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Table 4 Threshold effect analysis between AA intake and the prevalence of ED before and after PSM

From: Association between polyunsaturated fatty acid intake and the prevalence of erectile dysfunction: A cross-sectional analysis of the NHANES 2001–2004

Outcome: ED

OR (95% CI), P

Before PSM

After PSM

Model 1

  

Linear effect

0.33 (0.20, 0.56), < 0.001

0.36 (0.20, 0.65), < 0.001

Model 2

  

Inflection point (K)

0.331

0.109

AA < K

0.44 (0.20, 0.96), 0.038

0.19 (0.01, 2.90) 0.233

AA > K

0.19 (0.05, 0.72), 0.014

0.40 (0.19, 0.85) 0.016

Log likelihood ratio

0.341

0.645

  1. Note: All covariates were adjusted in this model. Abbreviations: AA, arachidonic acid; ED, erectile dysfunction; PSM, propensity score matching; OR, odds ratio; CI, confidence interval
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Lipids in Health and Disease

ISSN: 1476-511X