Table 1 Baseline demographic and tumor characteristics by primary payer statusa
Characteristics | Overall n (%) | High reimbursement rate, n (%) | Low reimbursement rate, n (%) | P |
|---|---|---|---|---|
CCI | ||||
 0 | 490(18.54) | 207(14.59) | 283(23.12) | <.0001 |
 1~ 3 | 2085(78.89) | 1174(82.73) | 911(74.43) |  |
 4~ | 68(2.57) | 38(2.68) | 30(2.45) |  |
Gender | ||||
 male | 1677(63.45) | 939(66.17) | 738(60.29) | 0.0018 |
 female | 966(36.55) | 480(33.83) | 486(39.71) |  |
Age | ||||
  < 40 | 82(3.10) | 33(2.33) | 49(4.00) | <.0001 |
 40~ | 445(16.84) | 192(13.53) | 253(20.67) |  |
 50~ | 1083(40.98) | 600(42.28) | 483(39.46) |  |
 60~ | 1033(39.08) | 594(41.86) | 439(35.87) |  |
Smoking | ||||
 no | 1174(44.42) | 631(44.47) | 543(44.36) | 0.9567 |
 yes | 1469(55.58) | 788(55.53) | 681(55.64) |  |
Family history of NSCLC | ||||
 none | 2494(94.36) | 1324(93.31) | 1170(95.59) | 0.0112 |
 have | 149(5.64) | 95(6.69) | 54(4.41) |  |
primary lesion site | ||||
 left | 1051(39.77) | 560(39.46) | 491(40.11) | 0.9437 |
 right | 1416(53.58) | 764(53.84) | 652(53.27) |  |
 other | 176(6.66) | 95(6.69) | 81(6.62) |  |
Historical stage | ||||
 High differential | 302(11.27) | 189(13.32) | 112(9.15) | <.0001 |
 Moderately differential | 710(26.50) | 412(29.03) | 294(24.02) |  |
 Low differential | 779(29.08) | 371(26.15) | 397(32.43) |  |
 unknown | 868(32.84) | 447(31.50) | 421(34.40) |  |
Histological classification | ||||
 Squamous carcinoma | 956(36.17) | 483(34.04) | 437(38.64) | 0.0063 |
 adenocarcinoma | 1334(50.47) | 759(53.35) | 577(47.14) |  |
 other | 353(13.36) | 179(12.61) | 174(14.22) |  |
Procedure class | ||||
 lobectomy | 1576(59.63) | 876(61.73) | 210(55.56) | 0.0049 |
 wedge resection | 67(2.53) | 45(3.17) | 6(1.59) |  |
 pneumonectomy | 229(8.66) | 104(7.33) | 34(8.99) |  |
 exploratory thoracotomy | 771(29.17) | 394(27.77) | 128(33.86) |  |
Bronchial stump | ||||
 negative | 1696(64.17) | 923(65.05) | 773(63.15) | 0.5386 |
 positive | 43(1.63) | 24(1.69) | 19(1.55) |  |
 unknown | 904(34.20) | 472(33.26) | 432(35.29) |  |
Clinical stages | ||||
 IA | 559(21.15) | 333(23.47) | 226(18.46) | 0.0065 |
 IB | 426(16.12) | 213(15.01) | 213(17.40) |  |
 IIA | 325(12.30) | 183(12.90) | 142(11.60) |  |
 IIB | 124(4.69) | 64(4.51) | 60(4.90) |  |
 IIIA | 607(22.97) | 301(21.21) | 309(25.00) |  |
 IIIB | 147(5.56) | 71(5.00) | 76(6.21) |  |
 IV | 455(17.22) | 254(17.90) | 201(16.42) |  |
Hospital type | ||||
 Specialized | 1480(56.00) | 741(52.22) | 739(60.38) | <.0001 |
 General | 1163(44.00) | 678(47.78) | 485(39.62) |  |
Average per capital income | ||||
 High income | 465(17.59) | 416(29.32) | 49(4.00) | <.0001 |
 Low income | 2178(82.41) | 1003(70.68) | 1175(96.00) |  |