Table 1.

Patient Characteristics Overall and by Physician Continuity

CharacteristicOverall (N = 1,200,000)Physician ContinuityaP Value
Low (n = 77,870)Moderate (n = 547,680)High (n = 574,450)
Gender, No. (%)
    Female669,046 (55.8)46,757 (60.0)315,585 (57.6)306,704 (53.4)<.001
    Male530,954 (44.2)31,113 (40.0)232,095 (42.4)267,746 (46.6)<.001
Age, median (IQR), y            50 (30-65)          35 (25-50)            45 (25-60)            55 (35-70)<.001
Complexity level,b No. (%)<.001
    1-2732,890 (61.1)54,310 (69.7)353,939 (64.6)324,641 (56.5)
    2-3200,003 (16.7)11,935 (15.3)89,671 (16.4)98,397 (17.1)
    5-9267,107 (22.3)11,625 (14.9)104,070 (19.0)151,412 (26.4)
Geographic zone, No. (%)<.001
    1 (South)94,052 (7.8)3,655 (4.7)35,198 (6.4)55,199 (9.6)
    2 (Calgary and area)468,776 (39.1)33,598 (43.1)227,555 (41.5)207,623 (36.1)
    3 (Central)128,221 (10.7)12,788 (16.4)60,457 (11.0)54,976 (9.6)
    4 (Edmonton)410,881 (34.2)22,812 (29.3)184,383 (33.7)203,686 (35.5)
    5 (North)98,070 (8.2)5,017 (6.4)40,087 (7.3)52,966 (9.2)
Location, No. (%)
    Metro841,715 (70.1)53,855 (69.2)394,632 (72.1)393,228 (68.5)
    Rural211,445 (17.6)13,261 (17.0)90,496 (16.5)107,688 (18.7)
    Urban146,840 (12.2)10,754 (13.8)62,552 (11.4)73,534 (12.8)
Physician continuity,a No. (%)
    Low77,870 (6.5)77,870 (100.0)0 (0.0)0 (0.0)<.001
    Moderate547,680 (45.6)0 (0.0)547,680 (100.0)0 (0.0)<.001
    High574,450 (47.9)0 (0.0)0 (0.0)574,450 (100.0)<.001
GCR, mean (SD), %42 (41)53 (31)41 (40)41 (45)<.001
Clinic continuity,c No. (%)
    None350,180 (29.2)5,944 (7.6)194,120 (35.4)150,116 (26.1)<.001
    NA247,403 (20.6)0 (0.0)0 (0.0)247,403 (43.1)<.001
    Low167,033 (13.9)28,322 (36.4)112,401 (20.5)26,310 (4.6)<.001
    High190,633 (15.9)31,577 (40.6)123,284 (22.5)35,772 (6.2)
    Complete244,751 (20.4)12,027 (15.4)117,875 (21.5)114,849 (20.0)
Total visits/patient in study period, mean (SD)            14.0 (12.7)            13.4 (11.5)            13.7 (12.1)            14.4 (13.3)<.001
Physician patient volume per day,d mean (SD)            29.4 (13.8)            27.8 (12.5)            28.5 (13.5)            30.5 (14.3)<.001
ED visits during study period
    Number/patient, mean (SD)            2.3 (4.5)            2.8 (5.2)            2.4 (4.6)            2.1 (4.4)<.001
    Patients with none, No. (%)462,781 (38.6)25,423 (32.6)200,998 (36.7)236,360 (41.1)<.001
    Number/patient among those with ≥1, mean (SD)            3.7 (5.3)            4.2 (5.9)            3.7 (5.3)            3.6 (5.3)<.001
Hospitalizations during study period
    Number/patient, mean (SD)            0.3 (0.8)            0.3 (0.8)            0.3 (0.8)            0.3 (0.8).02
    Patients with none, No. (%)974,793 (81.2)62,689 (80.5)443,307 (80.9)468,797 (81.6)<.001
  • ED = emergency department; CRG = clinical risk grouper; GCR = group care rate; IQR = interquartile range; KPC = known provider of care; NA = not applicable; UPC = usual provider of care.

  • a Based on KPC index. Low = 0%-40% of visits were to the attached family physician; moderate = 41%-80% of visits; high = 81%-100% of visits.

  • b Based on CGR.

  • c Based on GCR. None = 0% (always went elsewhere if not seeing their FP); NA = always saw their own FP (KPC index of 100% with no opportunity for group care); low = 1%-50%; high = 51%-99%; complete = 100% (always saw one of their FP’s partners if not their own FP).

  • d For the physician associated with the patient.