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Table 1 The baseline clinical characteristics and laboratory parameters of the patients

From: The effects of a low international normalized ratio on thromboembolic and bleeding complications in patients with mechanical mitral valve replacement

Variables Group 1 n = 34 Group 2 n = 49 Group 3 n = 52 *F *p
Age, years 55.9 ± 12.9 49.9 ± 13.2 50.1 ± 14.2 2.428 0.092
Gender, male (%) 23 (67.6) 33 (67.3) 30 (57.7) - 0.516
Atrial fibrillation, n (%) 17 (50) 28 (57.1) 26 (50) - 0.727
Hypertension, n (%) 16 (47.1) 14 (28.6) 19 (36.5) - 0.227
Diabetes mellitus, n (%) 8 (23.5) 5 (10.2) 4 (7.7) - 0.079
Smoking, n (%) 5 (20) 15 (32.6) 11 (21.6) - 0.360
Neurological dysfunction, n (%) 3 (8.8) 3 (6.1) 2 (3.8) - 0.632
Follow-up time, months 33.7 ± 29.0 40.4 ± 32.9 42.8 ± 31.5 0.884 0.416
Mean LVEF, % 53.3 ± 9.8 53.2 ± 8.8 54.0 ± 9.2 0.778 0.461
Left atrium, cm 5.2 ± 0.8 5.8 ± 1.0 5.5 ± 1.0 3.727 0.027
sPAP, mmHg 40.8 ± 12.7 43.8 ± 14.7 42.2 ± 12.5 0.506 0.604
Hemoglobin, g/dL 13.6 ± 1.5 12.7 ± 1.6 12.3 ± 1.3 7.899 0.001
WBC, ×103/μL 7.8 ± 2.7 8.5 ± 2.2 7.7 ± 1.9 2.098 0.127
Platelet, ×103/μL 196.91 ± 68.1 218.98 ± 77.7 231.77 ± 78.4 2.181 0.117
Creatinine, mg/dL 1.24 ± 1.3 1.39 ± 1.5 0.9 ± 0.2 2.201 0.115
Mean INR level 1.8 ± 0.1 2.2 ± 0.1 2.8 ± 0.3 232.346 <0.001
  1. INR: International Normalized Ratio, LVEF: Left Ventricle Ejection Fraction, sPAP: Systolic Pulmonary Arterial Pressure, WBC: White Blood Cell.
  2. *Chi-square and ANOVA with posthoc Tukey test.