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 in 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 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.

Over the five years between 2011 and 2015, there were over 1,000,000 emergency visits (as defined above) among residents of Simcoe Muskoka. The number one cause of visit, by ICD-10 chapter, in Simcoe Muskoka during this time period 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 (16%) and diseases of musculoskeletal system (9%).

The leading causes of emergency visits for Ontario as a whole over this same time period were quite similar to what was observed in Simcoe Muskoka as depicted in figure one below.

Figure One

120306LCoERVisbyArea

When looking at the ISHMT causes 1 of emergency visits in Simcoe Muskoka between 2011 and 2015 (combined), acute upper respiratory illness was the leading cause, accounting for 8% of all visits. Other leading causes were: diseases of the ear and skin infections each accounting for 4% of visits (see figure two).

Figure Two

 160212LCoERVisISHMT_PIE

By Sex

In Simcoe Muskoka between 2011 and 2015, 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 (36%) when compared with females (27.5%). Diseases of respiratory system, and musculoskeletal system diseases were other leading causes of emergency visits for both sexes.

Figure three compares the leading causes of emergency visit, by ICD-10 chapter, for males and females in Simcoe Muskoka between 2011 and 2015 (combined).

Figure Three

120306LCoERVisbySex

The leading cause of emergency visit, according to the ISHMT groupings 1, for males in Simcoe Muskoka between 2011 and 2015 (combined) 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 9% 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 during this time period. Figure four depicts the leading causes 1 of emergency visits for both males and females.

Figure Four
160212LCoERVisISHMT_Male_PIE
160212LCoERVisISHMT_Female_PIE

By Age Group

In Simcoe Muskoka between 2011 and 2015, 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 nearly 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 visits between 2011 and 2015. During this same time period among younger adults (between 20 and 44 years) injuries & poisonings was also the leading cause of emergency visit, accounting for more than one-third of all visits.

Diseases of the injuries & poisonings was also the leading cause of emergency visit for older adults and seniors during this time period, accounting for just under one-quarter of all visits. Table one below provides age-specific leading causes of emergency visit using both ICD-10 chapters and ISHMT groupings 1 for Simcoe Muskoka between 2011 and 2015 (combined).

Table One

Leading Causes of ER Visits, Simcoe Muskoka Residents,
by Age Group, 2011 to 2015 (combined)

AGE
GROUP

# OF ER VISITS

ICD-10
CHAPTER

ISHMT
GROUPING

<1 yr

18,878

Respiratory Diseases - 39%
Infectious or Parasitic Diseases - 16%
Injuries or Poisonings - 12%

Acute Upper Resp./Flu – 25%
Diseases of the Ear - 7%
Diarrhoea/Gastro – 4.5%

1-9 yrs

114,809

Respiratory Diseases - 31%
Injuries or Poisonings - 28%
Diseases of the Ear - 12%

Acute Upper Resp./Flu – 22%
Diseases of the Ear - 12%
Pneumonia – 4%

10-19 yrs

116,307

Injuries or Poisonings - 49%
Respiratory Diseases - 15%
Genitourinary Diseases - 6.5%

Acute Upper Resp./Flu – 11%
Diseases of the Ear - 4%
Skin Infections – 2%

20-44 yrs

306,114

Injuries or Poisonings - 35%
Respiratory Diseases - 14%
Musculoskeletal Diseases - 10%

Acute Upper Resp./Flu – 8%
Back Pain - 4%
Skin Infections – 4%

45-64 yrs

250,984

Injuries or Poisonings - 30%
Musculoskeletal Diseases - 13%
Respiratory Diseases - 12%

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

65-74 yrs

94,374

Injuries or Poisonings - 23.5%
Respiratory Diseases - 13%
Circulatory Diseases - 12%

COPD - 5%
Soft Tissue Disorders - 5%
Complications of Medical Care - 3%

75+ yrs

122,129

Injuries or Poisonings - 23%
Circulatory Diseases - 16%
Respiratory Diseases - 13.5%

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

Data source: Ambulatory Visits & Population Estimates [2011-2015], Ontario Ministry of Health and Long-Term Care, IntelliHEALTH ONTARIO, Date Extracted: [November, 2016].  

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