Table 3 Comparison of IC and nIC values between gender, age, location, thickness and histological types of gastric adenocarcinoma
From: Detection of gastric cancer and its histological type based on iodine concentration in spectral CT
Clinical features | Number of cases | ICAP (100 μg/ml) | ICPP (100 μg/ml) | nICAP | nICPP |
|---|---|---|---|---|---|
Gender | |||||
 Male | 60 | 13.018 (11.511, 15,780) | 20.464 (18.843, 22.570) | 0.125 (0.108, 0.147) | 0.431 (0.398, 0.462) |
 Female | 27 | 12.893 (11.456, 14.385) | 19.480 (18.635, 21.485) | 0.117 (0.105, 0.136) | 0.412 (0.389, 0.443) |
Z value | 0.922 | 1.372 | 1.636 | 1.449 | |
P value | >  0.05 | >  0.05 | >  0.05 | >  0.05 | |
Age | |||||
 Young(≤55 y) | 41 | 13.010 (11.483, 16.675) | 20.460 (18.868, 22.570) | 0.138 (0.108, 0.153) | 0.430 (0.400, 0.455) |
 Older (> 55 y) | 46 | 13.009 (11.450, 14.440) | 19.480 (18.780, 22.000) | 0.119 (0.107, 0.136) | 0.421 (0.389, 0.463) |
Z value | 0.613 | 1.066 | 1.935 | 0.583 | |
P value | >  0.05 | >  0.05 | >  0.05 | >  0.05 | |
Sites | |||||
 Fundus | 29 | 12.900 (11.543, 16.675) | 20.010 (18.742, 22.240) | 0.119 (0.106, 0.147) | 0.423 (0.394, 0.435) |
 Body | 28 | 13.672 (11.465, 15.787) | 21.835 (19.815, 23.040) | 0.140 (0.115, 0.151) | 0.642 (0.404. 0.486) |
 Antrum | 27 | 13.674 (11.930, 15.735) | 20.200 (19.253, 22.108) | 0.127 (0.111,0.141) | 0.430 (0.399, 0.472) |
H value | 0.205 | 4.221 | 1.859 | 4.836 | |
P value | >  0.05 | >  0.05 | >  0.05 | >  0.05 | |
Thickness | |||||
  Small (≤3.1 cm) | 38 | 13.205 (11.890, 15.780) | 20.332 (19.022, 22.105) | 0.128 (0.109, 0.142) | 0.433 (0.393, 0.468) |
  Large (> 3.1 cm) | 49 | 12.780 (11.111, 14.532) | 19.815 (18.783, 22.570) | 0.119 (0.107, 0.147) | 0.417 (0.396, 0.433) |
Z value | 1.083 | 0.706 | 0.103 | 1.272 | |
P value | >  0.05 | >  0.05 | >  0.05 | >  0.05 | |
Differentiation | |||||
 Poorly | 43 | 14.530 (13.168, 15.670) | 21.780 (20.030, 23.348) | 0.141 (0.127, 0.155) | 0.433 (0.411, 0.472) |
 Well-differentiated | 44 | 11.880 (11.240, 13.120) | 18.855 (17.270, 19.800) | 0.106 (0.100, 0.113) | 0.410 (0.391, 0.431) |
Z value | 4.118 | 5.637 | 6.729 | 2.950 | |
P value | < 0.0001 | < 0.0001 | < 0.0001 | =0.0032 | |