1st Biennial invitation round (n=62 061) | 2nd Biennial invitation round (n=58 20) | 3rd Biennial invitation round (n=55 016) | ||||
---|---|---|---|---|---|---|
OR | 95% CI | OR | 95% CI | OR | 95% CI | |
Sociodemographics | ||||||
Women | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | |||
Men | 0.72*** | 0.70 to 0.74 | 0.93** | 0.89 to 0.97 | 1.05 | 0.99 to 1.10 |
IMD score (0–80) | 0.98*** | 0.98 to 0.98 | 0.98*** | 0.98 to 0.99 | 0.99*** | 0.98 to 0.99 |
Age at 1st invitation (60–64) | ||||||
Age 60–61 | 1.00 (ref) | – | – | |||
Age 62–63 | 1.05** | 1.01 to 1.08 | – | – | ||
Age 64 | 1.07* | 1.01 to 1.14 | – | – | ||
Age at 2nd invitation (62–70) | ||||||
Age 62–63† | – | 1.00 (ref) | – | |||
Age 64–65 | – | 1.06** | 1.02 to 1.12 | – | ||
Age 66+ | – | 1.08 | 0.99 to 1.17 | – | ||
Age at 3rd invitation (63–72) | ||||||
Age 64–65‡ | – | – | 1.00 (ref) | |||
Age 66–67 | – | – | 0.93*** | 0.88 to 0.99 | ||
Age 68+ | – | – | 0.83*** | 0.75 to 0.92 | ||
Previous uptake pattern | ||||||
Previous uptake patterns at 2nd invitation | ||||||
Previous Responders | – | 1.00 (ref) | – | |||
Previous Non-Responders | – | 0.05*** | 0.05 to 0.05 | – | ||
Previous uptake patterns at 3rd invitation | ||||||
Consistent Screeners | – | – | 1.00 (ref) | |||
Late Entrants | – | – | 0.21*** | 0.19 to 0.23 | ||
Dropouts | – | – | 0.09*** | 0.08 to 0.09 | ||
Consistent Non-Responders | – | – | 0.01*** | 0.01 to 0.01 |
Listwise deletion was used for the multivariable logistic regression analysis.
* p<.05; ** p<.01; *** p<.001.
†Includes 61-year-olds turning 62 in the same month (n=1).
‡Includes 63-year-olds turning 64 in the same month (n=2).
gFOB, guaiac-based faecal occult blood; IMD, Index of Multiple Deprivation.