Table 2.
Predicted probabilities of CRC incidence and mortality in the two cohorts - Multivariate logistic regression model
| Study cohorts | Colonoscopy | Estimate | 95% CI | Absolute risk difference | 95% CI | |
|---|---|---|---|---|---|---|
|
Unselected cohort (n = 1,341,612) |
|
|
|
|
|
|
| |
Incidence |
|
|
|
|
|
| |
|
No |
1.75 |
1.73, 1.77 |
3.26 |
3.22, 3.30 |
| |
|
Yes |
5.01 |
4.97, 5.04 |
|
|
| |
Mortality |
|
|
|
|
|
| |
|
No |
0.38 |
0.33, 0.42 |
0.79 |
0.71, 0.87 |
| |
|
Yes |
1.17 |
1.10, 1.23 |
|
|
|
Restricted cohort (n = 1,089,998) |
|
|
|
|
|
|
| |
Incidence |
|
|
|
|
|
| |
|
No |
1.42 |
1.39, 1.44 |
-0.53 |
-0.60, -0.44 |
| |
|
Yes |
0.90 |
0.82, 0.98 |
|
|
| |
Mortality |
|
|
|
|
|
| |
|
No |
0.24 |
0.18, 0.29 |
-0.08 |
-0.19, 0.04 |
| Yes | 0.16 | 0.13, 0.34 |
Data are presented as percentages.
CRC, colorectal cancer; CI, confidence interval.
Multivariate logistic model adjusted subject characteristics such as age, sex, charlson comorbidity index, rural area of residence and income quintile.