Baseline characteristics, 2000–2005.
| Characteristic | ||||||
|---|---|---|---|---|---|---|
| Mean age at index, yrs; n, mean (SD) | ||||||
| All patients* | 9005 | 49 (11.97) | ||||
| ETA | 4585 | 47 (12.247) | ||||
| ADA | 1365 | 49 (9.977) | ||||
| IFX | 3055 | 50 (12.102) | ||||
| Sex, n (%) | Female | Male | ||||
| All patients** | 6720 (74.06) | 2353 (25.93) | ||||
| ETA | 3415 (73.55) | 1228 (26.45) | ||||
| ADA | 1050 (76.92) | 315 (23.08) | ||||
| IFX** | 2255 (73.55) | 810 (26.42) | ||||
| Patients per index year, n (%) | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 |
| All patients | 695 (7.66) | 1126 (12.41) | 1183 (13.04) | 2881 (31.75) | 2698 (29.73) | 491 (5.41) |
| ETA | 568 (12.23) | 555 (11.95) | 447 (9.63) | 1558 (33.56) | 1326 (28.56) | 189 (4.07) |
| ADA | 0 (0) | 0 (0) | 0 (0) | 552 (40.44) | 666 (48.79) | 147 (10.77) |
| IFX | 127 (4.14) | 571 (18.62) | 736 (24.01) | 771 (25.15) | 706 (23.03) | 155 (5.06) |
| Region at index, n (%) | East coast | Mid-West | South Central | West Coast | ||
| All patients | 2185 (24.08) | 3719 (40.99) | 2597 (28.62) | 573 (6.31) | ||
| ETA | 1099 (23.67) | 1929 (41.55) | 1292 (27.83) | 323 (6.96) | ||
| ADA | 408 (29.89) | 549 (40.22) | 324 (23.74) | 84 (6.15) | ||
| IFX | 678 (22.11) | 1241 (40.48) | 981 (32) | 166 (5.41) | ||
| Payer type at index, n (%) | Commercial | Medicare Risk | Medicare Gap | Other*** | ||
| All patients | 7338 (81.1) | 504 (5.57) | 11 (0.12) | 1190 (13.15) | ||
| ETA | 3777 (81.61) | 188 (4.06) | 2 (0.04) | 661 (14.28) | ||
| ADA | 1203 (88.59) | 26 (1.91) | 0 (0) | 129 (9.5) | ||
| IFX | 2358 (77.13) | 290 (9.49) | 9 (0.29) | 400 (13.08) | ||