Table 3 Saturation effect analysis of WWI (cm/√kg) on stage III/IV periodontitis.

From: Association between weight-adjusted waist index and severe periodontitis using NHANES 2009–2014

 

Adjusted OR (95% CI), P value

Inflection point

9.83, 12.38

WWI < 9.83

2.26 (1.21, 4.19) 0.0101

WWI ≥ 9.83, < 12.38

1.12 (1.02, 1.23) 0.0148

WWI ≥ 12.38

2.68 (1.37, 5.21) 0.0038

P for log likelihood ratio

< 0.001

  1. The adjusted factors involved gender, age, race, education level, marital status, PIR, alcohol consumption, smoking status, sleep disorder, physical activity, mental health (depression), hypertension, diabetes, frequency of using dental floss/devices, and BMI.
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