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Table 2 Comparison of preoperative baseline, biochemical and cardiac function indexes between the two groups

From: Effect of the COVID-19 pandemic on complications and mortality of patients with cardiac surgery

Characteristics Control group (n = 292) Observation group (n = 130) P-value
Age, years 55 (44–62) 54 (47–61) 0.935
Countryside (%) 187 (64.04) 82 (63.08) 0.849
Men (%)c 184 (63.01) 89 (68.46) 0.280
Shaanxi Province (%) 182 (62.33) 105 (81.77) 0.000
Smoking (%) 100 (34.25) 58 (44.62) 0.042
Alcoholism (%) 16 (5.48) 19 (14.62) 0.002
Distance (km) 132 (35.5–237) 142 (42.25–237.5) 0.778
Family company (%) 223 (76.37) 84 (64.62) 0.012
BMI (kg/m2) 23.15 (20.43–25.70) 24.14 (21.25–25.95) 0.130
History of hypertension (%) 77 (26.37) 43 (33.08) 0.159
History of diabetes (%) 32 (10.96) 10 (7.69) 0.301
History of COPD (%) 9 (3.08) 3 (2.31) 0.659
History of hyperlipidemia (%) 40 (13.70) 27 (20.77) 0.067
PAH (%) 59 (20.21) 18 (13.85) 0.118
Arteriography (%) 118 (40.41) 79 (60.77) 0.000
EuroSCORE (score) 2 (0–5) 6.5 (2–9) 0.000
Emergency admission (%) 62 (21.23) 65 (50.00) 0.000
Severe patients (%) 80 (27.40) 71 (54.62) 0.000
Disease time, years 3.96 ± 10.19 2.54 ± 6.25 0.144
HGB (g/L) 132 (122–142) 134 (121–143) 0.881
Eosinophil count (109/L) 0.07 (0.04–0.14) 0.06 (0.02–0.14) 0.323
Leucocyte count (109/L) 6.14 (4.86–8.08) 6.59 (4.95–9.62) 0.029
Lymphocyte count (109/L) 1.48 (1.04–1.97) 1.33 (0.96–1.72) 0.057
ALB (g/L) 40.50 (37.50–43.88) 37.15 (34.83–40.03) 0.000
Globulin (U/ml) 24.50 (21.03–27.90) 25.10 (22.08–27.93) 0.216
Partial pressure of oxygen (mmHg) 85.15 (74.60–93.55) 80.30 (71.15–89.38) 0.007
Pro-BNP (ng/L) 542.40 (113.45–1776.75) 857.50 (241.00–2222.50) 0.018
LVEF (%) 59 (50–64) 59 (51–63) 0.828