Characteristics of Million Women Study participants according to fifths of total dietary fibre intake
| Fifths of total dietary fibre intake (g/day) | ||||||
|---|---|---|---|---|---|---|
| Categories of fibre intake at baseline | <9.6 | 9.6–12.2 | 12.2–14.6 | 14.6–17.6 | ≥17.6 | All women |
| Remeasured dietary fibre intake (g/day), mean (SD)* | 9.5 (3.8) | 11.9 (3.4) | 13.7 (3.3) | 15.6 (3.7) | 18.8 (4.8) | 14.2 (5.0) |
| Characteristics | ||||||
| Number of women | 137 951 | 137 874 | 138 049 | 138 078 | 138 123 | 690 075 |
| Mean (SD) age, years | 59.7 (4.9) | 59.8 (4.9) | 59.9 (4.9) | 59.9 (4.9) | 60.0 (4.9) | 59.8 (4.9) |
| Mean (SD) alcohol intake, units/week† | 4.7 (6.3) | 4.8 (6.0) | 4.7 (5.7) | 4.6 (5.6) | 4.4 (5.4) | 4.6 (5.8) |
| Mean (SD) height, cm† | 161.3 (6.7) | 162.0 (6.6) | 162.4 (6.6) | 162.7 (6.6) | 163.2 (6.6) | 162.3 (6.7) |
| Mean (SD) body mass index, kg/m2† | 26.3 (4.7) | 26.2 (4.5) | 26.1 (4.4) | 25.9 (4.4) | 25.6 (4.4) | 26.0 (4.5) |
| Mean (SD) total energy intake (kJ) | 6213 (1887) | 7435 (1833) | 7951 (1893) | 8389 (1931) | 9228 (2199) | 7844 (2197) |
| Socioeconomic status, lowest third† | 44% | 35% | 31% | 29% | 28% | 33% |
| Current smokers† | 26% | 15% | 11% | 8% | 6% | 13% |
| Current users of hormone therapy for menopause† | 29% | 28% | 28% | 28% | 27% | 28% |
| Consume red or processed meat | 87% | 88% | 88% | 87% | 84% | 87% |
| Follow-up | ||||||
| Women-years of follow-up (thousands) | 817.1 | 830.6 | 837.8 | 842.3 | 847.2 | 4175 |
| New cases of diverticular disease | 3943 | 3629 | 3452 | 3300 | 3001 | 17 325 |
*Based on dietary intake in a random sample of 4265 women reported 21 (SD 14) months after baseline.
†Unknown for some women: 1032 for alcohol intake, 8597 for height, 13 632 for body mass index, 5059 for socioeconomic status, 1617 for smoking, 13 676 for hormone therapy use and 5458 for red meat consumption.