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Difference in Differences
| Difference in Differences: | Percentage point change age 50–64 | Percentage point change age 40–49 | Difference in differences | p |
|---|---|---|---|---|
| Colonoscopy (n = 17,788) | −0.23 (−1.8 to 1.4) | 0.02 (−1.2 to 1.2) | −0.25 (−2.1 to 1.7) | 0.80 |
| Sigmoidoscopy (n = 17,965) | −0.73 (−1.1 to 0.29) | −0.12 (−0.46 to 0.21) | −0.60 (−1.1 to −0.07) | 0.028 |
| FOBT (n = 24,902) | −1.2 (−2.3 to −0.03) | 0.17 (−1.1 to 1.4) | −1.4 (−3.0 to 0.27) | 0.10 |
