Mental illness at a glance

Release date: August 2017

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Introduction

Figures and tables are provided for the following indicators of mental illness for Durham Region:

Related information

The following websites provide additional local information on indicators of mental illness health system performance and characteristics.

For more detailed, topic-specific reports on mental health and wellness, please go to the Health Statistics in Durham Region homepage.

For more information or if you require this information in an accessible format, please contact Durham Health Connection Line at 905-666-6241 or 1-800-841-2729.

Please contact the author to request a PDF copy of this document.

Indicators of mental illness

Mental illness hospitalizations by sex

As shown in figure 1 below, since 2007, the prevalence rates of mental illness hospitalizations in Durham Region females increased while the rates for males remained stable. Comparatively, the prevalence rates of mental illness hospitalizations in Durham Region females were higher than the rates in Durham Region males. In 2015, 3,723 individuals were hospitalized at least once in the same year due to mental illness. For the same year, as compared to Ontario, the prevalence rate of mental illness hospitalizations in Durham Region females was similar while the rate in Durham Region males was lower.

Figure 1. Age-standardized prevalence of mental illness hospitalizations for Durham Region and Ontario, by sex, annual rate per 1,000 between 2007 and 2015

Line chart showing the trend

Data table for Figure 1

Age-standardized rate of mental illness hospitalizations for Durham Region and Ontario, by sex, annual rate per 1,000 between 2007 and 2015

Calendar
year
Sex Rate per 1,000
2007 Durham Region Males 5.2
2007 Ontario Males 5.3
2007 Durham Region Females 5.6
2007 Ontario Females 5.1
2008 Durham Region Males 5.1
2008 Ontario Males 5.3
2008 Durham Region Females 5.7
2008 Ontario Females 5.2
2009 Durham Region Males 4.9
2009 Ontario Males 5.3
2009 Durham Region Females 5.3
2009 Ontario Females 5.1
2010 Durham Region Males 5.1
2010 Ontario Males 5.5
2010 Durham Region Females 5.7
2010 Ontario Females 5.4
2011 Durham Region Males 5.2
2011 Ontario Males 5.5
2011 Durham Region Females 5.8
2011 Ontario Females 5.5
2012 Durham Region Males 5.1
2012 Ontario Males 5.8
2012 Durham Region Females 5.7
2012 Ontario Females 5.9
2013 Durham Region Males 4.6
2013 Ontario Males 5.9
2013 Durham Region Females 5.0
2013 Ontario Females 6.1
2014 Durham Region Males 4.8
2014 Ontario Males 6.0
2014 Durham Region Females 5.6
2014 Ontario Females 6.1
2015 Durham Region Males 5.2
2015 Ontario Males 5.9
2015 Durham Region Females 6.1
2015 Ontario Females 6.1
Table 1. Count and age-standardized rate of mental illness hospitalizations for Durham Region and Ontario, by sex, annual rate per 1,000 between 2007 and 2015
Statistic Calendar year
2007 2008 2009 2010 2011 2012 2013 2014 2015
Durham Region Females rate 5.6 5.7 5.3 5.7 5.8 5.7 5.0 5.6 6.1
Durham Region Females count 1,593 1,652 1,578 1,747 1,829 1,843 1,665 1,871 2,065
Durham Region Males rate 5.2 5.1 4.9 5.1 5.2 5.1 4.6 4.8 5.2
Durham Region Males count 1,345 1,359 1,333 1,415 1,463 1,508 1,394 1,508 1,658
Ontario Females rate 5.1 5.2 5.1 5.4 5.5 5.9 6.1 6.1 6.1
Ontario Females count 33,300 34,188 34,278 36,406 37,586 41,069 42,971 43,386 43,908
Ontario Males rate 5.3 5.3 5.3 5.5 5.5 5.8 5.9 6.0 5.9
Ontario Males count 31,761 32,486 32,756 34,769 35,168 37,579 38,987 39,725 40,115

Mental illness hospitalizations in youth aged 15 to 19

The prevalence rates of mental illness hospitalizations in youth aged 15 to 19 increased between 2007 and 2015 in Durham Region (see figure 2 below). There was a three-fold increase in the rate for Durham Region females within this age group by 2015. In 2015, Durham Region youth accounted for 13 per cent (478 out of 3,723) of the total number of individuals hospitalized at least once in the same year due to mental illness. The prevalence rates of mental illness hospitalizations in Durham Region females and males were higher than Ontario. Since 2007, the prevalence rates of mental illness hospitalizations in Durham Region females were consistently higher than the rates in Durham Region males.

