Table 4.
Unadjusted effects of patient predictors on false screening alarms
| Variable | False screening alarm due to shoulder arthroplasty |
OR (95% CI) | P-value* | |
|---|---|---|---|---|
| Yes | No | |||
| No. (%) | 53 (62) | 33 (38) | - | - |
| Sex | 0.60 (0.25–1.49) | 0.27 | ||
| Female | 29 (55) | 22 (67) | ||
| Male (Ref) | 24 (45) | 11 (33) | ||
| Type of shoulder arthroplasty | 1.09 (0.45–2.66) | 0.85 | ||
| Total | 25 (47) | 16 (48) | ||
| Reverse (Ref) | 28 (53) | 17 (52) | ||
| Other metal implants | 5.87 (2.18–15.82) | <0.01 | ||
| Yes | 44 (83) | 15 (45) | ||
| No (Ref) | 9 (17) | 18 (55) | ||
| International flights following shoulder arthroplasty | 1.26 (0.49–3.21) | 0.64 | ||
| Yes | 19 (36) | 9 (27) | ||
| No (Ref) | 34 (64) | 24 (73) | ||
| TSA pre-check use following shoulder arthroplasty | 1.48 (0.61–3.58) | 0.38 | ||
| Yes | 26 (49) | 13 (39) | ||
| No (Ref) | 27 (51) | 20 (61) | ||
| Advised that implant might set off airport alarms | 1.22 (0.45–3.30) | 0.69 | ||
| Yes | 15 (33)† | 9 (29)† | ||
| No (Ref) | 30 (67) | 22 (71) | ||
| Physician note regarding metal implants | 1.64 (0.52–5.17) | 0.40 | ||
| Yes | 12 (23) | 5 (15) | ||
| No (Ref) | 41 (77) | 28 (85) | ||
| Age (yr) | 67.16±8.87 | 69.39±11.68 | 0.89 (0.71–1.12)‡ | 0.32 |
| Body mass index (kg/m2) | 32.14±6.11 | 30.71±6.10 | 1.22 (0.84–1.77)‡ | 0.30 |
Values are presented as number (%) or mean±standard deviation. Frequencies and column percentages are reported to describe the bivariate associations between patient demographic, orthopedic, and travel predictors and false airport screening alarms due to arthroplasty. Predictors were based upon “yes” or “no” responses, rather than total.
OR: odds ratio, CI: confidence interval, Ref: reference.
*
Fisher's exact test P-value, significance defined as less than 0.05;
†
Incomplete data due to lack of survey response;
‡
Per 5-unit increase.