Table 1 Patient information for the training and validation sets
From: Prediction of subsolid pulmonary nodule growth rate using radiomics
Characteristic | Training cohort | Validation cohort | P value | |
|---|---|---|---|---|
Participants | 600 | 257 | ||
Age(year) | 62.91 ± 14.11 | 63.93 ± 14.05 | 0.332 | |
Gender | 0.397 | |||
Male | 275(45.83%) | 120(46.70%) | 0.817 | |
Female | 325(54.17%) | 137(53.31%) | ||
Density | 0.995 | |||
GGN | 238(39.67%) | 102(39.69%) | ||
PSN | 362(60.33%) | 155(60.31%) | ||
Shape | 0.912 | |||
Round | 157(26.17%) | 70(27.24%) | ||
Oval | 51(8.5%) | 23(8.95%) | ||
Irregular | 392(65.33%) | 164(63.81%) | ||
Location | 0.862 | |||
RU | 223(37.17%) | 96(37.35%) | ||
RM | 61(10.17%) | 24(9.34%) | ||
RL | 94(15.67%) | 34(13.23%) | ||
LU | 150(25.00%) | 70(27.24%) | ||
LL | 72(12.00%) | 33(12.84%) | ||
Lobulation | Present | 446(74.33%) | 188(73.15%) | 0.718 |
Absent | 154(25.67%) | 69(26.84%) | ||
Spiculation | Present | 328(54.67%) | 142(55.25%) | 0.874 |
Absent | 272(45.33%) | 115(44.75%) | ||
Bubble | Present | 60(10.00%) | 35(13.62%) | 0.218 |
Absent | 540(90.00%) | 222(86.38%) | ||
Bronchiole change | Present | 211(35.17%) | 98(38.13%) | 0.407 |
Absent | 389(64.83%) | 159(61.87%) | ||
Vascular change | Present | 129(21.50%) | 51(19.84%) | 0.586 |
Absent | 471(78.50%) | 206(80.16%) | ||
Pleural attachment | Present | 187(31.17%) | 85(33.07%) | 0.583 |
Absent | 413(68.83%) | 172(66.93%) | ||
History of lung cancer | Present | 226(37.67%) | 101(39.30%) | 0.652 |
Absent | 374(62.33%) | 156(60.70%) | ||
Growth rate | Fast-growth nodules | 71(11.83%) | 37(14.40%) | 0.3 |
Slow-growth nodules | 529(88.17%) | 220(85.60%) |