Table 1. Patient Demographics and Clinical Characteristics Before and After Propensity Score Matching.
| Variable | Total | Treatment Before Matching | Standardized Difference | Treatment After Matching | Standardized Difference | ||
|---|---|---|---|---|---|---|---|
| Radical Cystectomy, No. (%) | Trimodal Therapy, No. (%) | Radical Cystectomy, No. (%) | Trimodal Therapy, No. (%) | ||||
| All patients | 3200 | 2448 (76.5) | 752 (23.5) | 687 (50.0) | 687 (50.0) | ||
| Age group, y | |||||||
| 66-69 | 588 | 498 (20.3) | 90 (12.0) | −0.229 | 84 (12.2) | 90 (13.1) | 0.026 |
| 70-74 | 802 | 674 (27.5) | 128 (17.0) | −0.255 | 139 (20.2) | 127 (18.5) | −0.044 |
| 75-79 | 864 | 675 (27.6) | 189 (25.1) | −0.055 | 186 (27.1) | 185 (26.9) | −0.003 |
| ≥80 | 946 | 601 (24.6) | 345 (45.9) | 0.458 | 278 (40.5) | 285 (41.5) | 0.021 |
| Sex | |||||||
| Male | 2048 | 1516 (61.9) | 532 (70.7) | 0.187 | 462 (67.3) | 475 (69.1) | 0.041 |
| Female | 1152 | 932 (38.1) | 220 (29.3) | −0.187 | 225 (32.8) | 212 (30.9) | −0.041 |
| Race/ethnicity | |||||||
| White | 2802 | 2136 (87.3) | 666 (88.6) | 0.040 | 600 (87.3) | 606 (88.2) | 0.027 |
| Black | 138 | 103 (4.2) | 35 (4.7) | 0.022 | 31 (4.5) | 32 (4.7) | 0.007 |
| Hispanic | 109 | 88 (3.6) | 21 (2.8) | −0.046 | 30 (4.4) | 21 (3.1) | −0.069 |
| Other | 151 | 121 (4.9) | 30 (4.0) | −0.046 | 26 (3.8) | 28 (4.1) | 0.015 |
| Marital status | |||||||
| Single | 441 | 341 (13.9) | 100 (13.3) | −0.018 | 93 (13.5) | 94 (13.7) | 0.004 |
| Married | 1920 | 1501 (61.3) | 419 (55.7) | −0.114 | 384 (55.9) | 396 (57.6) | 0.035 |
| Unknown | 839 | 606 (24.8) | 233 (31.0) | 0.139 | 210 (30.6) | 197 (28.7) | −0.042 |
| Census region | |||||||
| West | 1317 | 1009 (41.2) | 308 (41.0) | −0.005 | 271 (39.5) | 280 (40.8) | 0.027 |
| Northeast | 727 | 558 (22.8) | 169 (22.5) | −0.008 | 165 (24.0) | 154 (22.4) | −0.038 |
| Midwest | 373 | 276 (11.3) | 97 (12.9) | 0.050 | 79 (11.5) | 85 (12.4) | 0.027 |
| South | 783 | 605 (24.7) | 178 (23.7) | −0.024 | 172 (25.0) | 168 (24.5) | −0.014 |
| Median annual household income, USD | |||||||
| ≤42 992 | 706 | 530 (21.7) | 176 (23.4) | 0.042 | 147 (21.4) | 157 (22.9) | 0.035 |
| 42 993-56 188 | 802 | 626 (25.6) | 176 (23.4) | −0.050 | 161 (23.4) | 164 (23.9) | 0.010 |
| 56 189-73 827 | 825 | 608 (24.8) | 217 (28.9) | 0.091 | 201 (29.3) | 194 (28.2) | −0.023 |
