Table 1.
Probability of CRC incidence and mortality in the two cohorts - Unadjusted model
| Study cohorts | Colonoscopy | Estimate | 95% CI | Absolute risk difference | 95% CI | |
|---|---|---|---|---|---|---|
|
Unselected cohort (n = 1,341,612) |
|
|
|
|
|
|
| |
Incidence |
|
|
|
|
|
| |
|
No |
1.61 |
1.59, 1.63 |
3.00 |
2.69, 3.30 |
| |
|
Yes |
4.61 |
4.31,4.91 |
||
| |
Mortality |
|
|
|
|
|
| |
|
No |
0.36 |
0.33, 0.38 |
0.80 |
0.73, 0.87 |
| |
|
Yes |
1.16 |
1.10, 1.23 |
|
|
|
Restricted cohort (n = 1,089,998) |
|
|
|
|
|
|
| |
Incidence |
|
|
|
|
|
| |
|
No |
1.36 |
1.35, 1.39 |
-0.52 |
-0.60, -0.46 |
| |
|
Yes |
0.84 |
0.77, 0.91 |
||
| |
Mortality |
|
|
|
|
|
| |
|
No |
0.23 |
0.19, 0.27 |
-0.08 |
-0.13, -0.03 |
| Yes | 0.15 | 0.12, 0.17 |
Data are presented as percentages.
CRC, colorectal cancer; CI, confidence interval.