Table 2 Statistical analysis of tongue features [Mean (SD), Median (P25, P75)]
Domain | Index | Non-Advanced NSCLC (n = 109) | Advanced NSCLC (n = 110) | Z value | P value | |
|---|---|---|---|---|---|---|
TB | RGB | R | 160.00(156.00,164.00) | 159.00(152.00,164.25) | -0.916 | 0.36 |
G | 91.07 ± 7.23 | 109.79 ± 7.38 | -1.625 | 0.104 | ||
B | 91.00(86.50,97.00) | 91.00(83.00,97.00)** | -2.74 | 0.006 | ||
HIS | H | 179.27(176.75,182.11) | 178.44(176.58,180.00)* | -2.226 | 0.026 | |
I | 114.00(110.00,118.00) | 112.00(105.00,119.00) | -1.855 | 0.064 | ||
S | 0.21(0.20,0.24) | 0.22(0.20,0.24) | -1.019 | 0.308 | ||
Lab | L | 46.64 ± 2.47 | 45.66 ± 3.31* | -2.27 | 0.023 | |
a | 28.16(26.43,30.09) | 29.28(27.24,31.22)** | -2.753 | 0.006 | ||
b | 12.09(10.18,13.87) | 11.50(9.78,13.24) | -1.242 | 0.214 | ||
YCrCb | Y | 111.96 ± 5.57 | 87.86 ± 9.16* | -2.256 | 0.024 | |
Cr | 158.31(156.44,159.85) | 158.60(156.88,160.58) | -1.505 | 0.132 | ||
Cb | 118.07(116.53,119.60) | 118.58(117.15,119.96) | -1.607 | 0.108 | ||
Texture index | CON | 95.45(81.58,111.56) | 91.72(76.86,109.54) | -0.808 | 0.419 | |
ASM | 0.06(0.06,0.07) | 0.07(0.06,0.07) | -1.145 | 0.252 | ||
ENT | 1.28(1.24,1.31) | 1.27(1.23,1.31) | -0.921 | 0.357 | ||
MEAN | 0.03(0.03,0.03) | 0.03(0.03,0.03) | -0.996 | 0.319 | ||
TC | RGB | R | 143.00(122.00,153.50) | 134.50(117.00,152.00) | -1.675 | 0.094 |
G | 93.00(75.00,103.00) | 86.00(68.75,102.00) | -1.514 | 0.13 | ||
B | 91.00(70.50,102.00) | 86.00(69.00,102.25) | -0.875 | 0.382 | ||
HIS | H | 181.09(178.04,184.97) | 180.00(176.85,183.60)* | -2.074 | 0.038 | |
I | 109.00(89.50,118.00) | 102.50(84.00,118.25) | -1.312 | 0.19 | ||
S | 0.17(0.15,0.20) | 0.18(0.15,0.20) | -0.229 | 0.819 | ||
Lab | L | 44.72(37.20,48.66) | 42.08(34.66,48.36) | -1.475 | 0.14 | |
a | 19.96(18.63,21.06) | 19.92(18.69,21.44) | -0.575 | 0.565 | ||
b | 9.25(7.35,11.44) | 8.47(6.92,10.05)* | -2.202 | 0.028 | ||
YCrCb | Y | 108.30(92.40,116.72) | 102.86(87.07,116.15) | -1.428 | 0.153 | |
Cr | 149.58(148.20,150.80) | 149.18(147.84,150.25) | -1.431 | 0.152 | ||
Cb | 120.00(118.54,121.55) | 120.89(119.43,122.06)** | -2.715 | 0.007 | ||
Texture index | CON | 115.65(84.75,154.56) | 132.24(99.64,169.24) | -1.745 | 0.081 | |
ASM | 0.06(0.05,0.08) | 0.06(0.05,0.07) | -1.194 | 0.232 | ||
ENT | 1.29(1.19,1.36) | 1.31(1.22,1.39) | -1.34 | 0.18 | ||
MEAN | 0.03(0.03,0.04) | 0.04(0.03,0.04) | -1.474 | 0.14 | ||
Area index | perAll | 0.13(0.04,0.23) | 0.14(0.05,0.25) | -0.373 | 0.709 | |
perPart | 0.69(0.51,1.02) | 0.63(0.49,0.84) | -1.379 | 0.168 | ||