Retrospective Cohort Study
Copyright ©The Author(s) 2015.
World J Hepatol. Nov 8, 2015; 7(25): 2610-2618
Published online Nov 8, 2015. doi: 10.4254/wjh.v7.i25.2610
Table 1 Characteristics of patients with nonalcoholic fatty liver disease, divided according to nonalcoholic fatty liver disease without type 2 diabetes mellitus and nonalcoholic fatty liver disease with type 2 diabetes mellitus (mean ± SD)
ParameterAll patients (n = 235)NAFLD (without T2DM) (n = 158)NAFLD (with T2DM) (n = 77)P value
Age (yr)45.3 ± 11.943.0 ± 12.249.9 ± 9.8< 0.01
Gender (male/female)91/14469/8922/550.02
Race (% Caucasian)65.163.967.50.9
BMI (kg/m2)37.6 ± 11.535.9 ± 10.641.0 ± 12.6< 0.01
Hypertension, n (%)114 (48.1)59 (37.3)55 (71.4)< 0.01
Dyslipidemia, n (%)139 (68.8)82 (61.2)57 (83.8)< 0.01
Metabolic syndrome, n (%)115 (53.7)52 (36.4)63 (88.7)< 0.01
Abnormal LFT’s as an indication of liver biopsy, n (%)159 (67.6)117 (74.0)42 (54.5)0.02
Platelets257.5 ± 73.5262.6 ± 67.7247.4 ± 83.30.15
INR0.99 ± 0.160.97 ± 0.101.02 ± 0.230.03
Protein (g/dL)7.4 ± 0.727.4 ± 0.737.3 ± 0.700.12
Albumin (g/dL)4.3 ± 0.54.3 ± 0.54.2 ± 0.460.06
AST (U/L)49.8 ± 34.550.4 ± 38.448.3 ± 24.80.6
ALT (U/L)72.6 ± 58.579.2 ± 65.459.2 ± 380.01
Bilirubin (mg/dL)0.67 ± 0.40.68 ± 0.40.62 ± 0.30.3
Alkaline Phosphate96.7 ± 61.894.9 ± 68.2100.1 ± 46.90.5
Total cholesterol (mg/dL)200.2 ± 47.3200.9 ± 45.4198.8 ± 50.90.8
HDL cholesterol (mg/dL)44.3 ± 11.844.2 ± 12.044.6 ± 11.70.9
Triglycerides (mg/dL)211.4 ± 119.9209.7 ± 127.7214.4 ± 105.90.8
LDL cholesterol (mg/dL)118.9 ± 41.0120.5 ± 41.3116.4 ± 40.80.6
Fasting glucose (mg/dL)125.6 ± 55.5102.9 ± 28.3167.0 ± 67.8< 0.01
HbA1c6.93 ± 2.095.83 ± 1.118.09 ± 2.26< 0.01
Iron (μg/dL)82.6 ± 38.789.3 ± 40.871.3 ± 32.0< 0.01
Total iron binding capacity (μg/dL)322.4 ± 72.3317.16 ± 71.8333.0 ± 72.90.2
Ferritin (ng/mL)258.2 ± 306.0281 ± 323.1223.0 ± 276.70.3
AST/ALT0.836 ± 0.4320.781 ± 0.4340.947 ± 0.41< 0.01
FIB-4 index1.26 ± 1.011.06 ± 0.771.65 ± 1.28< 0.01
APRI0.581 ± 0.4710.549 ± 0.4580.643 ± 0.4930.16
Table 2 Characteristics of patients with nonalcoholic fatty liver disease, divided according to nonalcoholic steatohepatitis and steatosis (mean + SD)
ParameterAll patients (n = 235)NASHSteatosisP value
Age (yr)45.3 + 11.945.9 + 12.443.8 + 10.40.2
Gender (male/female)91/14467/10124/430.6
Race (% caucasian)65.164.965.70.1
BMI (kg/m2)37.7 + 11.537 + 10.639.4 + 13.70.17
Hypertension, n (%)114 (48.5)82 + 48.832 + 63.91
Dyslipidemia, n (%)139 (68.8)100 (70.9)39 (63.9)0.3
Metabolic syndrome, n (%)115 + 53.767 (42.7)32 (56.1)0.08
Platelets258 + 73.5247 + 72.1283 + 71.1< 0.01
INR0.996 + 0.1621 + 0.1780.98 + 0.1120.3
Protein (g/dL)7.39 + 0.7627.39 + 0.7337.37 + 0.7140.8
Albumin (g/dL)4.27 + 0.5364.27 + 0.5554.26 + 0.4870.8
AST (U/L)49.8 + 34.554.2 + 36.338.3 + 26.1< 0.01
