TABLE 4.
Range of dietary fiber intake (g/1000 kcal) and magnitude of relative risk (RR) estimate in studies that investigated associations with endometrial cancer risk1
| Study | Fiber intake categories | Lower cutoff2 | Upper cutoff2 | Difference (estimate of range of intake) | High vs low RR estimate | Ln(RR), absolute value3 |
|---|---|---|---|---|---|---|
| g · 1000 kcal−1 · d−1 | g · 1000 kcal−1 · d−1 | |||||
| Jain et al, 2000, case-cohort study | 4 | 7.649 | 11.753 | 4.103 | 1.24 | 0.215 |
| Barbone et al, 1993 (10) | 3 | 10.024 | 12.983 | 2.959 | 0.6 | 0.511 |
| Xu et al, 2007 (18) | 5 | 4.8 | 8.1 | 3.3 | 0.8 | 0.223 |
| Potischman et al, 1993 (11) | 4 | 6.170 | 10.897 | 4.728 | 0.7 | 0.357 |
| Littman et al, 2001 (16) | 5 | 5.6 | 10.7 | 5.1 | 0.68 | 0.386 |
| Jain et al, 2000, case-control study (15) | 4 | 9.529 | 15.235 | 5.706 | 0.71 | 0.342 |
| McCann et al, 2000 (13) | 4 | 9.515 | 15.224 | 5.709 | 0.5 | 0.693 |
| Goodman et al, 1997 (12) | 4 | 6.856 | 13.322 | 6.466 | 0.47 | 0.755 |
1
The correlation between range of intake and absolute value of ln(RR) is 0.58, including Jain et al (9) and 0.55 excluding Jain et al (9).
2
Values were estimated from reported g/d and total energy intake, except for Littman et al (16) and Xu et al (18).
3
Provides a common measure of departure of odds ratio/RR from the null value, regardless of direction of effect.