Table 2 Univariable linear regression analysis to determine the relationship with loge-transformed testosterone.
Variables | Coefficient (β) | 95% CI | P value | |
|---|---|---|---|---|
LB | UB | |||
Age, year | 0.001 | − 0.001 | 0.004 | 0.310 |
Albumin, g/dL | − 0.046 | − 0.115 | 0.023 | 0.193 |
Hemoglobin A1c, % | − 0.060 | − 0.086 | − 0.034 | < 0.001 |
CRP (≥ 2.0 mg/dL vs. < 2.0 mg/dL) | − 0.381 | − 0.572 | − 0.191 | < 0.001 |
Metabolic components | ||||
Waist circumference ≥ 90 cm (yes vs. no) | − 0.117 | − 0.166 | − 0.068 | < 0.001 |
Triglyceride ≥ 150 mg/dL (yes vs. no) | − 0.070 | − 0.122 | − 0.019 | 0.008 |
High-density lipoprotein cholesterol < 40 mg/dL or receiving drug treatment (yes vs. no) | − 0.117 | − 0.168 | − 0.066 | < 0.001 |
Systolic blood pressure ≥ 130/85 mmHg or receiving drug treatment (yes vs. no) | − 0.078 | − 0.126 | − 0.030 | 0.002 |
Fasting blood glucose ≥ 100 mg/dL or receiving drug treatment (yes vs. no) | − 0.110 | − 0.159 | − 0.061 | < 0.001 |
Abdominal body composition from CT scan | ||||
Subcutaneous fat index, cm2/(kg/m2) | − 0.048 | − 0.059 | − 0.031 | < 0.001 |
Visceral fat index, cm2/(kg/m2) | − 0.026 | − 0.037 | − 0.016 | < 0.001 |
Loge (Intermuscular fat index), cm2/(kg/m2) | − 0.011 | − 0.040 | 0.018 | 0.464 |
Total abdominal muscle index, cm2/(kg/m2) | 0.110 | 0.077 | 0.142 | < 0.001 |
Normal-attenuation muscle index, cm2/(kg/m2) | 0.076 | 0.049 | 0.104 | < 0.001 |
Loge (Low-attenuation muscle index), cm2/(kg/m2) | 0.013 | − 0.061 | 0.086 | 0.737 |
