Research Article
Performance of Orthopaedic Shoulder and Elbow Surgeons on a Biostatistical Knowledge Examination
Table 1
Demographic data and correlation with biostatistical knowledge exam scores.
| | Characteristic | Response | No. (%) | Mean % correct | % (95% CI) | value | Multivariate regression |
| | Gender | Female | 4 (7.3) | 57.5 | (42.3 to 72.5) | 0.573 | <0.001 | | Male | 51 (92.7) | 52.0 | (46.9 to 56.5) | | |
| | Age | 30–39 | 15 (27.3) | 63.5 | (57.0 to 70.5) | <0.001 | <0.001 | | 40–49 | 17 (30.9) | 55.5 | (47.6 to 63.5) | | | | 50–59 | 6 (10.9) | 54.0 | (43.9 to 64.5) | | | | 60–69 | 11 (20.0) | 39.6 | (30.4 to 48.8) | | | | >70 | 6 (10.9) | 35.0 | (24.3 to 45.8) | | |
| | Fellowship completed | Shoulder and elbow | 29 (52.7) | 28.4 | (19.0 to 37.7) | 0.177 | 0.902 | | Sports med | 5 (9.1) | 26.1 | (5.0 to 47.3) | | | | Multiple | 8 (14.5) | 29.6 | (16.1 to 43.2) | | | | Others | 6 (10.9) | 47.5 | (38.5 to 56.5) | | | | Hand and upper extremity | 7 (12.7) | 53.0 | (32.1 to 73.5) | | |
| | Years since medical school | 0–9 | 9 (16.4) | 65.0 | (56.5 to 73.5) | 0.001 | 0.001 | | 10–19 | 20 (36.4) | 57.0 | (49.4 to 64.0) | | | | 20–29 | 8 (14.5) | 54.5 | (45.6 to 63.0) | | | | 30–39 | 12 (21.8) | 42.1 | (32.3 to 52.0) | | | | >40 | 6 (10.9) | 35.0 | (24.3 to 45.8) | | |
| | Years since board exam | Not yet taken | 9 (16.4) | 55.0 | (45.4 to 64.5) | <0.001 | <0.001 | | 1–5 | 6 (10.9) | 68.5 | (61.5 to 75.5) | | | | 6–10 | 8 (14.5) | 66.0 | (54.5 to 78.0) | | | | 11–15 | 11 (20.0) | 52.5 | (43.4 to 61.0) | | | | 16–20 | 2 (3.6) | 60.0 | (40.4 to 79.5) | | | | >20 | 19 (34.5) | 39.0 | (32.6 to 45.3) | | |
| | Degrees | DO | 1 (1.8) | 27.5 | (26.4 to 81.5) | 0.422 | 0.198 | | MD | 36 (65.5) | 34.7 | (27.2 to 42.3) | | | | MD + others | 12 (21.8) | 40.3 | (25.4 to 55.0) | | | | Others | 6 (10.9) | 53.5 | (45.1 to 61.5) | | |
| | Training outside of USA | Yes | 11 (20.0) | 36.8 | (22.7 to 51.0) | 0.95 | 0.676 | | No | 44 (80.0) | 37.4 | (30.4 to 48.8) | | |
| | Average papers published per year | Less than 1 | 16 (29.1) | 48.1 | (33.3 to 52.0) | 0.009 | 0.009 | | 1-2 | 11 (20.0) | 42.8 | (49.4 to 67.5) | | | | 3–5 | 15 (27.3) | 58.5 | (25.1 to 57.5) | | | | 6–8 | 4 (7.3) | 41.3 | (56.5 to 74.5) | | | | 9+ | 9 (16.4) | 65.5 | (40.6 to 55.5) | | |
| | Involvement in peer review process | Yes | 52 (94.5) | 52.5 | (47.6 to 57.5) | 0.583 | 0.583 | | No | 3 (5.5) | 46.7 | (43.4 to 50.0) | | |
| | Involvement of medical education | Yes | 45 (81.8) | 53.0 | (47.8 to 58.0) | 0.471 | 0.471 | | No | 10 (18.2) | 48.5 | (37.6 to 59.5) | | |
| | Receiving NIH funding | Yes | 7 (12.7) | 48.6 | (33.4 to 64.0) | 0.181 | 0.181 | | No | 41 (74.5) | 51.0 | (45.5 to 56.5) | | | | Other funding | 7 (12.7) | 63.5 | (55.5 to 72.0) | | |
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Bold values represent statistically significant results.
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