Table 4 Patient clinical features before and after propensity score matching
Before matching | After matching | |||||
|---|---|---|---|---|---|---|
Variable | PAH (n = 4877) | PABT (n = 849) | P value | PAH (n = 772) | PABT (N = 772) | P value |
Age, no. (%) | 0.293 | 0.410 | ||||
18–49 | 434 (8.9) | 87 (10.2) | 51 (6.6) | 71 (9.2) | ||
50–59 | 1215 (24.9) | 197 (23.2) | 190 (24.6) | 176 (22.8) | ||
60–69 | 1778 (36.5) | 296 (34.9) | 288 (37.3) | 283 (36.7) | ||
≥ 70 | 1450 (29.7) | 269 (31.7) | 243 (31.5) | 242 (31.3) | ||
Sex, no. (%) | 0.022 | 0.074 | ||||
Female | 2563 (52.6) | 410 (48.3) | 391 (50.6) | 394 (51.0) | ||
Male | 2314 (47.4) | 439 (51.7) | 381 (49.4) | 378 (49.0) | ||
Race, no. (%) | 0.104 | 0.590 | ||||
White | 4032 (82.7) | 679 (80.0) | 610 (79.0) | 644 (83.4) | ||
Black | 488 (10.0) | 104 (12.2) | 86 (11.1) | 74 (9.6) | ||
Other | 357 (7.3) | 67 (7.9) | 76 (9.8) | 54 (7.0) | ||
Marital status, no. (%) | 0.310 | 0.283 | ||||
Never married | 603 (12.4) | 106 (12.5) | 110 (14.2) | 90 (11.7) | ||
Married | 3279 (67.2) | 589 (69.4) | 496 (64.2) | 548 (71.0) | ||
Divorced/widowed | 995 (20.4) | 154 (18.1) | 166 (21.5) | 134 (17.4) | ||
Size, no. (%) | < 0.001 | 0.866 | ||||
≤ 2 cm | 662 (13.6) | 54 (6.4) | 45 (5.8) | 50 (6.5) | ||
≤ 4 cm | 3135 (64.3) | 363 (42.8) | 358 (46.4) | 354 (45.9) | ||
> 4 cm | 1080 (22.1) | 432 (50.9) | 369 (47.8) | 368 (47.7) | ||
Differentiation, no. (%) | 0.551 | 0.439 | ||||
Well | 399 (8.2) | 78 (9.2) | 74 (9.6) | 59 (7.6) | ||
Intermediate | 2197 (45.0) | 393 (46.3) | 351 (45.5) | 365 (47.3) | ||
Poor/undifferentiated | 1833 (37.6) | 300 (35.3) | 294 (38.1) | 285 (36.9) | ||
Missing | 448 (9.2) | 78 (9.2) | 53 (6.9) | 63 (8.2) | ||
Lymph node ratio, no. (%) | 0.019 | 0.889 | ||||
1–25% | 2923 (59.9) | 543 (64.0) | 505 (65.4) | 502 (65.0) | ||
26–50% | 1315 (27.0) | 190 (22.4) | 167 (21.6) | 174 (22.5) | ||
> 50% | 639 (13.1) | 116 (13.7) | 100 (13.0) | 96 (12.4) | ||
Number of malignant mass, no. (%) | 0.305 | 0.790 | ||||
One | 4684 (96.0) | 809 (95.3) | 754 (97.7) | 744 (96.4) | ||
More than one | 193 (4.0) | 40 (4.7) | 18 (2.3) | 28 (3.6) | ||