| Prior Imaging (%) n = 334 | p value | Prior US (%) n = 105 | p value | Prior CT (%) n = 143 | p value | Prior X-ray (%) n = 131 | p value | Prior PET (%) n = 37 | p value | Prior MRI (%) n = 16 | p value |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Sex | ||||||||||||
 Male | 45 | 0.161 | 42.3 | 0.964 | 43.9 | 0.706 | 50 | 0.141 | 30.6 | 0.133 | 43.8 | 0.919 |
 Female | 55 |  | 57.7 |  | 56.1 |  | 50 |  | 69.4 |  | 56.3 |  |
Age | ||||||||||||
 18–34 | 24.6 |  < 0.001 | 35.0 | 0.101 | 35.5 | 0.130 | 35.2 | 0.085 | 34.0 | 0.102 | 33.1 | 0.512 |
 35–54 | 47.9 |  | 44.1 |  | 42.5 |  | 44.4 |  | 44.6 |  | 44.9 |  |
 55–65 +  | 28.4 |  | 20.8 |  | 22.0 |  | 20.4 |  | 21.3 |  | 22.0 |  |
Income | ||||||||||||
 Below average | 29 | 0.008 | 39.6 | 0.518 | 24.5 | 0.024 | 31.3 | 0.009 | 29.7 | 0.914 | 25.1 | 0.422 |
 Average | 26.3 |  | 38.8 |  | 28.7 |  | 16.8 |  | 29.7 |  | 18.8 |  |
 Above average | 36.3 |  | 29.3 |  | 36.4 |  | 41.2 |  | 32.4 |  | 43.8 |  |