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Indicator Metadata

NameEmergency Department Wait Time for Physician Initial Assessment (90% Spent Less, in Hours)
Short/Other Names

Emergency Department Wait Time for Physician Initial Assessment

DescriptionThis indicator measures the time interval between the earlier of triage date/time or registration date/time and the date/time of physician initial assessment in the emergency department (ED).
Interpretation

The 90th or 50th percentile of this indicator represents the maximum length of time that 90% or 50% of patients waited in the ED for a physician initial assessment.

A small number is desirable for this indicator.

HSP Framework Dimension

Health System Outputs: Access to comprehensive, high-quality health services

Areas of Need

Getting Better

Geographic Coverage

Prince Edward Island, Nova Scotia, Ontario, Manitoba, Saskatchewan, Alberta, British Columbia, Yukon

Reporting Level/Disaggregation

National, Province/Territory, Region, Facility, Corporation, Peer group

Indicator Results

Accessing Indicator Results on Your Health System: In Depth

Identifying Information
NameEmergency Department Wait Time for Physician Initial Assessment (90% Spent Less, in Hours)
Short/Other Names

Emergency Department Wait Time for Physician Initial Assessment

Indicator Description and Calculation
DescriptionThis indicator measures the time interval between the earlier of triage date/time or registration date/time and the date/time of physician initial assessment in the emergency department (ED).
Calculation: Description

The indicator is measured in hours, usually using the 90th percentile and/or 50th percentile, which represents the maximum length of time that 90% and/or 50% of patients stay in the ED until they are initially assessed by a physician.

Unit of analysis: Single ED visit

Calculation: Geographic Assignment

Place of service

Calculation: Type of Measurement

Number - Number of hours, percentile

Calculation: Adjustment Applied

None

Calculation: Method of Adjustment

Not applicable

Denominator
Numerator

Description:
All emergency visits
Inclusions:
Unscheduled emergency visits with a valid and known registration date/time or triage date/time and a valid and known physician assessment date/time

Exclusions:
1. Scheduled emergency visits

2. Unscheduled emergency visits with Visit Disposition 02 (patient registered but left without being seen or triaged) and 03 (patient triaged but left before further assessment)

3. Both registration and triage date/time are unknown, or physician assessment date/time is unknown

Background, Interpretation and Benchmarks
Rationale

Time is crucial to the effectiveness and outcome of patient care, especially for emergency patients. In conjunction with other indicators, this can be used to monitor the time patients spend in the ED in an effort to improve the efficiency and, ultimately, the outcome of patient care.

Multiple factors can influence the indicator results, including triage level, patient population and availability of resources.

Interpretation

The 90th or 50th percentile of this indicator represents the maximum length of time that 90% or 50% of patients waited in the ED for a physician initial assessment.

A small number is desirable for this indicator.

HSP Framework Dimension

Health System Outputs: Access to comprehensive, high-quality health services

Areas of Need

Getting Better

Targets/Benchmarks

Not applicable

References

Not applicable

Availability of Data Sources and Results
Data Sources

NACRS

Available Data Years

Type of Year:
Fiscal
First Available Year:
2012
Last Available Year:
2017

Geographic Coverage

Prince Edward Island, Nova Scotia, Ontario, Manitoba, Saskatchewan, Alberta, British Columbia, Yukon

Reporting Level/Disaggregation

National, Province/Territory, Region, Facility, Corporation, Peer group

Result Updates
Update Frequency

Twice a year

Indicator Results

Web Tool:
Your Health System: In Depth and Your Health System: Insight
URL:
Accessing Indicator Results on Your Health System: In Depth

Updates

Not applicable

Quality Statement
Caveats and Limitations

Not applicable

Trending Issues

Coverage in the National Ambulatory Care Reporting System (NACRS) changes over time as more jurisdictions participate.

For more information on NACRS coverage, please see the NACRS Quick Stats: https://www.cihi.ca/en/quick-stats.

Comments

Depending on the acuity of the case or hospital procedures, triage may occur before registration or vice versa. Therefore, the earlier of these 2 events is used as the starting point for this indicator's calculation.

Indicator results are also available as of 2012 in Your Health System: Insight.