Table 4

Relative risk (RR) of hospital admission or death from diverticular disease in the Million Women Study for total and the various types of fibre, unadjusted and adjusted for intakes of other sources of fibre

Unadjusted for other sources of fibreAdjusted for other sources of fibre
RR (95% CI)*p ValueRR (95% CI)p Value
Total per 5 g/day0.86 (0.84 to 0.88)<0.0001
By source of dietary fibre
 Cereal per 5 g/day0.81 (0.78 to 0.85)<0.00010.84 (0.81 to 0.88)<0.0001
 Fruit fibre per 5 g/day0.77 (0.73 to 0.82)<0.00010.81 (0.77 to 0.86)<0.0001
 Vegetable fibre per 5 g/day0.90 (0.82 to 0.99)0.0351.03 (0.93 to 1.14)0.634
 Potato fibre per g/day1.07 (1.05 to 1.10)<0.00011.04 (1.02 to 1.07)0.002
 Test for heterogeneity by source of fibre<0.0001<0.0001
  • *Stratified by region and adjusted for age, socioeconomic status, smoking, alcohol, body mass index, height, current use of hormone therapy for menopause, total energy intake and type of meat consumed.