Research Article
A Nonlinear Association between Tongue Fur Thickness and Tumor Marker Abnormality: A Cross-Sectional Study
Figure 4
Subgroup analysis. (a) Effect of less fur or peeling fur on abnormal tumor marker probability in different subgroups. (b) Effect of thick fur on abnormal tumor marker probability in different subgroups. Due to the small sample size, the model failed to calculate the OR value in the red tongue color subgroup.
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