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The value of atherogenic index of plasma in non-obese patients with non-alcoholic fatty liver disease: a secondary analysis based on a cross-sectional study.


 Background

Atherogenic index of plasma (AIP) is elevated in fatty liver, but its value in non-obese patients with non-alcoholic fatty liver disease (NAFLD) is unclear.
Methods

The present study involved non-obese Chinese and Japanese participants. We used univariate and multivariate logistic regression model to determine risk factors. The performances of risk factors were compared by calculation of the area under the receiver operating characteristic curve.
Results

In the unadjusted model, we observed that odds ratio (OR) for every one standard deviation (SD) increase in AIP was 52.30. In the adjusted model I and model II, the OR for every one SD increase in AIP was 36.57 and 50.84, respectively. The area under the receiver operating characteristic curve for AIP was 0.803 and 0.802 in the development group and in the validation group, respectively. The best cut-off value of AIP in the discrimination between NAFLD and non-NAFLD was 0.005 in the Chinese group and was − 0.220 in the Japanese group, respectively.
Conclusions

Our results indicate that AIP and NAFLD have a positive correlation in Chinese and Japanese populations. AIP is an independent correlative factor of non-obese patients with NAFLD, which can be used as a new indicator of health examination.