TABLE 1.
Patient and provider characteristics by outpatient colonoscopy procedures
| No polypectomy |
With polypectomy |
|||||
|---|---|---|---|---|---|---|
| Characteristics | Simple colonoscopy (no biopsy) | Cold biopsy forceps (single or multiple) | Ablation | Hot biopsy forceps or cautery | Snare | Complex colonoscopy (biopsy and polypectomy) |
| Total no. (%) | 1,027,515 (44.38) | 292,667 (12.64) | 52,024 (2.25) | 346,150 (14.95) | 403,077 (17.41) | 193,693 (8.37) |
| Patient characteristics | ||||||
| Age categories, y, no. (%) | ||||||
| 19-49 | 211,157 (20.55) | 79,643 (27.21) | 4753 (9.14) | 37,460 (10.82) | 41,753 (10.36) | 21,269 (10.98) |
| 50-64 | 396,560 (38.59) | 92,588 (31.64) | 15,731 (30.24) | 120,465 (34.8) | 142,148 (35.27) | 61,304 (31.65) |
| 65-74 | 240,792 (23.43) | 68,251 (23.32) | 16,858 (32.4) | 110,036 (31.79) | 126,111 (31.29) | 62,187 (32.11) |
| 75-84 | 154,680 (15.05) | 44,732 (15.28) | 12,781 (24.57) | 68,876 (19.9) | 81,009 (20.1) | 42,512 (21.95) |
| >85 | 24,326 (2.37) | 7453 (2.55) | 1901 (3.65) | 9313 (2.69) | 12,056 (2.99) | 6421 (3.32) |
| Sex, no. (%) | ||||||
| Male | 411,558 (40.05) | 114,401 (39.09) | 27,213 (52.31) | 180,643 (52.19) | 221,214 (54.88) | 105,664 (54.55) |
| Female | 615,957 (59.95) | 178,266 (60.91) | 24,811 (47.69) | 165,507 (47.81) | 181,863 (45.12) | 88,029 (45.45) |
| Race, no. (%) | ||||||
| White | 778,400 (75.76) | 236,897 (80.94) | 43,913 (84.41) | 277,749 (80.24) | 321,672 (79.8) | 165,145 (85.26) |
| Hispanic | 98,072 (9.54) | 17,513 (5.98) | 2875 (5.53) | 26,687 (7.71) | 27,776 (6.89) | 9484 (4.9) |
| Black/African American | 72,992 (7.1) | 14,667 (5.01) | 2291 (4.4) | 15,207 (4.39) | 19,831 (4.92) | 7425 (3.83) |
| Other/unknown | 78,051 (7.6) | 23,590 (8.06) | 2945 (5.66) | 26,507 (7.66) | 33,798 (8.38) | 11,639 (6.01) |
| Risk score, mean (SD) | 1.29 (0.68) | 1.36 (0.73) | 1.49 (0.68) | 1.43 (0.65) | 1.44 (0.67) | 1.53 (0.71) |
| Insurance types, no. (%) | ||||||
| Medicare | 342,422 (33.33) | 104,664 (35.76) | 25,409 (48.84) | 153,782 (44.43) | 173,447 (43.03) | 92,364 (47.69) |
| Medicare HMO | 36,524 (3.55) | 9054 (3.09) | 2376 (4.57) | 18,383 (5.31) | 19,223 (4.77) | 10,577 (5.46) |
| Medicaid | 12,632 (1.23) | 4040 (1.38) | 393 (0.76) | 2632 (0.76) | 3003 (0.75) | 1350 (0.7) |
| Medicaid HMO | 5001 (0.49) | 1522 (0.52) | 180 (0.35) | 1213 (0.35) | 1140 (0.28) | 766 (0.4) |
| Indemnity | 214,836 (20.91) | 65,293 (22.31) | 7686 (14.77) | 59,195 (17.1) | 73,289 (18.18) | 32,540 (16.8) |
| Commercial HMO | 207,815 (20.23) | 51,025 (17.43) | 7803 (15) | 52,389 (15.13) | 65,827 (16.33) | 25,683 (13.26) |
| Commercial PPO | 168,554 (16.4) | 44,538 (15.22) | 6527 (12.55) | 46,552 (13.45) | 52,866 (13.12) | 24,402 (12.6) |
| Self-pay/charity | 15,677 (1.53) | 4624 (1.58) | 503 (0.97) | 4523 (1.31) | 4876 (1.21) | 2165 (1.12) |
| Other payers | 24,054 (2.34) | 7907 (2.7) | 1147 (2.2) | 7481 (2.16) | 9406 (2.33) | 3846 (1.99) |
| Provider characteristics | ||||||
| Endoscopist volume, mean (SD) | ||||||
| <300 | 179 (81) | 177 (82) | 180 (80) | 183 (81) | 188 (79) | 188 (77) |
| ≥300 | 683 (313) | 653 (305) | 615 (263) | 704 (374) | 693 (329) | 703 (390) |
| Facility type, no. (%) | ||||||
| ASC | 573,670 (55.83) | 177,131 (60.52) | 21,951 (42.19) | 186,310 (53.82) | 222,696 (55.25) | 94,247 (48.66) |
| HOPD | 453,845 (44.17) | 115,536 (39.48) | 30,073 (57.81) | 159,840 (46.18) | 180,381 (44.75) | 99,446 (51.34) |
SD, Standard deviation; HMO, health maintenance organization; PPO, preferred provider organization; ASC, ambulatory surgery center; HOPD, hospital outpatient department.