Volume 53, Issue 10 pp. 968-977
ORIGINAL ARTICLE

Validation of fatty liver index as a predictor of hepatic steatosis in Asian populations: Impact of alcohol consumption and sex

Takako Nomura

Corresponding Author

Takako Nomura

Department of Gastroenterology and Hepatology, HITO Medical Center, Shikokutyuou, Japan

Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kita-gun, Japan

Correspondence

Takako Nomura, Department of Gastroenterology and Hepatology, HITO Medical Center, 788-1 Kamibun-Cho, Shikokutyuou, Ehime 799-0121, Japan.

Email: [email protected]

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Masafumi Ono

Masafumi Ono

Department of Gastroenterology and Hepatology, HITO Medical Center, Shikokutyuou, Japan

Division of Innovative Medicine for Hepatobiliary and Pancreatology, Faculty of Medicine, Kagawa University, Kita-gun, Japan

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Kiyoyuki Kobayashi

Kiyoyuki Kobayashi

Department of Gastroenterology and Hepatology, HITO Medical Center, Shikokutyuou, Japan

Division of Innovative Medicine for Hepatobiliary and Pancreatology, Faculty of Medicine, Kagawa University, Kita-gun, Japan

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Yuzuru Akaiwa

Yuzuru Akaiwa

Department of Gastroenterology and Hepatology, HITO Medical Center, Shikokutyuou, Japan

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Maki Ayaki

Maki Ayaki

Department of Gastroenterology and Hepatology, HITO Medical Center, Shikokutyuou, Japan

Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kita-gun, Japan

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Tomohiro Ogi

Tomohiro Ogi

Department of Gastroenterology and Hepatology, HITO Medical Center, Shikokutyuou, Japan

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Maki Ogi

Maki Ogi

Department of Gastroenterology and Hepatology, HITO Medical Center, Shikokutyuou, Japan

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Hirokazu Takahashi

Hirokazu Takahashi

Liver Center, Saga University Hospital, Faculty of Medicine, Saga University, Saga, Japan

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Kayo Ishikawa

Kayo Ishikawa

Department of Gastroenterology and Hepatology, HITO Medical Center, Shikokutyuou, Japan

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Asahiro Morishita

Asahiro Morishita

Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kita-gun, Japan

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Hideki Kobara

Hideki Kobara

Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kita-gun, Japan

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Tsutomu Masaki

Tsutomu Masaki

Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kita-gun, Japan

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First published: 09 June 2023
Citations: 5

Abstract

Aim

This study was undertaken to investigate the utility of the fatty liver index (FLI) as a noninvasive tool for predicting hepatic steatosis based on alcohol consumption and sex in a large Asian population.

Methods

We carried out a single-center observational cohort study at the HITO Medical Center in Japan and enrolled 1976 Asian subjects. The subjects were categorized into nondrinkers and light drinkers (0–19 g/day) and moderate drinkers (20–59 g/day) based on their self-reported alcohol intake. We used physical examinations, laboratory tests, and a questionnaire to collect information on various factors related to the FLI, including body mass index, waist circumference, and levels of γ-glutamyl transferase and triglycerides.

Results

The diagnostic accuracy of the FLI was assessed by calculating the area under the receiver operating characteristic curve (AUROC), and optimal cut-off values were determined using Youden's index. The FLI had an acceptable performance index of >0.7 both overall and in all subgroups, with an overall AUROC of 0.844. The AUROCs were higher in women and moderate drinkers of both sexes. We also compared the cut-off values obtained in the present study with the previously reported values of 30 and 60. Optimal cut-off values for the FLI were calculated for the total population and subgroups and were found to differ from the previously established values in other countries.

Conclusions

Our study suggests that the FLI is a useful noninvasive marker for predicting hepatic steatosis in a large Asian population, irrespective of alcohol consumption and sex.

CONFLICT OF INTEREST STATEMENT

The authors have no conflict of interest.

DATA AVAILABILITY STATEMENT

The datasets used and/or analyzed during the current study are available from the corresponding author upon reasonable request.

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