Table 1 Colorectal surgery patients identified by data source of cancer registry, physician billing and hospital inpatient data
From: Validation of colorectal cancer surgery data from administrative data sources
Surgery Patients Identified from Each Data Source | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Factors | All Patients | Cancer Registry | Physician Billing | Hospital Inpatient | Combined Administrative | ||||
n | n | (%) 1 | n | (%) 1 | n | (%) 1 | n | (%) 1 | |
8308 | 7066 | (85) | 7173 | (86) | 6905 | (83) | 7241 | (87) | |
Year | |||||||||
2000 | 1324 | 1149 | (87) | 1168 | (88) | 1131 | (85) | 1183 | (89) |
2001 | 1331 | 1126 | (85) | 1155 | (87) | 1109 | (83) | 1166 | (88) |
2002 | 1337 | 1152 | (86) | 1170 | (88) | 1135 | (85) | 1181 | (88) |
2003 | 1432 | 1231 | (86) | 1232 | (86) | 1200 | (84) | 1250 | (87) |
2004 | 1418 | 1176 | (83) | 1202 | (85) | 1152 | (81) | 1210 | (85) |
2005 | 1466 | 1232 | (84) | 1246 | (85) | 1194 | (81) | 1257 | (86) |
Stage | |||||||||
I | 1387 | 1379 | (99) | 1251 | (90) | 1204 | (87) | 1259 | (91) |
II | 2207 | 2166 | (98) | 2167 | (98) | 2125 | (96) | 2174 | (99) |
III | 1902 | 1875 | (99) | 1867 | (98) | 1835 | (96) | 1870 | (98) |
IV | 1953 | 1164 | (60) | 1396 | (71) | 1293 | (66) | 1436 | (74) |
Missing | 859 | 482 | (56) | 492 | (57) | 464 | (54) | 508 | (59) |
Tumor Site | |||||||||
Colon | 5303 | 4534 | (85) | 4585 | (86) | 4429 | (84) | 4608 | (87) |
Rectum | 3005 | 2532 | (84) | 2588 | (86) | 2492 | (83) | 2639 | (88) |