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Table 5 Threshold effect analysis of total MUFA on hearing thresholds by two-piecewise linear regression model

From: Association between nineteen dietary fatty acids and hearing thresholds: findings from a nationwide survey

Total MUFA

(energy (%))

Fitting by the standard linear model

Fitting by the two-piecewise linear model

Inflection point (K)

< K-segment effect

> K-segment effect

Log likelihood ratio

Low-frequency PTA

0.04 (-0.02, 0.10)

11.91

0.21 (0.03, 0.40)

-0.07 (-0.25, 0.11)

< 0.001

High-frequency PTA

-0.03 (-0.71, 0.63)

10.88

0.12 (0.02, 0.23)

-0.13 (-0.26, 0.00)

< 0.001

  1. Models were adjusted for sex, age, race, education, diabetes and energy. Ln-transformed concentration of fatty acids; Q, quartile; 95% CI, 95% confidence interval; PTA, Pure-tone average; SFA, saturated fatty acid; MUFA, monounsaturated fatty acid; PUFA, polyunsaturated fatty acid
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Lipids in Health and Disease

ISSN: 1476-511X