Table 2. Adjusteda RRs and 95% CIs for acceptance of screening in 899 166 women invited to bowel cancer screening.
| n Cases accepted/invited | RR (95% CI) | |
|---|---|---|
|
Socioeconomic level (tertiles) | ||
| Least deprived | 225 928/299 952 (75%) | 1.00 |
| Medium | 213 066/296 443 (72%) | 0.98 (0.97–0.98) |
| Most deprived | 185 246/296 097 (63%) | 0.90 (0.90–0.90) |
|
Ethnic group | ||
| White | 571 645/800 958 (71%) | 1.00 |
| Black | 2234/3598 (62%) | 0.94 (0.92–0.96) |
| South Asian | 2783/5375 (52%) | 0.77 (0.75–0.79) |
|
Smoking status | ||
| Never | 319 603/430 627 (74%) | 1.00 |
| Past | 176 156/240 928 (73%) | 0.98 (0.98–0.98) |
| Current | 99 159/176 939 (56%) | 0.78 (0.77–0.78) |
|
Body mass index (kg m−2) | ||
| <25 | 294 937/402 658 (73%) | 1.00 |
| 25–29 | 211 025/300 104 (70%) | 0.97 (0.96–0.97) |
| 30+ | 95 471/151 090 (63%) | 0.88 (0.88–0.89) |
|
Full-term pregnancy | ||
| Never | 64 403/94 204 (68%) | 1.00 |
| Ever | 563 797/803 588 (70%) | 1.04 (1.03–1.04) |
|
Oral contraceptive use | ||
| Never | 212 320/312 617 (68%) | 1.00 |
| Ever | 411 766/578 068 (71%) | 1.02 (1.02–1.02) |
|
HT use | ||
| Never | 281 419/415 220 (68%) | 1.00 |
| Ever | 341 919/474 460 (72%) | 1.04 (1.04–1.05) |
|
Strenuous exercise | ||
| <1 Per week | 353 722/522 151 (68%) | 1.00 |
| 1+ Per week | 257 287/346 552 (74%) | 1.04 (1.04–1.04) |
|
Alcohol (g per week ) | ||
| <20 | 321 029/474 789 (68%) | 1.00 |
| 20+ | 304 526/418 087 (73%) | 1.04 (1.03–1.04) |
|
Region | ||
| South | 302 043/428 801 (70%) | 1.00 |
| Midlands | 141 596/198 368 (71%) | 1.03 (1.02–1.03) |
| North | 185 337/271 997 (68%) | 0.99 (0.99–0.99) |
Abbreviations: CI=confidence interval; HT=hormone therapy for menopause; RR=relative risk.
a
Adjusted by age at invitation and calendar year categories, and all other factors listed above as appropriate.