Table 1 Descriptive analysis and analysis of differences in the baseline characteristics of 287 patients with PTC
Variable | n(%) | LNM status | Statistic | P value | |
|---|---|---|---|---|---|
No (n = 142) | Yes (n = 145) | ||||
Age | 44.82 ± 11.94 | 48.89 ± 10.63 | 40.83 ± 11.84 | t = 6.06 | < 0.001* |
Tumor diameter | 11.14 ± 7.64 | 8.78 ± 4.04 | 13.45 ± 9.43 | t=-5.43 | < 0.001* |
Sex | χ2 = 4.41 | 0.036* | |||
Female | 217(75.61) | 115(53.00) | 102(47.00) | ||
Male | 70(24.39) | 27(38.57) | 43(61.43) | ||
Composition | - | 0.976 | |||
Mixed cystic and solid | 8(2.79) | 4(50.00) | 4(50.00) | ||
Solid or almost completely solid | 279(97.21) | 138(49.46) | 141(50.54) | ||
Echogenicity | - | 0.496 | |||
Hyperechoic or isoechoic | 10(3.48) | 4(40.00) | 6(60.00) | ||
Hypoechoic | 273(95.12) | 135(49.45) | 138(50.55) | ||
Very hypoechoic | 4(1.39) | 3(75.00) | 1(25.00) | ||
Shape | χ2 = 2.94 | 0.087 | |||
Taller than wide | 113(39.37) | 63(55.75) | 50(44.25) | ||
Wider than tall | 174(60.63) | 79(45.40) | 95(54.60) | ||
Margin | χ2 = 4.27 | 0.118 | |||
Ill-defined | 211(73.52) | 112(53.08) | 99(46.92) | ||
Lobulated or irregular | 40(13.94) | 15(37.50) | 25(62.50) | ||
Extra-thyroidal extension | 36(12.54) | 15(41.67) | 21(58.33) | ||
Echogenic Foci | - | 0.640 | |||
None or large comet-tail artifacts | 172(59.93) | 88(51.16) | 84(48.84) | ||
Macrocalcifications | 31(10.80) | 17(54.84) | 14(45.16) | ||
Peripheral calcifications | 3(1.05) | 1(33.33) | 2(66.67) | ||
Punctate echogenic foci | 81(28.22) | 36(44.44) | 45(55.56) | ||
HT status | χ2 = 1.80 | 0.179 | |||
No | 218(75.96) | 103(47.25) | 115(52.75) | ||
Yes | 69(24.04) | 39(56.52) | 30(43.48) | ||
Number of lesions | χ2 = 6.53 | 0.011* | |||
Single | 181(63.07) | 100(55.25) | 81(44.75) | ||
Multiple | 106(36.93) | 42(39.62) | 64(60.38) | ||
Blood flow type | χ2 = 5.60 | 0.231 | |||
Avascular | 75(26.13) | 36(48.00) | 39(52.00) | ||
Dot-line | 71(24.74) | 36(50.70) | 35(49.30) | ||
Branching | 41(14.29) | 20(48.78) | 21(51.22) | ||
Garland | 33(11.50) | 22(66.67) | 11(33.33) | ||
Rich-disorganized | 67(23.34) | 28(41.79) | 39(58.21) | ||
Adler blood flow grade | χ2 = 2.62 | 0.455 | |||
0 | 94(32.75) | 48(51.06) | 46(48.94) | ||
I | 54(18.82) | 27(50.00) | 27(50.00) | ||
II | 55(19.16) | 31(56.36) | 24(43.64) | ||
III | 84(29.27) | 36(42.86) | 48(57.14) | ||