Table 1.
Demographics of patients with nephrolithiasis before and after the launch of the Image Gently Campaign for a) children and b) adults.
| Pre-Intervention (8/2001–7/2007) | Post-Intervention (8/2007–7/2015) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Overall | No CT | CT | p-value | Overall | No CT | CT | p-value | ||
| Number of Children | 5274 | 2689 | 2576 | 7460 | 3431 | 4029 | |||
| Age (Standard Deviation) | 12.6 (4.5) | 11.1 (5.1) | 14.2 (3.2) | <0.001 | 13.3 (4.3) | 11.5 (5.0) | 14.7 (2.8) | <0.001 | |
| Gender | |||||||||
| Female | 2965 | 1372 (46.3%) | 1593 (53.7%) | <0.001 | 4402 | 1823 (41.4%) | 2579 (58.6%) | <0.001 | |
| Male | 2309 | 1326 (57.4%) | 983 (42.6%) | 3058 | 1608 (52.6%) | 1450 (47.4%) | |||
| Imaging Performed At Index Visit | |||||||||
| Emergency Department | 1962 | 530 (27.0%) | 1432 (73.0%) | <0.001 | 3476 | 951 (27.4%) | 2525 (72.6%) | <0.001 | |
| Outpatient Clinic | 3312 | 2571 (77.6%) | 741(22.4%) | 3984 | 3011 (75.6%) | 973 (24.4%) | |||
| Imaging Performed During Stone Episodea | |||||||||
| Emergency Department | 1962 | 427 (21.8%) | 1535 (78.2%) | <0.001 | 3476 | 801 (23.0%) | 2675 (77.0%) | <0.001 | |
| Outpatient Clinic | 3312 | 2271 (68.5%) | 1041 (31.4%) | 3984 | 2630 (66.0%) | 1354 (34.0%) | |||
| Pre-Intervention (8/2001–7/2007) | Post-Intervention (8/2007–7/2015) | ||||||||
| Overall | No CT | CT | p-value | Overall | No CT | CT | p-value | ||
| Number of Adults | 264793 | 111765 | 153028 | 522927 | 173883 | 349044 | |||
| Age (Standard Deviation) | 47.9 (14.2) | 48.8 (14.3) | 47.2 (14.0) | <0.001 | 53.2 (16.5) | 55.1 (16.6) | 52.3 (16.3) | ||
| Gender | |||||||||
| Female | 110146 | 46733 (42.4%) | 63413 (57.6%) | 0.053 | 229801 | 76762 (33.4%) | 153039 (66.6%) | 0.039 | |
| Male | 154647 | 65032 (42.1%) | 89615 (57.9%) | 293126 | 97121 (33.1%) | 196005 (66.9%) | |||
| Imaging Performed At Index Visit | |||||||||
| Emergency Department | 100820 | 23759 (23.6%) | 77061 (76.4%) | <0.001 | 211787 | 31125 (14.7%) | 180662 (85.3%) | <0.001 | |
| Outpatient Clinic | 163973 | 115024 (70.1%) | 48949 (29.9%) | 311140 | 192069 (61.7%) | 119071 (38.3%) | |||
| Imaging Performed During Stone Episodea | |||||||||
| Emergency Department | 100820 | 18493 (18.3%) | 82327 (81.7%) | >0.001 | 211787 | 22553 (10.6%) | 189234 (89.4%) | <0.001 | |
| Outpatient Clinic | 163973 | 93272 (56.9%) | 70701 (43.1%) | 311140 | 151330 (48.6%) | 159810 (51.4%) | |||
a.
Includes imaging performed during index visit and all subsequent encounters during the stone episode.