Table 1—

Baseline characteristics: age, anthropometrics, body fat distribution, and CT fat by HOMA-IR tertiles

HOMA-IR tertiles
I 0.33–2.85II 2.86–4.89III 4.92–17.79Total 0.33–17.79
n747374221
Age (years)57 (46–65)57 (48–65)57 (47–66)57 (46–66)
BMI (kg/m2)26.6 (17.9–38.4)28.1 (18.7–34.7)32.2 (21.8–43.3)29.0 (17.9–43.3)
Waist (cm)95.1 (76.2–119.4)99.4 (80.5–120.2)110.6 (86.4–134.4)101.7 (76.2–134.4)
WHR0.94 (0.79–1.08)0.97 (0.85–1.11)1.01 (0.87–1.15)0.97 (0.79–1.15)
Mean arterial pressure (mmHg)95 (79–115)99 (80–129)100 (77–127)98 (77–129)
Fasting insulin (pmol/l)52.0 (8.4–79.2)93.2 (61.2–147.0)187.5 (111.6–366.6)111.0 (8.4–366.6)
Fasting C-peptide (nmol/l)0.43 (0.17–0.96)0.64 (0.33–1.06)1.04 (0.40–1.82)0.7 (0.17–1.82)
Glucose (mmol/l)5 (3.7–6.2)5.4 (4.3–6.6)5.6 (4.6–6.8)5.3 (3.7–6.8)
BAT (nmol/l)8.4 (1.7–22.9)7.8 (3.4–16.5)7.5 (3.8–25.3)7.9 (1.7–25.3)
FT (nmol/l)0.35 (0.06–0.98)0.31 (0.15–0.6)0.31 (0.14–1.18)0.32 (0.06–1.18)
TT (mmol/l)20.6 (2.7–58.5)17.9 (6.8–36.4)15.4 (5.6–43.2)18.0 (2.7–58.5)
SHBG (nmol/l)48.5 (18.4–95.1)43.4 (13.6–81.2)34.6 (9–77.4)42.2 (9–95.1)
CT-TAF (cm2)344 (70–726)404 (208–676)536 (277–921)428 (70–921)
CT-SAF (cm2)226 (48–494)242 (115–445)317 (151–596)262 (48–596)
CT-IAF (cm2)118 (21–245)162 (71–395)219 (79–483)166 (21–483)
DEXA-TBF (kg)19.8 (6.3–35.8)22.6 (11.5–35.5)29.2 (14.1–49.4)23.9 (6.3–49.4)
DEXA-TBF (%)24 (10–34)26 (17–35)30 (17–43)27 (10–43)
Dietary fat intake scale29 (14–40)31 (16–44)31 (20–42)30 (14–44)
Leisure physical activity
 MET*37 (0–101)36 (0–170)29 (0–153)34 (0–170)
 Sweat2.2 (1–3)2.0 (1–3)2.0 (1–3)2.1 (1–3)
  • Data are means (minimum-maximum).

  • *

    * METs were calculated as followed: (strenuous activity frequency × 9) + (moderate activity frequency × 5) + (mild activity frequency × 3).

  • Coded as “1” (never/rare), “2” (sometimes), or “3” (often). BAT, bioavailable testosterone; FT, free testosterone; IAF, intra-abdominal fat; MET, metabolic equivalent; SAF, subcutaneous abdominal fat; TAF, total abdominal fat; TBF, total body fat; TT, total testosterone.