Exhibit 1.
Factors Associated With Knowledge Of Device Costs Of Attending Orthopedic Surgeons At Seven Academic Medical Centers, December 2012 – March 2013
| Univariate analysis | Multivariate analysis | ||||
|---|---|---|---|---|---|
| Variable | Costs correctly estimated | OR | 95% CI | OR | 95% CI |
| Site | |||||
| A | 21.0% | —a | —a | —a | —a |
| B | 24.1 | 1.20 | 0.83, 1.72 | —b | —b |
| C | 19.2 | 0.90 | 0.61, 1.33 | —c | —c |
| D | 19.1 | 0.89 | 0.61, 1.30 | —b | —b |
| E | 23.5 | 1.16 | 0.84, 1.60 | —b | —b |
| F | 17.5 | 0.80 | 0.59, 1.09 | —b | —b |
| G | 23.6 | 1.17 | 0.83, 1.64 | —b | —b |
| Years in practice | |||||
| 10 or fewer | 20.6 | —a | —a | —c | —c |
| 11–24 | 23.2 | 1.16 | 0.95, 1.42 | —b | —b |
| 25 or more | 17.2 | 0.80 | 0.62, 1.04 | —b | —b |
| Prior participation in device cost activities at the institution | |||||
| No | 19.5 | —a | —a | —a | —a |
| Yes | 23.9 | 1.30*** | 1.07, 1.57 | 1.30*** | 1.07, 1.58 |
| Device regularly used | |||||
| No | 18.3 | —a | —a | —a | —a |
| Yes | 26.8 | 1.64**** | 1.36, 1.98 | 1.65**** | 1.36, 2.01 |
| Device cost | |||||
| Low (<$500) | 12.8 | —a | —a | —a | —a |
| Medium ($500–$5,000) | 26.9 | 2.52**** | 1.94, 3.27 | 2.59**** | 1.99, 3.36 |
| High (>$5,000) | 17.9 | 1.49*** | 1.12, 1.96 | 1.61*** | 1.20, 2.15 |
SOURCE Authors’ calculations.
NOTES The seven sites are listed in the text. Specific sites are not identified here to protect respondents’ confidentiality. OR is odds ratio. CI is confidence interval.
a
Reference category.
b
[Please provide].
c
Not [please provide].
***
p < 0.01
****
p < 0.001