Table 1

Patient, Physician, and Practice Characteristics Across Panel Size Ranges

CharacteristicPanel Size
All1,200–1,7991,800–2,3992,400–2,9993,000–3,5993,600+
Physician profile
Physicians, No.4,1952,0281,351526168122
Age, median (IQR), y53 (46–59)51 (44–58)54 (47–60)55 (47–60)54 (47–58)52 (46–58)
Male, mean %68.959.974.781.776.889.3
Foreign trained, mean %26.922.727.434.241.139.3
Time since graduation, median (IQR), y27 (20–34)25 (18–33)28 (21–35)28 (22–35)28 (21–33)25 (19–33)
Practice group size, median (IQR), No.16 (7–30)15 (7–30)16 (7–29)18 (7–31)17 (7–36)18 (5–54)
Rurality: RIO index, median (IQR)2 (0–8)2 (0–10)2 (0–8)2 (0–6)2 (0–8)0 (0–3)
Rurality categories, %
 Major urban (RIO <10)76.674.077.381.279.189.1
 Minor urban (RIO 10–45)20.421.820.217.420.910.9
 Rural (RIO >45)3.04.22.51.40.00.0
Patient profile
Patients, No.8,265,9303,014,8062,792,3871,399,485547,305511,947
Proportion virtually rostered, %12.713.611.512.513.013.5
Age, median (IQR)41 (21–56)41 (22–57)41 (21–57)40 (21–56)38 (20–54)37 (20–52)
0 to18 y, %21.52121.121.72323.5
19 to <65 y, %63.963.463.764.364.965.9
≥65 y, %14.615.715.214.112.110.6
Male, %48.346.449.049.649.150.6
Recent immigrants, %10.58.48.711.315.825.0
Rurality: RIO index, median (IQR)2 (0–11)2 (0–14)2 (0–11)2 (0–8)2 (0–8)0 (0–5)
Rurality categories, %
 Major urban (RIO <10)73.570.572.976.076.684.0
 Minor urban (RIO 10–45)23.124.623.922.022.414.7
 Rural (RIO >45)3.44.93.21.01.01.2
Socioeconomic profile by income quintile (%)
 First (lowest)18.016.617.318.722.024.3
 Second19.618.619.420.421.123.0
 Third20.519.920.621.320.921.3
 Fourth21.622.421.821.019.818.4
 Fifth (highest)20.322.520.918.616.213.0
Case mix:a Resource Utilization Bands (%)
 0 (lowest)13.012.513.513.113.013.4
 110.810.510.811.111.211.2
 227.227.027.427.127.827.4
 340.741.240.240.740.440.5
 46.66.96.56.46.36.3
 5 (highest)1.71.81.71.61.41.3
  • IQR = interquartile range; RIO = Rurality Index of Ontario.

  • a The Resource Utilization Bands provide a measure of the health care resource requirements for individuals. The percentage distribution of patients across the 5 Resource Utilization Bands provides a measure of case mix for the population.