Table 2.
Association of exnovation with specialty and provider characteristics
| Models | Adjusted difference (95% CI) | Risk ratio (95% CI) | ||
|---|---|---|---|---|
| % change in carotid revascularization* | Final No of carotid revascularizations† | Final No of carotid revascularizations† | ||
| Female sex | −9.2 (25.4 to 7.0) | 0.68 (0.59 to 0.78) | 0.70 (0.60 to 0.80) | |
| Clinical trial participation | 24.0 (−1.7 to 49.8) | 1.17 (1.06 to 1.30) | 1.18 (1.06 to 1.30) | |
| Publications | 8.3 (−8.4 to 25.0) | 0.86 (0.73 to 1.02) | 0.87 (0.74 to 1.03) | |
| Experience (years): | ||||
| <12 | 1 (Reference) | 1 (Reference) | 1 (Reference) | |
| 13-24 | −4.3 (−21.8 to 13.3) | 0.99 (0.89 to 1.11) | 0.96 (0.86 to 1.07) | |
| ≥25 | −15.9 (−33.3 to −1.5) | 0.88 (0.78 to 0.98) | 0.86 (0.76 to 0.96) | |
| Group size: | ||||
| 1 provider | 1 (Reference) | 1 (Reference) | 1 (Reference) | |
| 2-19 providers | 9.3 (−0.1 to 18.7) | 1.25 (1.15 to 1.36) | 1.24 (1.14 to 1.36) | |
| ≥20 providers | 11.9 (−0.4 to 23.5) | 1.21 (1.10 to 1.33) | 1.22 (1.11 to 1.34) | |
| % change in total No of procedures‡ | 35.1 (8.4 to 61.8) | 1.04 (1.01 to 1.07) | 1.04 (1.01 to 1.07) | |
| % change in regional prevalence of carotid disease | −21.7 (−70.9 to 27.6) | 0.98 (0.62 to 1.55) | 0.94 (0.59 to 1.49) | |
| Specialty: | ||||
| Vascular surgery | 1 (Reference) | 1 (Reference) | 1 (Reference) | |
| Thoracic surgery | −4.9 (−15.1 to 5.3) | 0.89 (0.83 to 0.95) | 0.91 (0.85 to 0.98) | |
| Cardiology | −49.1 (−73.6 to −24.5) | 0.09 (0.06 to 0.14) | 0.11 (0.07 to 0.18) | |
| General surgery | −28.0 (−36.4 to −19.6) | 0.55 (0.51 to 0.59) | 0.59 (0.55 to 0.63) | |
| Neurosurgery | −18.1 (−39.2 to −0.2) | 0.33 (0.28 to 0.40) | 0.35 (0.29 to 0.42) | |
| Interventional radiology | −45.6 (−67.2 to −24.0) | 0.10 (0.07 to 0.14) | 0.13 (0.10 to 0.18) | |
| Patients with symptoms | 1.003 (1.001 to 1.005) | |||
| Patients aged >80 years | 3.05 (2.75 to 3.39) | |||
*Analyses based on linear regression.
†Analyses based on Poisson regression. Additionally controlled for baseline procedures at start of study.
‡% change in total number of procedures calculated for each physician during study period to control for providers approaching retirement and scaling down their practice.