Description of the collected data
| nsubj (%) Total=331 | nobs (%) Total=633 | |||
|---|---|---|---|---|
| Job title | ||||
| Radiographer, radiography student or intern* | 197 | (60) | 418 | (66) |
| Scientific staff or research student | 101 | (31) | 172 | (27) |
| Clinical staff | 19 | (6) | 21 | (3) |
| Technical staff | 10 | (3) | 17 | (3) |
| Unknown | 4 | (1) | 5 | (1) |
| Gender | ||||
| Female | 188 | (57) | 354 | (56) |
| Male | 139 | (42) | 274 | (43) |
| Unknown | 4 | (1) | 5 | (1) |
| Scanner category† | ||||
| Unexposed | 129 | (39) | 134 | (20) |
| 1.5 T closed bore‡ | 142 | (43) | 259 | (38) |
| 3.0 T closed bore§ | 89 | (27) | 131 | (19) |
| 7.0 T closed bore¶ | 25 | (8) | 31 | (5) |
| Various scanner types up to 1.5 T** | 34 | (10) | 49 | (7) |
| Small-bore animal scanners >4.7 T†† | 34 | (10) | 57 | (8) |
| Unknown | 13 | (4) | 14 | (2) |
| Reported workload level† | ||||
| Low | 135 | (41) | 180 | (28) |
| Medium | 226 | (68) | 366 | (58) |
| High | 72 | (22) | 86 | (14) |
| Unknown | 1 | (0) | 1 | (0) |
| Used disinfectants or solvents during work† | ||||
| Yes | 235 | (71) | 417 | (66) |
| No | 141 | (43) | 210 | (33) |
| Unknown | 5 | (2) | 6 | (1) |
| Consumed alcohol during 24 h prior to shift† | ||||
| Yes | 124 | (38) | 165 | (26) |
| No | 257 | (78) | 438 | (69) |
| Unknown | 22 | (7) | 30 | (5) |
*This group includes 68 observations obtained from 67 CT radiographers and CT radiography interns. The remaining observations are from MRI radiographers, students and interns.
†Due to multiple observations per subject, a subject can appear in more than one category. Therefore, the sum might exceed 100%. This also applies to the number of shifts per scanner category, since within a shift a subject could have worked with more than one type of scanner.
‡Includes all large-bore cylindrical systems of 1.5 Tesla.
§Includes all large-bore cylindrical systems of 3.0 Tesla.
¶Includes all large-bore cylindrical systems of 7.0 Tesla.
**Includes extremity scanners, upright scanners and open (ie, transversal field) scanners up to 1.5 Tesla and large-bore cylindrical systems below 1.5 Tesla.
††Includes small-bore cylindrical animal scanners with field strengths between 4.7 and 11.7 Tesla.
Nsubj, number of subjects; Nobs, number of observations; T, Tesla.