Table 1.
Provider Characteristics, by Physician’s Medical Specialty, 2010
| Alla | GE | GS | IM | FM | CRS | P valueb | |
|---|---|---|---|---|---|---|---|
| Overall Distribution, n (%) | 583 (100) |
153 (26.2) |
165 (28.3) |
76 (13.0) |
106 (18.2) |
17 (2.9) |
|
| Overall Annual Volume,c mean (SD) | 152 (240) |
426 (268) |
83 (102) |
38 (197) |
14 (38) |
275 (192) |
< .001 |
| Primary Office Setting, n (%) | |||||||
| Urban County | 399 (68.4) |
133 (86.9) |
117 (70.9) |
50 (65.8) |
40 (37.7) |
17 (100.0) |
< .001 |
| Rural County | 184 (31.6) |
20 (13.1) |
48 (29.1) |
26 (34.2) |
66 (62.3) |
N/A | |
| Hospital | 456 (78.2) |
61 (39.9) |
149 (90.3) |
69 (90.8) |
99 (93.4) |
15 (88.2) |
|
| Urban County | 287 (62.9) |
53 (86.9) |
104 (39.8) |
43 (62.3) |
33 (33.3) |
15 (100.0) |
< .001 |
| Rural County | 169 (37.1) |
8 (13.1) |
45 (30.2) |
26 (37.7) |
66 (66.7) |
N/A | |
| Ambulatory Surgery | 127 (21.8) |
92 60.1 |
16 9.7 |
7 9.2 |
7 6.6 |
2 (11.8) |
|
| Urban County | 112 (88.2) |
80 (87.0) |
13 (81.3) |
7 (100.0) |
7 (100.0) |
2 (100.0) |
.699 |
| Rural County | 15 (11.8) |
12 (13.0) |
3 (18.7) |
N/A | N/A | N/A | |
| Annual Volume, mean (SD) | 127 (201) |
349 (224) |
75 (89) |
38 (193) |
14 (38) |
219 (162) |
< .001 |
| Urban County | 154 (217) |
345 (224) |
40 (88) |
50 (234) |
29 (57) |
219 (162) |
|
| Rural County | 61 (144) |
377 (225) |
86 (92) |
14 (56) |
5 (13) |
N/A |
Includes providers not classified in 1 of the 5 predominant medical specialties providing colonoscopies.
P values calculated using analysis of variance (ANOVA) and Kruskal-Wallis for volume and Chi-square and Fisher Exact test for proportion comparisons.
Overall annual volume is based on data from any location where colonoscopy was provided by each provider, and annual volume at the primary office setting is based on data for all colonoscopies performed at the location in which the majority of procedures were performed. Volume calculations based on data from all patients served aged 50–74, including out-of-state patients and all colonoscopy indications (ie, surveillance, screening, and diagnostic).