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The investigators will examine the association between preoperative frailty and postoperative outcomes and resource utilization after emergency general surgery.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Emergency General Surgery | All patients having emergency general surgery procedures as defined by Scott et al (JAMA Surgery 2016) |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Frailty | Other | Participants will be defined as frail based on the Johns Hopkins ACG Frailty Defining Diagnoses Indicator, which will be applied to available health administrative data in the 3 years preceding index hospital admission. If no frailty defining diagnoses are present participants will be defined as not frail |
| Measure | Description | Time Frame |
|---|---|---|
| Mortality | Mortality events will be identified from the registered person's database in Ontario from the date of surgery to 365 days after surgery, at which time participants will be censored | 365 days (from date of surgery) |
| Measure | Description | Time Frame |
|---|---|---|
| Hospital length of stay | Number of days in hospital from date of surgery to 365 days after surgery | day of surgery to 365 days after surgery |
| Intensive care unit admission | Presence of a special care unit admission from the Discharge abstract database from the date of surgery to 30 days after surgery |
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Inclusion Criteria:
Exclusion Criteria:
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All adult residents of Ontario with valid provincial health insurance who have an emergency general surgery procedure (large bowel surgery, small bowel surgery, cholecystectomy, control of hemorrhage from duodenal ulcer, lysis of adhesions, appendectomy, laparotomy)
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Ottawa Hospital Research Institute | Ottawa | Ontario | K1Y 4E9 | Canada |
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| Type | Date | Date Unknown |
|---|---|---|
| Release | Sep 26, 2017 | |
| Reset | Jul 13, 2018 |
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| Release Date | Unrelease Date | Unrelease Date Unknown | Reset Date | MCP Release Number |
|---|---|---|---|---|
| Sep 26, 2017 | Jul 13, 2018 |
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| from date of surgery to 30 days after surgery |
| Institutional discharge | Discharge disposition to an institution in the discharge abstract database | Date of surgery to hospital discharge or 365 days after surgery (at which time participants will be censored) |
| Costs | Total costs incurred by the provincial health care system from the day of surgery to 365 days after surgery | day of surgery to 365 days after surgery |