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Table 1 Comparison of clinical characteristics between the wrestling athletes and controls

From: Significance of serum branched-chain amino acid to tyrosine ratio measurement in athletes with high skeletal muscle mass

  All participants Control participants Wrestling athletes p
  (N = 111) (N = 41) (N = 70)  
Weight (kg) 66.6 (62.3–74.2) 64.2 (58.1–68.4) 68.4 (63.6–75.9) 0.012
BMI (kg/m2) 23.7 (22.2–25.6) 21.7 (20.1–24.0) 24.2 (23.2–26.0) < 0.001
SMI (kg/m2) 11.9 (11.0–12.5) 10.5 (9.9–11.5) 12.4 (11.9–13.0) < 0.001
FMI (kg/m2) 2.7 (2.3–3.7) 3.2 (2.3–4.9) 2.6 (2.2–3.5) 0.024
Albumin (g/dL) 4.5 (4.3–4.8) 4.8 (4.7–5.0) 4.3 (4.2–4.5) < 0.001
Transthyretin (mg/dL) 29.8 (26.5–33.0) 29.8 (25.3–32.2) 29.8 (27.1–33.1) 0.790
Transferrin (mg/dL) 248 (228–268) 255 (235–272) 247 (222–264) 0.071
FT3 (pg/mL) 3.22 (3.09–3.39) 3.18 (3.04–3.34) 3.23 (3.10–3.41) 0.115
FT4 (ng/dL) 1.04 (0.98–1.10) 1.02 (0.98–1.10) 1.05 (0.97–1.11) 0.318
TSH (μIU/mL) 1.78 (1.24–2.25) 1.84 (1.19–2.12) 1.67 (1.36–2.30) 0.647
BTR 6.49 (5.80–7.58) 7.62 (6.83–8.61) 6.07 (5.51–6.64) < 0.001
  1. Data is expressed as the median (25th–75th percentile)
  2. Mann-Whitney U test was used to compare the wrestling athletes with the control participants
  3. BMI Body mass index; SMI Skeletal muscle index; FMI Fat mass index; FT3 Free 3,5,3′-triiodothyronine; FT4 Free thyroxine; TSH Thyrotropin; BTR Branched-chain amino acid to tyrosine ratio