Table 8.
Patient baseline characteristics after PSM.
| Characteristics | Divorced/separated | Married | P value | Single | Married | P value | Widowed | Married | P value |
|---|---|---|---|---|---|---|---|---|---|
| N = 1297 | N = 1297 | N = 1465 | N = 1465 | N = 740 | N = 740 | ||||
| Sex | 0.723 | 0.797 | 0.957 | ||||||
| Male (%) | 1055(81.3) | 1062(81.9) | 1239(84.6) | 1244(84.9) | 477(64.5) | 478(64.6) | |||
| Female (%) | 242(18.2) | 235(18.1) | 226(15.4) | 221(15.1) | 263(35.5) | 262(35.4) | |||
| Age | 1.000 | 0.645 | 0.952 | ||||||
| < 65(%) | 869(67.0) | 869(67.0) | 1071(73.1) | 1081(73.9) | 185(25.0) | 184(24.9) | |||
| ≥ 65(%) | 428(33.0) | 428(33.0) | 394(26.9) | 383(26.1) | 555(75.0) | 556(75.1) | |||
| Race | 0.969 | 0.387 | 0.976 | ||||||
| White (%) | 1090(84.0) | 1094(84.3) | 1118(76.3) | 1124(76.7) | 620(83.8) | 622(84.1) | |||
| Black (%) | 191(14.7) | 188(14.5) | 325(22.2) | 310(21.2) | 107(14.5) | 106(14.3) | |||
| Other1(%) | 16(1.2) | 15(1.2) | 22(1.5) | 31(2.1) | 13(1.8) | 12(1.6) | |||
| Grade | 0.998 | 0.787 | 0.373 | ||||||
| Grade I (%) | 195(15.0) | 195(15.0) | 205(14.0) | 215(14.7) | 97(13.1) | 114(15.4) | |||
| Grade II (%) | 756(58.3) | 756(58.3) | 896(61.2) | 899(61.4) | 448(60.5) | 446(60.3) | |||
| Grade III/grade IV (%) | 346(26.7) | 347(26.8) | 364(24.8) | 351(24.0) | 195(26.4) | 180(24.3) | |||
| Histological type | 0.892 | 0.892 | 0.510 | ||||||
| Squamous cell carcinoma (%) | 1270(97.9) | 1269(97.8) | 1437(98.1) | 1438(98.2) | 731(98.8) | 728(98.4) | |||
| Other2(%) | 27(2.1) | 28(2.2) | 28(1.9) | 27(1.8) | 9(1.2) | 12(1.6) | |||
| Surgery | 0.903 | 0.879 | 0.060 | ||||||
| No (%) | 815(62.8) | 812(62.6) | 897(61.2) | 901(61.5) | 505(68.2) | 538(72.7) | |||
| Yes (%) | 482(37.2) | 485(37.4) | 568(38.8) | 564(38.5) | 235(31.8) | 202(27.3) | |||
| AJCC stage | 0.998 | 0.846 | 0.861 | ||||||
| I (%) | 331(25.5) | 328(25.3) | 368(25.1) | 388(26.5) | 224(30.3) | 231(31.2) | |||
| II (%) | 207(16.0) | 206(15.9) | 207(14.1) | 202(13.8) | 150(20.3) | 150(20.3) | |||
| III (%) | 270(20.8) | 270(20.8) | 292(19.9) | 281(19.2) | 160(21.6) | 167(22.6) | |||
| IV (%) | 489(37.7) | 493(38.0) | 598(40.8) | 594(40.5) | 206(27.8) | 192(25.9) | |||
| Radiotherapy | 0.929 | 0.621 | 0.853 | ||||||
| Yes (%) | 348(26.8) | 350(27.0) | 413(28.2) | 401(27.4) | 172(23.2) | 169(22.8) | |||
| No/unknown (%) | 949(73.2) | 947(73.0) | 1057(71.8) | 1064(72.6) | 568(76.8) | 571(77.2) | |||
| Chemotherapy | 0.968 | 0.681 | 1.000 | ||||||
| Yes (%) | 569(43.9) | 570(43.9) | 622(42.5) | 611(41.7) | 235(31.8) | 235(31.8) | |||
| No/unknown (%) | 728(56.1) | 727(56.1) | 843(57.5) | 854(58.3) | 505(68.2) | 505(68.2) |
PSM, propensity score matching.