| ≥73 828 | 867 | 684 (27.9) | 183 (24.3) | −0.082 | 178 (25.9) | 172 (25.0) | −0.020 |
| Educational level, %a | |||||||
| ≤20.58 | 880 | 681 (27.8) | 199 (26.5) | −0.031 | 188 (27.4) | 181 (26.4) | −0.023 |
| 20.59-27.36 | 796 | 608 (24.8) | 188 (25.0) | 0.004 | 173 (25.2) | 174 (25.3) | 0.003 |
| 27.37-34.83 | 742 | 546 (22.3) | 196 (26.1) | 0.088 | 179 (26.1) | 174 (25.3) | −0.017 |
| ≥34.84 | 782 | 613 (25.0) | 169 (22.5) | −0.060 | 147 (21.4) | 158 (23.0) | 0.039 |
| Comorbidity, No. | |||||||
| 0 | 1739 | 1385 (56.6) | 354 (47.1) | −0.191 | 328 (47.7) | 339 (49.3) | 0.032 |
| 1 | 852 | 646 (26.4) | 206 (27.4) | 0.023 | 184 (26.8) | 188 (27.4) | 0.013 |
| 2 | 344 | 240 (9.8) | 104 (13.8) | 0.125 | 87 (12.7) | 85 (12.4) | −0.009 |
| ≥3 | 265 | 177 (7.2) | 88 (11.7) | 0.153 | 88 (12.8 | 75 (10.9) | −0.059 |
| Cancer stage | |||||||
| II | 1498 | 966 (39.5) | 532 (70.7) | 0.663 | 470 (68.4) | 468 (68.1) | −0.006 |
| III | 857 | 761 (31.1) | 96 (12.8) | −0.454 | 98 (14.3) | 96 (14.0) | −0.008 |
| IV | 845 | 721 (29.5) | 124 (16.5) | −0.312 | 119 (17.3) | 123 (17.9) | 0.015 |
| Cancer grade | |||||||
| Low | 129 | 99 (4.0) | 30 (4.0) | −0.003 | 26 (3.8) | 28 (4.1) | 0.015 |
| High | 2967 | 2288 (93.5) | 679 (90.3) | −0.116 | 626 (91.1) | 624 (90.8) | −0.010 |
| Unknown | 104 | 61 (2.5) | 43 (5.7) | 0.163 | 35 (5.1) | 35 (5.1) | 0 |
| Year of diagnosis | |||||||
| 2002 | 320 | 256 (10.5) | 64 (8.5) | −0.067 | 63 (9.2) | 62 (9.0) | −0.005 |
| 2003 | 321 | 262 (10.7) | 59 (7.8) | −0.099 | 52 (7.6) | 58 (8.4) | 0.032 |
| 2004 | 352 | 274 (11.2) | 78 (10.4) | −0.027 | 65 (9.5) | 70 (10.2) | 0.025 |
| 2005 | 367 | 282 (11.5) | 85 (11.3) | −0.007 | 84 (12.2) | 79 (11.5) | −0.023 |
| 2006 | 336 | 243 (9.9) | 93 (12.4) | 0.078 | 78 (11.4) | 81 (11.8) | 0.014 |
| 2007 | 304 | 236 (9.6) | 68 (9.0) | −0.021 | 55 (8.0) | 65 (9.5) | 0.052 |
| 2008 | 317 | 245 (10.0) | 72 (9.6) | −0.015 | 77 (11.2) | 64 (9.3) | −0.062 |
| 2009 | 286 | 216 (8.8) | 70 (9.3) | 0.017 | 67 (9.8) | 64 (9.3) | −0.015 |
| 2010 | 308 | 225 (9.2) | 83 (11.0) | 0.061 | 74 (10.8) | 71 (10.3) | −0.014 |
| 2011 | 289 | 209 (8.5) | 80 (10.6) | 0.071 | 72 (10.5) | 73 (10.6) | 0.005 |
Abbreviation: USD, US dollar.
a
Educational level was specified according to the percentage of residents who had at least 4 years of college education.