Table 1

- Summary of included studies.

ReferencesRegionPopulationDiagnostics usedNNAFLD prevalence (%)
OverallIn leanIn nonobese
Zhang YN et al17ZhejiangHealth checkupUltrasonography6285 10.4% 
Li C et al18HeilongjiangHealth checkupUltrasonography177950.5%18.3% 
Wang Q et al19ZhejiangHealth checkupUltrasonography253833.6%13.1% 
Xu C et al20ZhejiangPopulation basedUltrasonography6905  7.3%
Wei JL et al21Hong KongPopulation basedH-MRS91128.8% 19.3%
Zeng J et al22ShanghaiHealth checkupUltrasonography271540.5%21.4%28.1%
Zheng X et al23ChongqingHealth checkupUltrasonography95924  8.2%
Luo Z et al24ChongqingHealth checkupUltrasonography34306  3.4%
Wang L et al25ShanghaiHealth checkupUltrasonography881729.0%7.1% 
Li Y et al26ZhejiangPopulation basedUltrasonography9767  8.6%
Li Q et al27ShanghaiPopulation basedUltrasonography2668  10.9%
Lu Z et al28ZhejiangHealth checkupUltrasonography5916 11.7% 
Lin H et al29Hong KongPopulation basedH-MRS90428.6%12.5%19.2%
Wong VWS et al30Hong KongPopulation basedH-MRS56513.8%8.0%11.2%
Chen CH et al31TaiwanPopulation basedUltrasonography1444  11.5%
Huang JF et al32TaiwanHealth checkupUltrasonography248344.5% 26.2%
Hsu CL et al33TaiwanHealth checkupUltrasonography4000  18.5%
Zou Y et al34ZhejiangHealth checkupUltrasonography12127  17.7%
You G et al35ShandongHealth checkupUltrasonography2029  16.6%
Wu L et al36ZhejiangHealth checkupUltrasonography11906  17.2%
Lu CW et al37TaiwanPopulation basedUltrasonography606  32.2%
Xiao SJ et al38ChongqingHealth checkupUltrasonography1867622.0% 6.5%
Lee SW et al39TaiwanHealth checkupUltrasonography200824.5% 10.4%
Wang Z et al40HubeiHealth checkupUltrasonography2503224.6% 12.2%
Hu PF et al41ShanghaiPopulation basedUltrasonography371732.7% 16.3%

  • NAFLD: nonalcoholic fatty liver disease, H-MRS: H-magnetic resonance spectroscopy