{"meta":{"project":"ER Waits, Ranked (Open Nshipyard P10)","built":"2026-10-10","source":"Ontario Health, Time Spent in Emergency Departments (drivepublic.hqontario.ca endpoints); data asset NACRS via CIHI","source_url":"https://ontariohealth.ca/system/reporting/performance/time-spent-in-emergency-departments.html","vintage":"2025-08 to 2026-08 (monthly)","n_sites":159,"n_months":13,"indicators":{"PIA":"first_assessment","L":"low_urgency_stay","NAH":"high_urgency_stay","A":"admitted_stay"},"caveats":["As of the December 2025 data refresh, 43 additional sites were added to current and historical reporting; Ontario Health warns data exported after that should not be compared to earlier exports.","Monthly averages only. No visit-level timestamps exist in any open source, so hour-of-day arrival analysis is honestly unanswerable.","Averages, not medians. A few long stays pull the average up."]},"base_month":"2026-02","latest_month":"2026-08","n_hospitals":159,"improved":[{"snum":"4840","from":2.6,"to":2,"delta":-0.6,"name":"Health Sciences North-Laurentian"},{"snum":"4863","from":2.3,"to":1.8,"delta":-0.5,"name":"Quinte Health - Trenton"},{"snum":"4957","from":2.4,"to":1.9,"delta":-0.5,"name":"Temiskaming Hospital"},{"snum":"4895","from":1.4,"to":1,"delta":-0.4,"name":"Sensenbrenner Hospital"},{"snum":"6003","from":2.5,"to":2.1,"delta":-0.4,"name":"Sioux Lookout Meno-Ya-Win Health Centre - Cntr"},{"snum":"4842","from":3,"to":2.7,"delta":-0.3,"name":"Pembroke Regional Hospital Inc."},{"snum":"4855","from":2.6,"to":2.3,"delta":-0.3,"name":"Children's Hospital Of Eastern Ontario"},{"snum":"4892","from":2.1,"to":1.8,"delta":-0.3,"name":"Lakeridge Health-Ajax Site"},{"snum":"4899","from":1.4,"to":1.1,"delta":-0.3,"name":"Manitouwadge General Hospital"},{"snum":"4931","from":3.1,"to":2.8,"delta":-0.3,"name":"Sunnybrook Health Sciences Centre"}],"worsened":[{"snum":"4852","from":1.9,"to":3.8,"delta":1.9,"name":"Ottawa Hospital (The)-General Site"},{"snum":"4825","from":2.9,"to":4.7,"delta":1.8,"name":"Queensway-Carleton Hospital"},{"snum":"4914","from":2.4,"to":3.8,"delta":1.4,"name":"Brockville General Hospital"},{"snum":"4981","from":3,"to":4.3,"delta":1.3,"name":"North Bay Regional Health Centre"},{"snum":"4963","from":2.9,"to":4.2,"delta":1.3,"name":"London Hlth Sciences Ctr-University Hosp"},{"snum":"4959","from":1.7,"to":3,"delta":1.3,"name":"Hawkesbury And District General Hospital"},{"snum":"4871","from":2.3,"to":3.5,"delta":1.2,"name":"WRHN-Midtown"},{"snum":"4909","from":2,"to":3.1,"delta":1.1,"name":"WRHN-Queen's Boulvard"},{"snum":"4867","from":3.3,"to":4.4,"delta":1.1,"name":"Cambridge Memorial Hospital"},{"snum":"4969","from":2,"to":3,"delta":1,"name":"Cornwall Community Hospital"}]}