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Table 1.

Clinical characteristics and serum TMAO levels.

control group (n = 33) NDKD group (n = 73) DKD group (n = 35) F/X²/Z P
Age (year) 52.00 ± 12.69 51.58 ± 12.52 55.86 ± 14.17 1.356 0.261
Male 60.6% (20/33) 65.8% (48/73) 77.1% (27/35) 2.294 0.318
BMI (kg/m²) 22.18 ± 2.83 25.31 ± 3.42a 23.86 ± 3.99 9.651 0.000d
Diabetes duration (year) NA 5.0 (1.0, 10) 10 (4.25,16.0)b −2.752 0.006d
Hypertension (%) NA 32.9% (24/73) 51.4% (18/35)b 4.210 0.040b
BUN (mmol/L) 4.6 (3.93, 5.55) 5.11 (4.24, 6.07) 5.83 (4.93, 7.30)a,b 9.892 0.007e
UA (μmol/L) 313 (282, 413.5) 305 (235, 358.5) 370 (309, 407)b 8.525 0.014b
FPG (mmol/L) 5.39 (5.10, 5.80) 8.0 (6.68, 10.13)a 7.85 (6.52, 9.55)a 46.249 0.000d
HbA1c (%) NA 9.2 (7.0, 11.05) 9.3 (7.0,10.3) -0.420 0.674
SCR (μmol/L) 70.0 (56.95, 78.1) 66 (55.1, 76.0) 75.9 (63.0, 96.0)b 9.690 0.008c
eGFR (mL/min•1.73 m²) 102.32 ± 22.31 113.14 ± 27.38 95.99 ± 41.64b 4.10 0.029b
TMAO (μmol/L) 0.25 (0.16, 0.46) 0.30 (0.17, 0.48) 0.44 (0.25, 1.07)a,b 11.789 0.003c

vs control group, aP < 0.05, vs NDKD group,bP < 0.05 vs NDKD group, cP < 0.01, vs NDKD group dP < 0.001.