 23%
Diseases of the Ear - 11%
Pneumonia – 4%

10-19 yrs

24,139

Injuries or Poisonings - 46%
Respiratory Diseases - 153%
Mental/Behavioural Disorders - 8%

Acute Upper Resp./Flu – 10%
Diseases of the Ear - 3%
Intracranial Infections – 3%

20-44 yrs

69,001

Injuries or Poisonings - 33%
Respiratory Diseases - 12%
Musculoskeletal Diseases - 10%

Acute Upper Resp./Flu – 7%
Back Pain - 4%
Soft Tissue Disorders – 4%

45-64 yrs

55,321

Injuries or Poisonings - 29%
Musculoskeletal Diseases - 12%
Respiratory Diseases - 11%

Back Pain – 5%
Soft Tissue Disorders - 4%
Skin Infections - 4%

65-74 yrs

22,510

Injuries or Poisonings - 24%
Respiratory Diseases - 13%
Circulatory Diseases - 11%

COPD - 5%
Soft Tissue Disorders - 5%
Back Pain - 3%

75+ yrs

27,433

Injuries or Poisonings - 23%
Circulatory Diseases - 15%
  RespiratoryDiseases - 13%

COPD - 5%
Pneumonia – 5%
Skin Infections – 4%

Data source: Ambulatory Visits [2016], Ontario Ministry of Health and Long-Term Care, IntelliHEALTH ONTARIO, Date Extracted: [November, 2017].  .  

References 1. Source:International Shortlist for Hospital Morbidity Tabulation, Eurostat, OECD, & WHO, November 2008. [cited 2010 December 13]. Available from: http://apps.who.int/classifications/apps/icd/implementation/hospitaldischarge. Any single-cause diagnosis beginning with ‘Other’ was grouped together with ‘All Others’ (e.g. (120) Other Injuries).