Figure 2. Age-specific prevalence of mental illness hospitalizations, by sex, in Durham Region and Ontario for individuals 15-19 years, annual rate between 2007 and 2015

Line chart showing the trend

Data table for Figure 2

Age-specific prevalence of mental illness hospitalizations, by sex, in Durham Region and Ontario for individuals 15-19 years, annual rate between 2007 and 2015

Calendar
year
Sex Rate per 1,000
2007 Durham Region Males 5.0
2007 Ontario Males 4.3
2007 Durham Region Females 5.5
2007 Ontario Females 5.3
2008 Durham Region Males 4.8
2008 Ontario Males 4.3
2008 Durham Region Females 5.7
2008 Ontario Females 5.4
2009 Durham Region Males 3.8
2009 Ontario Males 4.3
2009 Durham Region Females 4.7
2009 Ontario Females 5.6
2010 Durham Region Males 4.1
2010 Ontario Males 4.7
2010 Durham Region Females 6.1
2010 Ontario Females 6.2
2011 Durham Region Males 4.8
2011 Ontario Males 5.3
2011 Durham Region Females 7.8
2011 Ontario Females 7.1
2012 Durham Region Males 5.6
2012 Ontario Males 6.0
2012 Durham Region Females 10.0
2012 Ontario Females 9.1
2013 Durham Region Males 5.2
2013 Ontario Males 5.9
2013 Durham Region Females 12.3
2013 Ontario Females 10.4
2014 Durham Region Males 6.1
2014 Ontario Males 6.4
2014 Durham Region Females 14.0
2014 Ontario Females 10.7
2015 Durham Region Males 7.1
2015 Ontario Males 6.3
2015 Durham Region Females 14.3
2015 Ontario Females 10.9
Table 2. Age-specific count and prevalence of mental illness hospitalizations, by sex, in Durham Region and Ontario for individuals 15-19 years, annual rate between 2007 and 2015
Statistic Calendar year
2007 2008 2009 2010 2011 2012 2013 2014 2015
Durham Region Females rate 5.5 5.7 4.7 6.1 7.8 10.0 12.3 14.0 14.3
Durham Region Females count 126 134 111 145 185 234 281 313 313
Durham Region Males rate 5.0 4.8 3.8 4.1 4.8 5.6 5.2 6.1 7.1
Durham Region Males count 118 116 94 102 119 139 127 145 165
Ontario Females rate 5.3 5.4 5.6 6.2 7.1 9.1 10.4 10.7 10.9
Ontario Females count 2,289 2,365 2,438 2,723 3,098 3,930 4,447 4,465 4,472
Ontario Males rate 4.3 4.3 4.3 4.7 5.3 6.0 5.9 6.4 6.3
Ontario Males count 1,914 1,930 1,952 2,153 2,444 2,752 2,645 2,840 2,743

Mental illness hospitalizations in adults 65 and older

Between 2007 and 2015, the prevalence rates of mental illness hospitalizations in adults 65 and older decreased in Durham Region. Adults 65 and older accounted for 22 per cent (809 out of 3,723) of the total number of individuals in Durham Region hospitalized at least once due to mental illness in 2015. In 2015, the prevalence rates of mental illness hospitalizations in Durham Region females and males were lower than Ontario. Between 2007 and 2015, the prevalence rates of mental illness hospitalizations in Durham Region females were higher than the rates in Durham Region males of this age group (see figure 3 below).

Figure 3. Age-specific prevalence of mental illness hospitalizations, by sex, in Durham Region and Ontario for individuals 65 years and older, annual rate between 2007 and 2015

Line chart showing the trend

Data table for Figure 3

Age-specific prevalence of mental illness hospitalizations by sex in Durham Region and Ontario for individuals 65 years and older between 2007 and 2015

