Table 1. Cohort demographics according to implant status.
| Demographic | Total Cohort | No Implant | Concurrent Implant | Staged Implant | p-value |
|---|---|---|---|---|---|
| Total | 8803 (100%) | 8564 (97.29%) | 190 (2.16%) | 49 (0.56%) | - |
| Age | 39.71 ± 13.9 | 39.87 ± 13.94 | 33.53 ± 10.42 | 35.2 ± 11.25 | 0.398 |
| Charlson Comorbidity Index | |||||
| 0 | 636 (7.22%) | 621 (7.25%) | 13 (6.84%) | 2 (4.08%) | 0.495 |
| 1 | 6325 (71.85%) | 6134 (71.63%) | 148 (77.89%) | 43 (87.76%) | |
| 2 | 1349 (15.32%) | 1323 (15.45%) | 23 (12.11%) | 3 (6.12%) | |
| 3+ | 493 (5.6%) | 486 (5.67%) | 6 (3.16%) | 1 (2.04%) | |
| Region | |||||
| Northeast | 1981 (22.5%) | 1922 (22.44%) | 49 (25.79%) | 10 (20.41%) | 0.089 |
| Midwest | 2078 (23.61%) | 2044 (23.87%) | 27 (14.21%) | 7 (14.29%) | |
| South | 2936 (33.35%) | 2861 (33.41%) | 52 (27.37%) | 23 (46.94%) | |
| West | 1629 (18.51%) | 1560 (18.22%) | 60 (31.58%) | 9 (18.37%) | |
| Other | 179 (2.03%) | 177 (2.07%) | 2 (1.05%) | 0 (0%) | |
| Population Density | |||||
| Urban | 7686 (87.31%) | 7461 (87.12%) | 183 (96.32%) | 42 (85.71%) | 0.013 |
| Rural | 1117 (12.69%) | 1103 (12.88%) | 7 (3.68%) | 7 (14.29%) | |
| Insurance Type | |||||
| Comprehensive | 293 (3.33%) | 291 (3.4%) | 2 (1.05%) | 0 (0%) | 0.135 |
| EPO | 155 (1.76%) | 146 (1.7%) | 9 (4.74%) | 0 (0%) | |
| HMO | 1009 (11.46%) | 970 (11.33%) | 31 (16.32%) | 8 (16.33%) | |
| PPO | 5371 (61.01%) | 5227 (61.03%) | 115 (60.53%) | 29 (59.18%) | |
| POS | 574 (6.52%) | 563 (6.57%) | 7 (3.68%) | 4 (8.16%) | |
| POS with Capitation | 60 (0.68%) | 59 (0.69%) | 1 (0.53%) | 0 (0%) | |
| CDHP | 471 (5.35%) | 460 (5.37%) | 11 (5.79%) | 5 (10.2%) | |
| HDHP | 339 (3.85%) | 333 (3.89%) | 3 (1.58%) | 3 (6.12%) | |
| Missing | 531 (6.03%) | 515 (6.01%) | 11 (5.79%) | 5 (10.2%) | |
| Surgical Setting | |||||
| Outpatient | 8519 (96.77%) | 8283 (96.72%) | 189 (99.47%) | 47 (95.92%) | 0.203 |
| Inpatient | 284 (3.23%) | 281 (3.28%) | 1 (0.53%) | 2 (4.08%) | |
| Cancer Status | |||||
| Metastatic Disease | 1150 (13.06%) | 1125 (13.14%) | 20 (10.53%) | 5 (10.2%) | 1.000 |
| Additional Cancer Treatment | 4319 (49.06%) | 4201 (49.05%) | 93 (48.95%) | 25 (51.02%) | 0.921 |
EPO: exclusive provider organization; HMO: health maintenance organization; PPO: preferred provider organization; POS: point of service, CDHP: consumer directed health plan; HDHP: high deductible health plan