Patient characteristics by physician type*
| Characteristic | No. (%) of patients | SDiff† | No. (%) of patients | SDiff† | ||
|---|---|---|---|---|---|---|
| PCP psychotherapists n = 95 569 | PCP nonpsychotherapists n = 10 600 008 | Psychiatrist psychotherapists n = 80 028 | Psychiatrist nonpsychotherapists n = 403 929 | |||
| Female sex | 55 893 (58.5) | 5 743 955 (54.2) | 0.09 | 46 075 (57.6) | 217 493 (53.8) | 0.08 |
| Age category, yr | ||||||
| < 18 | 9030 (9.4) | 1 901 785 (17.9) | 0.25 | 8029 (10.0) | 46 044 (11.4) | 0.04 |
| 18–29 | 15 675 (16.4) | 1 523 601 (14.4) | 0.06 | 12 276 (15.3) | 73 738 (18.3) | 0.08 |
| 30–39 | 15 213 (15.9) | 1 344 577 (12.7) | 0.09 | 11 651 (14.6) | 60 516 (15.0) | 0.01 |
| 40–49 | 16 578 (17.3) | 1 470 261 (13.9) | 0.10 | 13 875 (17.3) | 64 414 (15.9) | 0.04 |
| 50–64 | 24 838 (26.0) | 2 385 287 (22.5) | 0.08 | 24 122 (30.1) | 98 124 (24.3) | 0.13 |
| > 64 | 14 235 (14.9) | 1 974 497 (18.6) | 0.10 | 10 075 (12.6) | 61 093 (15.1) | 0.07 |
| Age, yr, mean ± SD | 43.7 ± 19.8 | 42.1 ± 23.1 | 0.07 | 43.8 ± 18.4 | 43.1 ± 20.3 | 0.04 |
| Immigrant | 12 396 (13.0) | 1 643 862 (15.5) | 0.07 | 10 776 (13.5) | 48 013 (11.9) | 0.05 |
| Income quintile | ||||||
| 1 (lowest) | 17 603 (18.4) | 1 903 886 (18.0) | 0.01 | 16 144 (20.2) | 96 729 (23.9) | 0.09 |
| 2 | 18 224 (19.1) | 2 024 154 (19.1) | 0.00 | 14 787 (18.5) | 81 261 (20.1) | 0.04 |
| 3 | 17 667 (18.5) | 2 134 174 (20.1) | 0.04 | 13 970 (17.5) | 74 383 (18.4) | 0.02 |
| 4 | 19 323 (20.2) | 2 331 854 (22.0) | 0.04 | 15 571 (19.5) | 75 913 (18.8) | 0.02 |
| 5 (highest) | 22 197 (23.2) | 2 150 212 (20.3) | 0.07 | 18 930 (23.7) | 72 734 (18.0) | 0.14 |
| Missing | 555 (0.6) | 55 728 (0.5) | 0.01 | 626 (0.8) | 2909 (0.7) | 0.01 |
| LHIN region | ||||||
| High supply | 32 946 (34.5) | 1 882 733 (17.8) | 0.39 | 33 082 (41.3) | 87 269 (21.6) | 0.43 |
| Medium supply | 17 824 (18.7) | 2 203 072 (20.8) | 0.05 | 8448 (10.6) | 95 488 (23.6) | 0.35 |
| Low supply | 44 718 (46.8) | 6 500 401 (61.3) | 0.29 | 38 366 (47.9) | 220 478 (54.6) | 0.13 |
| Missing | 81 (0.1) | 13 802 (0.1) | 0.01 | 132 (0.2) | 694 (0.2) | 0.00 |
| Mental health services need | ||||||
| MHA hospital admission | 4086 (4.3) | 81 199 (0.8) | 0.23 | 6713 (8.4) | 43 902 (10.9) | 0.08 |
| MHA emergency department visit | 5819 (6.1) | 166 951 (1.6) | 0.24 | 9659 (12.1) | 60 503 (15.0) | 0.09 |
| ≥ 2 emergency department visits for substance abuse | 1168 (1.2) | 13 421 (0.1) | 0.13 | 888 (1.1) | 5714 (1.4) | 0.03 |
| Emergency department visit for self-harm | 1149 (1.2) | 26 216 (0.2) | 0.11 | 1784 (2.2) | 10 648 (2.6) | 0.03 |
Note: IQR = interquartile range, LHIN = Local Health Integration Network, MHA = mental health and addictions, PCP = primary care physician, SD = standard deviation, SDiff = standardized difference.
↵* Includes all billing data for psychotherapists, not just psychotherapy data.
↵† A standardized difference of greater than 0.1 is considered clinically significant. (12)