Table 1 Baseline characteristics of patients in the pre- and post-intervention periods
Intervention | ||||
|---|---|---|---|---|
Variables | Pre n = 6186 | Post n = 4879 | P-value | |
Age | Mean (±SD) | 41.7 ± 26.2 | 43.4 ± 25.9 | 0.001 |
Gender | Female | 2803 (45.3%) | 2176 (44.6%) | 0.45 |
Guarantor | Self-Pay | 1220 (19.7%) | 1005 (20.6%) | 0.49 |
Private insurance | 4866 (78.7%) | 3792 (77.7%) | ||
Other | 100 (1.6%) | 82 (1.7%) | ||
ESI | 1 | 45 (0.7%) | 21 (0.4%) | <0.0001 |
2 | 438 (7.1%) | 230 (4.7%) | ||
3 | 3936 (63.6%) | 3411 (69.9%) | ||
4 | 1704 (27.5%) | 1189 (24.4%) | ||
5 | 63 (1.0%) | 28 (0.6%) | ||
RAD category | Chest xray | 3041 (49.2%) | 2212 (45.3%) | 0.002 |
Abdomen xray | 164 (2.7%) | 128 (2.6%) | ||
Extremities xray | 2540 (41.1%) | 2168 (44.4%) | ||
Head and Neck xray | 60 (1.0%) | 58 (1.2%) | ||
Spine xray | 381 (6.2%) | 313 (6.4%) | ||
Disposition | Admitted | 1582 (25.6%) | 1304 (26.7%) | 0.17 |
Discharged | 4604 (74.4%) | 3575 (73.3%) | ||
Day of the week | Weekday | 4380 (70.8%) | 3522 (72.2%) | 0.11 |
Weekend | 1806 (29.2%) | 1357 (27.8%) | ||
Radiographer Shift | Day | 2924 (47.3%) | 2528 (51.8%) | <0.0001 |
Evening | 3262 (52.7%) | 2351 (48.2%) | ||
ED characteristics (volume per day) | Mean (±SD) | 133 ± 17 | 137 ± 17 | <0.0001 |