Table 3 Odds ratios of not being linked with dosimetry data among the orthopedic surgeons in South Korea
Characteristics | Not linked with the dosimetry (n = 392) Na (%) | Linked with the dosimetry (n = 121) N (%) | OR | 95% CI | ORb | 95% CI | ||
|---|---|---|---|---|---|---|---|---|
Age group (year) | ||||||||
< 40 | 320 (81.6) | 83 (68.6) | 2.34 | 1.28 | 4.28 | 1.72 | 0.89 | 3.33 |
40–49 | 39 (9.9) | 18 (14.9) | 1.31 | 0.60 | 2.89 | 1.41 | 0.63 | 3.16 |
≥ 50 | 33 (8.4) | 20 (16.5) | 1.00 | reference | 1.00 | reference | ||
Type of medical facility | ||||||||
General hospital | 371 (94.6) | 119 (98.3) | 1.00 | reference | 1.00 | reference | ||
Small hospital | 17 (4.3) | 2 (1.6) | 2.72 | 0.62 | 11.97 | 4.76 | 1.05 | 21.51 |
Location of medical facility | ||||||||
Metropolitan | 265 (67.9) | 75 (62.0) | 1.00 | reference | 1.00 | reference | ||
Province | 125 (32.1) | 46 (38.0) | 0.77 | 0.50 | 1.18 | 0.89 | 0.57 | 1.38 |
Level of concern | ||||||||
Low | 88 (23.6) | 31 (26.5) | 1.00 | reference | 1.00 | reference | ||
Medium | 143 (38.3) | 42 (35.9) | 1.20 | 0.70 | 2.05 | 1.09 | 0.62 | 1.93 |
High | 142 (38.1) | 44 (37.6) | 1.14 | 0.67 | 1.93 | 0.95 | 0.53 | 1.67 |
Job specialty | ||||||||
ST | 63 (16.1) | 27 (22.3) | 1.00 | reference | 1.00 | reference | ||
Others | 141 (36.0) | 58 (47.9) | 1.04 | 0.60 | 1.80 | 1.11 | 0.63 | 1.95 |
Residents | 188 (48.0) | 36 (29.8) | 2.24 | 1.26 | 3.98 | 2.10 | 1.11 | 3.95 |
Calendar year began working with fluoroscopy | ||||||||
< 1996 | 23 (5.9) | 16 (13.2) | 1.00 | reference | 1.00 | reference | ||
1996–2000 | 19 (4.8) | 12 (9.9) | 1.10 | 0.42 | 2.89 | 1.10 | 0.31 | 3.88 |
2001–2005 | 25 (6.4) | 8 (6.6) | 2.17 | 0.78 | 6.03 | 2.82 | 0.69 | 11.55 |
2006–2010 | 82 (20.9) | 33 (27.3) | 1.73 | 0.81 | 3.68 | 2.08 | 0.50 | 8.61 |
2011–2015 | 206 (52.6) | 41 (33.9) | 3.50 | 1.70 | 7.19 | 3.13 | 0.72 | 13.60 |
≥ 2016 | 37 (9.4) | 11 (9.1) | 2.34 | 0.93 | 5.92 | 2.20 | 0.44 | 11.03 |
Years working with fluoroscopy | ||||||||
< 5 | 160 (40.8) | 33 (27.3) | 2.70 | 1.60 | 4.57 | 1.85 | 0.74 | 4.64 |
5–9 | 153 (39.0) | 44 (36.4) | 1.94 | 1.18 | 3.19 | 1.59 | 0.75 | 3.37 |
≥ 10 | 79 (20.2) | 44 (36.4) | 1.00 | reference | 1.00 | reference | ||
Proportion time spent working with fluoroscopy | ||||||||
< 25% | 105 (26.8) | 36 (29.8) | 1.00 | reference | 1.00 | reference | ||
25–49% | 117 (29.8) | 44 (36.4) | 0.95 | 0.57 | 1.59 | 0.76 | 0.44 | 1.31 |
50–74% | 120 (30.6) | 32 (26.4) | 1.29 | 0.75 | 2.21 | 1.03 | 0.58 | 1.85 |
75–99% | 40 (10.2) | 9 (7.4) | 1.52 | 0.67 | 3.45 | 1.17 | 0.49 | 2.78 |
100% | 5 (1.3) | 0 (0.0) | – | – | ||||
Proportion of personnel wearing the badges | ||||||||
0% | 291 (74.2) | 48 (39.7) | 2.60 | 0.95 | 7.09 | 2.08 | 0.74 | 5.88 |
1–24% | 50 (12.8) | 29 (24.0) | 0.74 | 0.26 | 2.13 | 0.61 | 0.20 | 1.81 |
25–74% | 24 (6.1) | 30 (24.8) | 0.34 | 0.11 | 1.03 | 0.27 | 0.09 | 0.85 |
75–99% | 13 (3.3) | 8 (6.6) | 0.70 | 0.19 | 2.56 | 0.57 | 0.15 | 2.17 |
100% | 14 (3.6) | 6 (5.0) | 1.00 | reference | 1.00 | reference | ||