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Table 1 Basic characteristic of patients with severe H1N1and moderate H1N1

From: Dynamic variations in the peripheral blood lymphocyte subgroups of patients with 2009 pandemic H1N1 swine-origin influenza A virus infection

Variable severe H1N1 (n= 36) moderate H1N1 (n= 40) P-value
Age, mean ± SD, years* 40.1 ±18.6 26.1 ± 8.0 0.006
Male/Female distribution, N (%) 20/25(55%/45%) 20/20(50%/50%) 0.653
Prodromal symptoms, N (%)    
Fever(T > 38.5) 28(78) 16(40) 0.001
Cough 26(72) 28(70) 1.000
Dyspnea 13(36) 0 <0.001
Gastrointestinal 4(11) 3(7) 0.702
Myalgia 23(64) 10(25) 0.001
Co-morbidities, N (%)    
COPD 12(33) 0 <0.001
Coronary artery disease 4(11) 0 <0.001
Diabetes mellitus 5(14) 2(5) 0.246
Hypertension 5(14) 2(5) 0.246
Pregnancy 4(11) 1(2.5) 0.131
Others (Hypothyroidism, Immunosuppression, Transplant) 3(8) 0 0.102
Changes in lung imaging examination, N (%) 20(55) 3(7) <0.001
Patients using Oseltamivir, N (%) 36(100) 40(100) 1.000
Oseltamivir treatment time, mean ± SD, (days)* 8.55 ± 3.39 3.60 ± 1.00 <0.001
Patients using combined glucocorticoid, N (%) 19(53) 0 <0.001
The number of people using the ventilato, N (%) 5(14) 0 <0.001
Average stay, mean ± SD, days* 13.71 ± 4.77 3.37 ± 1.06 <0.001
Death toll, N (%) 1(3) 0 0.474
  1. Note: SD = standard deviation; COPD = chronic obstructive pulmonary disease. * Date are reported as mean ± SD; Date are expressed as no. (%).