Table 3 Threshold effect analysis of the nonlinear association between BRI and constipation; this study found a nonlinear relationship where BRI below 3.19 increased constipation likelihood, while BRI above 3.19 decreased it. The results presented hereinafter have been adjusted for all variables.
From: Association between body roundness index and constipation using data from NHANES 2005–2010
Adjusted | ||
|---|---|---|
OR (95% CI) | P value | |
Constipation | ||
Fitting by standard linear model | 0.94 (0.91, 0.98) | 0.001 |
Fitting by two-piecewise linear model | ||
< 3.19 | 1.45 (1.07, 1.96) | 0.017 |
> 3.19 | 0.92 (0.88, 0.95) | < 0.001 |
Log-likelihood ratio | 0.004 | |
