Multivariable logistic regression results of inadequate gFOB screening
| 1st Biennial invitation round (n=35 734) | 2nd Biennial invitation round (n=35 766) | 3rd Biennial invitation round (n=36 540) | ||||
|---|---|---|---|---|---|---|
| OR | 95% CI | OR | 95% CI | OR | 95% CI | |
| Sociodemographics | ||||||
| Women | 1.00 (ref) | 1.00 (ref) | 1.00 (ref) | |||
| Men | 1.26 | 0.90 to 1.76 | 2.09*** | 1.45 to 3.02 | 1.30 | 0.92 to 1.84 |
| IMD score (0–80) | 1.03*** | 1.02 to 1.05 | 1.02** | 1.00 to 1.03 | 1.02** | 1.01 to 1.04 |
| Age at 1st invitation (60–64) | ||||||
| Age 60–61 | 1.00 (ref.) | – | – | |||
| Age 62–63 | 1.06 | 0.75 to 1.51 | – | – | ||
| Age 64 | 1.04 | 0.55 to 1.96 | – | – | ||
| Age at 2nd invitation (62–70) | ||||||
| Age 62–63† | – | 1.00 (ref) | – | |||
| Age 64–65 | – | 1.05 | 0.73 to 1.51 | – | ||
| Age 66+ | – | 1.13 | 0.61 to 2.10 | – | ||
| Age at 3rd invitation (63–72) | ||||||
| Age 64–65‡ | – | – | 1.00 (ref) | |||
| Age 66–67 | – | – | 1.10 | 0.76 to 1.57 | ||
| Age 68+ | – | – | 1.29 | 0.69 to 2.39 | ||
| Previous uptake pattern | ||||||
| Previous uptake patterns at 2nd invitation | ||||||
| Previous Responders | – | 1.00 (ref) | – | |||
| Previous Non-Responders | – | 6.02*** | 4.25 to 8.52 | – | ||
| Previous uptake patterns at 3rd invitation | ||||||
| Consistent Screeners | – | – | 1.00 (ref) | |||
| Late Entrants | – | – | 2.86*** | 1.64 to 4.96 | ||
| Dropouts | – | – | 4.38*** | 2.52 to 7.60 | ||
| Consistent Non-Responders | – | – | 13.45*** | 8.97 to 20.19 | ||
Listwise deletion was used for the multivariable logistic regression analysis.
*p<0.05; ** p<0.01; *** p<0.001.
†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.