Physician and practice characteristics for those who billed incentives in all, some or none of the study years, 2010–2013
| Characteristic | Overall n= 3936 | Did not bill incentives in any year n = 740 | Billed incentives in 1–3 yr n = 571 | Billed incentives in all 4 yr n = 2625 | Standardized difference (did not bill v. billed incentives in all 4 yr) |
|---|---|---|---|---|---|
| Total billings (4-yr average), $, mean ± SD | 228 846.3 ± 128 283.0 | 151 462.6 ± 123 551.6 | 156 760.6 ± 98 024.4 | 266 341.5 ± 118 601.0 | 0.95 |
| No. of patients (4-yr average), mean ± SD | 1854.4 ± 1056.4 | 1742.9 ± 1279.8 | 1849.9 ± 1119.2 | 1886.8 ± 967.3 | 0.13 |
| % of eligible patients for whom incentives billed (4-yr), mean ± SD | 21.3 ± 19.9 | – | 5.7 ± 7.4 | 30.7 ± 17.7 | 2.45 |
| Sex, no. (%) | |||||
| Female | 1417 (36.0) | 246 (33.2) | 263 (46.1) | 908 (34.6) | −0.03 |
| Male | 2519 (64.0) | 494 (66.8) | 308 (53.9) | 1717 (65.4) | |
| Age group, yr, no. (%) | |||||
| < 35 | 158 (4.0) | 25 (3.4) | 49 (8.6) | 84 (3.2) | 0.16 |
| 35–44 | 766 (19.5) | 155 (20.9) | 153 (26.8) | 458 (17.4) | |
| 45–54 | 1279 (32.5) | 243 (32.8) | 141 (24.7) | 895 (34.1) | |
| 55–64 | 1168 (29.7) | 192 (25.9) | 123 (21.5) | 853 (32.5) | |
| ≥ 65 | 565 (14.4) | 125 (16.9) | 105 (18.4) | 335 (12.8) | |
| Health authority, no. (%) | |||||
| Interior Health | 755 (19.2) | 126 (17.0) | 122 (21.4) | 507 (19.3) | 0.17 |
| Fraser Health | 1087 (27.6) | 232 (31.4) | 142 (24.9) | 713 (27.2) | |
| Vancouver Coastal Health | 1033 (26.2) | 199 (26.9) | 159 (27.8) | 675 (25.7) | |
| Vancouver Island Health Authority | 823 (20.9) | 156 (21.1) | 120 (21.0) | 547 (20.8) | |
| Northern Health | 212 (5.4) | 21 (2.8) | 23 (4.0) | 168 (6.4) | |
| Missing | 26 (0.7) | 6 (0.8) | 5 (0.9) | 15 (0.6) | |
Note: SD = standard deviation.