Table 3 Generalized additive modeling and smoothed curve fitting.
From: The nonlinear association between body roundness index and infertility in married women
Infertility | Adjusted OR (95% CI), P value |
|---|---|
BRI | |
Fitting by the standard linear model | 1.13 (1.05, 1.21) 0.0009 |
Fitting by the two-piecewise linear model | |
Inflection point | 7.95 |
< 7.95 | 1.23 (1.10, 1.36) 0.0002 |
> 7.95 | 0.93 (0.76, 1.14) 0.4895 |
Log likelihood ratio | 0.038 |
