Clinical Study

Liver Injury Indicating Fatty Liver but Not Serologic NASH Marker Improves under Metformin Treatment in Polycystic Ovary Syndrome

Table 2

Outcome parameters at baseline and after 6-month metformin treatment for patients with PCOS who were insulin sensitive at baseline (PCOS-C), patients with IR at baseline and after treatment (PCOS-PIR),  and initially insulin resistant patients whose IR dissolved after treatment (PCOS-exIR).

PCOS-C*PCOS-exIR*PCOS-PIR*
Two-factorial ANOVA or Wilcoxon testa
BaselineAfter treatmentBaselineAfter treatmentBaselineAfter treatment

HOMA-IR >2.5 [%]05.61000100100

HOMA-IR [mmol*mU/L²]1.4 ± 0.71.1 ± 0.83.6 ± 0.91.5 ± 0.7***6.2 ± 3.04.4 ± 1.8**Time
Group
Time × Gr

Fasting insulin [µU/mL]6.3 ± 3.15.3 ± 3.315.0 ± 3.47.0 ± 2.9***25.9 ± 10.919.7 ± 7.5**Time
Group
Time × Gr

AUCI [mU*h/L]127 ± 48132 ± 55247 ± 109169 ± 76***347 ± 151356 ± 142Time
Group
Time × Gr

BMI [kg/m²]26.8 ± 6.426.6 ± 6.431.9 ± 6.929.8 ± 6.3***39.2 ± 8.438.5 ± 8.4Time
Group
Time × Gr

Body weight [kg]75.9 ± 21.175.2 ± 21.390.2 ± 21.784.4 ± 19.4***110.6 ± 24.2108.9 ± 24.0Time
Group
Time × Gr

Cholesterol [mg/dL]186 ± 28196 ± 34182 ± 32186 ± 39192 ± 34190 ± 26Time
Group
Time × Gr

LDL-cholesterol [mg/dL]102 ± 22105 ± 28106 ± 26103 ± 31117 ± 32113 ± 22Time .1,  
Group
Time × Gr

HDL-cholesterol [mg/dL]63 ± 1463 ± 1549 ± 1153 ± 1348 ± 1050 ± 11Time
Group
Time × Gr

Triglycerides [mg/dL]84 ± 48101 ± 43128 ± 70122 ± 51191 ± 217153 ± 68Time
Group
Time × Gr

AST [U/L]25 ± 2917 ± 520 ± 521 ± 621 ± 8Time
Group
Time × Gr

ALT [U/L]26 ± 1428 ± 1023 ± 9**32 ± 13Time ,
Group
Time × Gr

AST/ALT-ratio0.89 ± 0.30.86 ± 0.20.76 ± 0.20.86 ± 0.20.69 ± 0.20.61 ± 0.2Time ,
Group
Time × Gr

M30 [U/L]198 ± 91206 ± 124199 ± 108196 ± 70238 ± 211275 ± 206Time
Group
Time × Gr ,  

BARD-Score [median (25th,  75th percentile)]2 (0.25,  2.75)2 (1,  2.75)1 (1,  3)2 (1,  3)1 (1,  2.5)1 (1,  1)Time

Data were analyzed with repeated measures analysis of variance with the factors group (i.e., PCOS-C,  PCOS-IR, and PCOS-exIR) and time (i.e.,  changes from baseline to 6 months of treatment). In case of significant ANOVA time or time × group effects, post hoc paired -tests within respective PCOS groups were calculated (, and nonsignificant after Bonferroni correction). Changes in BARD-Scores from baseline to 6 months after treatment were analyzed with Wilcoxon tests within subgroups and the total sample. All results are shown as mean ± standard deviation,  unless otherwise indicated.