Table 1:

Provincial inputs by surgery type with data source specified*

Ontario summary: input tableBacklog sizeOR time, hr% to ward% to ICUWard LOS, dICU LOS, dNo. of ORs
Data sourceWTIS, CORC, TOTALDAD/NACRSDADDADDADDADSETP
Procedure type§
 Cancer P2–P31537 (486–3427)2.0 (1.2–3.5)54103.0 (1.0–5.3)1.8 (1.0–3.3)818
 Cancer P43615 (2440–4869)1.5 (0.8–3.0)5052.0 (1.0–4.0)1.6 (0.9–3.0)818
 Vascular P2–P3940 (430–1,635)2.1 (1.3–3.2)63183.0 (1.0–7.0)1.8 (1.0–3.8)463
 Vascular P4935 (412–1516)1.7 (1.2–2.8)42132.3 (1.0–5.0)1.3 (1.0–3.0)463
 Transplant243 (22–577)4.9 (3.8–7.9)100657.0 (6.0–11.5)3.0 (1.3–6.5)126
 Cardiac CABG295 (150–440)4.3 (3.7–5.2)100994.1 (3.1–6.0)1.2 (1.0–2.2)131
 Cardiac Valve175 (89–261)4.7 (3.9–5.8)100994.3 (3.1–6.2)1.5 (1.0–3.0)131
 Other P2–P320 400 (15 752–25 098)1.1 (0.6–1.7)2722.0 (1.0–3.0)1.9 (1.0–4.6)842
 Other P4107 873 (95 994–119 917)0.8 (0.3–1.5)2112.0 (1.0–2.0)1.1 (0.9–2.7)842
 Pediatric P2–P33151 (1431–5729)1.2 (0.7–1.8)1952.0 (1.0–4.5)2.1 (1.0–11.6)623
 Pediatric P49200 (7301–11 122)0.8 (0.5–1.3)1411.0 (1.0–2.0)1.0 (0.8–2.0)623
  • Note: CABG = coronary artery bypass graft, CORC = CorHealth Ontario Cardiac Registry, DAD = Discharge Abstract Database, ICU = intensive care unit, IQR = interquartile range, LOS = length of stay, NACRS = National Ambulatory Care Reporting System, OR = operating room, P2–P4 indicates priority level 2 to 4, SETP = Surgical Efficiency Target Program, TOTAL = Trillium Gift of Life Organ and Tissue Allocation System, WTIS = Wait Times Information System.

  • * Regional breakdown can be found in Appendix 1. Percentage of available ORs was modelled as a normal distribution with a mean of 50% and standard deviation of 10%. Turnover time distributions were available from June 2020 from SETP by region. Provincial turnover time across all surgery types was a median of 22 (IQR 12–33) minutes.

  • Backlog size estimates are reported as the mean (95% prediction interval).

  • OR time, ward LOS and ICU LOS are reported as median (IQR) for 2019 data.

  • § Provincial historical 2019 attrition rates were available for cancer P2–P3 (0.1%), cancer P4 (0.2%), vascular P2–P4 (0.3%) and transplant (6.1%).