Participation by age, gender, social economic status and rural versus urban in all screening arms; multivariate analysis
| Parameter | gFOBT, OR (CI) | FIT, OR (CI) | FS, OR (CI) |
| Men | 1 | 1 | 1 |
| Women | 1.1 (0.9 to 1.4)† | 1.3 (1.1 to 1.4)* | 0.9 (0.8 to 1.0)* |
| 50–59 years | 0.8 (0.7 to 1.0)*† | 0.8 (0.7 to 0.9)* | 0.9 (0.7 to 1.0)* |
| 60–64 years | 1 | 1 | 1 |
| 65–74 years | 1.0 (0.8 to 1.2)† | 1.0 (0.8 to 1.2) | 0.8 (0.6 to 0.9)* |
| SES low | 1 | 1 | 1 |
| SES middle | 1.2 (1.1 to 1.4)* | 0.9 (0.8 to 1.1) | 1.0 (0.8 to 1.2) |
| SES high | 1.1 (1.0 to 1.3) | 1.3 (1.1 to 1.5)* | 1.2 (1.0 to 1.4)* |
| Strong urban | 1 | 1 | 1 |
| Urban | 1.7 (1.4 to 2.1)* | 1.2 (1.0 to 1.5) | 1.2 (1.0 to 1.5) |
| Rural | 2.6 (1.9 to 3.6)* | 2.3 (1.6 to 3.3)* | 1.8 (1.3 to 2.6)* |
Odds ratios (ORs) adjusted for all the other variables in the table.
*p<0.05.
†Interaction of age and sex in the gFOBT arm. Therefore age-specific OR (participants aged 60–64 years) are presented for men and women and sex specific ORs (male) for the different age groups.
CI, confidence interval; FIT, immunochemical faecal occult blood test; FS, flexible sigmoidoscopy; gFOBT, guaiac-based faecal occult blood test; SES, social economic status.