| All patients | Restricted cohort |  |  | Propensity Matched sample |  | |||
---|---|---|---|---|---|---|---|---|---|
 |  | No colonoscopy | Yes colonoscopy |  | Standardized difference | No colonoscopy | Yes colonoscopy |  | Standardized difference |
Characteristics | Â | (%) | (%) | P value | Â | (%) | (%) | P value | Â |
# of patients | 1,089,998 | 1,003,161 | 86,837 | Â | Â | 86,592 | 86,592 | Â | Â |
Female patients | 591,431 (54.3) | 543,040 (54.1) | 48,391 (55.7) | <.001 | 3.22% | 48,207 (55.7) | 48,252 (55.7) | 0.82 | 0.00% |
Patient age group | Â | Â | Â | <.001 | Â | Â | Â | 0.62 | Â |
50-59 | 461,161 (42.3) | 425,29 1 (42.4) | 35,870 (41.3) | Â | 2.23% | 35,695 (41.2) | 35,775 (41.3) | Â | 0.20% |
60-69 | 379,961 (34.9) | 344,492 (34.3) | 35,469 (40.9) | Â | 13.66% | 35,289 (40.8) | 35,365 (40.8) | Â | 0.00% |
70-74 | 248,876 (22.8) | 233,378 (23.3) | 15,498 (17.9) | Â | 13.38% | 15,608 (18.0) | 15,452 (17.8) | Â | 0.52% |
Income quintile | Â | Â | Â | <.001 | Â | Â | Â | 0.75 | Â |
01 | 187,006 (17.2) | 173,598 (17.3) | 13,408 (15.1) | Â | 5.97% | 13,230 (15.3) | 13,407 (15.5) | Â | 0.55% |
02 | 219,705 (20.1) | 203,403 (20.3) | 16,302 (18.7) | Â | 4.04% | 16,378 (18.9) | 16,300 (18.8) | Â | 0.26% |
03 | 220,765 (20.3) | 203,512 (20.3) | 17,253 (19.9) | Â | 1.00% | 17,326 (20.0) | 17,251 (19.9) | Â | 0.25% |
04 | 219,289 (20.1) | 201,626 (20.1) | 17,663 (20.5) | Â | 0.99% | 17,587 (20.3) | 17,663 (20.4) | Â | 0.25% |
05 | 240,663 (22.1) | 218,691 (21.8) | 21,972 (25.7) | Â | 9.17% | 22,071 (25.5) | 21,971 (25.4) | Â | 0.23% |
Missing | 2,570 (0.3) | 2,331 (0.2) | 239 (0.3) | Â | Â | Â | Â | Â | Â |
Rural area of residence | 149,199 (13.7) | 136,594 (13.6) | 12,605 (14.5) | <.001 | 2.59% | 11,262 (13.0) | 12,434 (14.4) | <.001 | 4.07% |
Co-morbidities | Â | Â | Â | <.001 | Â | Â | Â | 0.13 | Â |
Not hospitalized Hospitalized but no comorbidities | 519,817 (47.7) | 514,294 (51.3) | 5,523 (6.4) | Â | 114.09% | 5,516 (6.4) | 5,516 (6.4) | Â | 0.00% |
 | 401,168 (36.8) | 337,586 (33.6) | 63,582 (73.2) |  | 86.49% | 63,752 (73.6) | 63,415 (73.2) |  | 0.91% |
At least one comorbidity | 169,013 (15.5) | 151,281 (15.1) | 17,732 (20.4) | Â | 13.90% | 17,324 (20.0) | 17,661 (20.4) | Â | 1.00% |