Calenadar year Location Rate per 1,000
2007 Durham Region Males 11.5
2007 Ontario Males 8.7
2007 Durham Region Females 11.0
2007 Ontario Females 8.7
2008 Durham Region Males 10.6
2008 Ontario Males 8.8
2008 Durham Region Females 12.2
2008 Ontario Females 8.9
2009 Durham Region Males 9.9
2009 Ontario Males 8.6
2009 Durham Region Females 10.6
2009 Ontario Females 8.9
2010 Durham Region Males 9.8
2010 Ontario Males 9.1
2010 Durham Region Females 11.2
2010 Ontario Females 9.1
2011 Durham Region Males 10.1
2011 Ontario Males 9.1
2011 Durham Region Females 12.8
2011 Ontario Females 9.5
2012 Durham Region Males 9.5
2012 Ontario Males 8.9
2012 Durham Region Females 11.0
2012 Ontario Females 9.6
2013 Durham Region Males 7.2
2013 Ontario Males 9.4
2013 Durham Region Females 6.7
2013 Ontario Females 9.8
2014 Durham Region Males 7.2
2014 Ontario Males 9.3
2014 Durham Region Females 8.5
2014 Ontario Females 9.9
2015 Durham Region Males 8.3
2015 Ontario Males 9.2
2015 Durham Region Females 9.3
2015 Ontario Females 9.5
Table 3. Age-specific count and prevalence of mental illness hospitalizations, by sex, in Durham Region and Ontario for individuals 65 years and older, annual rate between 2007 and 2015
Statistic Calendar year
2007 2008 2009 2010 2011 2012 2013 2014 2015
Durham Region Females rate 11.0 12.2 10.6 11.2 12.8 11.0 6.7 8.5 9.3
Durham Region Females count 389 450 407 445 534 484 312 411 473
Durham Region Males rate 11.5 10.6 9.9 9.8 10.1 9.5 7.2 7.2 8.3
Durham Region Males count 312 300 293 304 330 329 267 279 336
Ontario Females rate 8.7 8.9 8.9 9.1 9.5 9.6 9.8 9.9 9.5
Ontario Females count 8,257 8,681 8,887 9,369 10,049 10,479 11,218 11,637 11,616
Ontario Males rate 8.7 8.8 8.6 9.1 9.1 8.9 9.4 9.3 9.2
Ontario Males count 6,380 6,677 6,695 7,313 7,580 7,781 8,592 8,887 9,099

Data sources

The Ontario Mental Health Reporting System (OMHRS) is an administrative database that provides information about inpatients occupying designated adult mental health hospital beds. This includes general hospitals with designated adult mental health beds, as well as speciality psychiatric hospitals and provincial psychiatric hospitals. The Discharge Abstract Database (DAD) is an administrative database that captures information on acute inpatient hospital care, including day surgery, upon discharge (deaths, sign-outs and transfers). In most cases, DAD collects information on child and adolescent mental health care (approximately two per cent of cases in the OMHRS are individuals under the age of 18).

While OMHRS is an admission-based system and the DAD is a discharge-based system, data from both systems are used to report on mental illness hospitalizations. Both databases submit information to the Canadian Institute for Health Information (CIHI) on behalf of the Ontario Ministry of Health and Long-Term Care (MOHLTC). These rates do not represent the true prevalence of mental illnesses as persons with less severe or undiagnosed mental illnesses are excluded.

The mental illnesses examined in this report were classified according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) and according to the International Classification for Diseases, 10th revision, Canadian Enhancement (ICD-10-CA).

For hospital admissions captured in OMHRS, patients with mental illness were selected using the diagnostic categories of substance disorder, psychotic disorder, mood disorder, anxiety disorder or adjustment disorder as the primary, secondary or the tertiary diagnosis. For hospitalizations captured in DAD, patients with mental illness were selected using ICD-10-CA codes F10-F19, F20-F29, F30-F39, F40-F48, F60-F69 as either the primary reason for the hospital stay or a comorbid condition.

An individual may be hospitalized several times each year or in subsequent years for mental illness. As such, the encrypted health card number, a unique number, was used to count the number of individuals discharged at least once from a hospital or admitted at least once to an adult mental health bed on an annual basis.

Data were analyzed by the residence of the individual, not where the hospital admission or discharge occurred. Ontario residents treated outside of the province were excluded. Data were reported by calendar year, based on discharge or admission year of the hospitalization.

This report acknowledges the contribution of Jasantha Naidoo and her report to the Office of the Medical Officer of Health, Peel Public Health, August 2014 as part of her Master of Public Health practicum placement, entitled Analysis of the Ontario Mental Health Reporting System: Examining its Usefulness to Peel Public Health (unpublished).

Definitions

Age-standardized prevalence of mental illness hospitalizations

The number of individuals with at least one hospitalization (such as being discharged from a general hospital or admitted to a designated acute mental health bed) per 1,000 population for the same year that would have occurred if the population had the same age distribution as the 2011 Canadian population.

Age-specific prevalence of mental illness hospitalizations

The number of individuals with at least one hospitalization (such as being discharged from a general hospital or admitted to a designated acute mental health bed) in a specified age group per 1,000 population in that age group for the same year.