ALT (U/L)72.6 + 58.578.7 + 63.157 + 40.70.01
Bilirubin (mg/dL)0.668 + 0.4160.71 + 0.4560.567 + 0.2750.01
Alkaline Phosphate96.7 + 61.8100 + 70.988.3 + 28.30.1
Total cholesterol (mg/dL)200 + 47.3202 + 48.6197 + 44.50.5
HDL cholesterol (mg/dL)44.4 + 11.942.7 + 10.748.1 + 13.60.01
Triglycerides (mg/dL)211 + 120220 + 125191 + 1050.18
LDL cholesterol (mg/dL)1119 + 41121 + 41.6114 + 39.80.33
Fasting glucose (mg/dL)126 + 55.5129 + 55.9117 + 53.80.14
HbA1c6.93 + 2.097.12 + 2.196.37 + 1.690.11
Iron (μg/dL)82.6 + 38.783.8 + 40.578.6 + 31.90.52
Total iron binding capacity (μg/dL)322 + 72.3319 + 74.6335 + 63.40.31
Ferritin (ng/mL)258 + 306276 + 324201 + 2320.21
Mallory bodies50 + 21.350 + 29.80< 0.01
CAD67 + 28.950 + 29.917 + 26.20.63
Gastric bypass21 + 8.9414 + 8.337 + 10.40.61
Cirrhosis14 + 5.9614 + 8.3300.01
Steatosis1.92 + 0.8612.1 + 0.831.46 + 0.765< 0.01
Inflammation0.44 + 0.620.625 + 0.6630< 0.01
Fibrosis0.753 + 1.111.05 + 1.210< 0.01
Ballooning0.821 + 0.7121.15 + 0.5750< 0.01
NAS score3.18 + 1.693.86 + 1.451.46 + 0.765< 0.01
Table 3 Histological findings of patients with nonalcoholic fatty liver disease, divided according to nonalcoholic fatty liver disease without type 2 diabetes mellitus and nonalcoholic fatty liver disease with type 2 diabetes mellitus n (%)
ParameterAll patients (n = 235)NAFLD (without T2DM) (n = 158)NAFLD (with T2DM) (n = 77)P value
NAS score (mean ± SD)3.2 ± 1.73.0 ± 1.63.5 ± 1.70.03
Fibrosis score (mean ± SD)0.75 ± 1.10.52 ± 0.91.2 ± 1.3< 0.01
Fibrosis score< 0.01
< 2191 (81.3)139 (88.0)52 (67.5)
≥ 244 (18.7)19 (12.0)25 (32.5)
NAS score0.12
< 5179 (76.2)125 (79.1)54 (70.1)
≥ 556 (23.8)33 (20.9)23 (29.9)
NAS score0.11
< 390 (38.3)66 (41.7)24 (31.2)
≥ 3145 (61.7)92 (58.3)53 (68.8)
Steatosis0.1
< 297 (41.3)71 (44.9)26 (33.8)
≥ 2138 (58.7)87 (55.1)51 (66.2)
Ballooning< 0.01
< 2193 (82.1)137 (86.7)56 (72.7)
242 (17.9)21 (13.3)21 (27.3)
Inflammation0.4
< 2218 (92.7)148 (93.7)70 (90.9)
≥ 217 (7.3)10 (6.3)7 (9.1)
Mallory bodies50 (21.3)28 (17.7)22 (28.6)0.06
Table 4 Variables associated with nonalcoholic steatohepatitis (nonalcoholic fatty liver disease activity score ≥ 5) (multivariate analysis)
VariablesP valueOdds ratio95%CI
All patients
Presence of T2DM< 0.013.271.43-7.50
ALT ≥ 360.0293.881.15-13.1
Protein0.0451.841.01-3.35
Patients with NAFLD without T2DM
Protein0.0483.061.01-9.25
Patients with NAFLD with T2DM
ALT ≥ 360.034.211.13-15.6
Table 5 Variables associated with advanced fibrosis (multivariate analysis)
VariablesP valueOdds ratio95%CI
All patients
Presence of T2DM< 0.013.451.53-7.77
Platelet0.0250.990.99-1.0
INR< 0.01415197.7-176426
Patients with NAFLD without T2DM
Platelet0.030.990.98-0.99
INR0.0011695062.4-4607293
Patients with NAFLD with T2DM
Platelet0.0450.990.98-0.99