Research Article

Serum Glycocholic Acid-to-Total Bile Acid Ratio Is Independently Associated with Nonalcoholic Fatty Liver Disease: A Retrospective Cross-Sectional Study

Table 2

Basic characteristics of the study population categorized by quartiles of the GCA-to-TBA ratio.

ParametersQ1 ()Q2 ()Q3 ()Q4 ()

Clinical characteristics
 Age (years)46 (37-55)45 (36-54)43 (36-52)44 (36-53)
 Gender, male1186 (70.7)1123 (66.7)1036 (61.3)921 (55.6)
 BMI (kg/m2)24.8 (22.6-27.1)24.6 (22.4-26.8)24.1 (22.1-26.5)24.1 (22.0-26.6)
 NAFLD (%)815 (48.6)757 (45.0)646 (38.2)641 (38.7)
 Diabetes (%)116 (6.9)94 (5.6)76 (4.5)61 (3.7)
 Metabolic syndrome (%)282 (16.8)244 (14.5)232 (13.7)200 (12.1)
 Hypertension (%)525 (31.3)445 (26.4)421 (24.9)373 (22.5)
Biochemical data
 ALT (IU/L)23 (16-35)22 (15-34)20 (14-30)19 (14-28)
 AST (IU/L)23 (19-28)22 (19-27)21 (18-26)21 (18-25)
 ALP (IU/L)75 (62-89)73 (61-86)71 (59-85)70 (59-85)
γ-GT (IU/L)27 (17-44)25 (16-42)22 (15-36)21 (15-34)
 BUN (mmol/L)5.0 (4.3-5.9)5.1 (4.3-6.0)5.0 (4.3-5.8)4.9 (4.2-5.7)
 Creatinine (μmol/L)80 (71-88)80 (68-88)78 (68-88)78 (66-88)
 Uric acid (μmol/L)359 (299-425)358 (292-422)348 (285-411)340 (279-406)
 FBG (mmol/L)5.10 (4.76-5.50)5.04 (4.75-5.46)5.05 (4.73-5.40)5.01 (4.73-5.38)
 Triglyceride (mmol/L)1.48 (1.02-2.23)1.37 (0.94-2.09)1.27 (0.88-1.88)1.25 (0.89-1.79)
 Total cholesterol (mmol/L)4.98 (4.41-5.68)5.04 (4.38-5.67)5.00 (4.39-5.64)4.96 (4.37-5.60)0.312
 HDL-C (mmol/L)1.17 (1.02-1.36)1.20 (1.05-1.41)1.22 (1.06-1.43)1.23 (1.06-1.42)
 LDL-C (mmol/L)3.24 (2.80-3.74)3.25 (2.75-3.77)3.23 (2.76-3.73)3.21 (2.74-3.70)0.225

Data are shown as the median and interquartile range (IQR) or percentages. values were from analysis of the Kruskal-Wallis test or Pearson’s test. A two-tailed value of less than 0.05 was considered statistically significant. NAFLD: nonalcoholic fatty liver disease; BMI: body mass index; ALT: alanine aminotransferase; AST: aspartate aminotransferase; ALP: alkaline phosphatase; γ-GT: γ-glutamyl transpeptidase; TBA: total bile acids; GCA: glycocholic acid; BUN: blood urea nitrogen; FBG: fasting blood glucose; LDL-C: low-density lipoprotein cholesterol; HDL-C: high-density lipoprotein cholesterol; Q1: the GCA-to-TBA ; Q2: the GCA-to-TBA ratio 0.75-1.00; Q3: the GCA-to-TBA ratio 1.00-1.34; Q4: the GCA-to-TBA .