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Table 2 Radiographic and Laboratory Findings of COVID-19 Patients with Different BMI

From: High body mass index is a significant risk factor for the progression and prognosis of imported COVID-19: a multicenter, retrospective cohort study

Characteristics BMI < 24(Group A)
(N = 268)
BMI ≥ 24(Group B)
(N = 187)
P value
Blood routine
 Leukocytes (×109/L; normal range 4–10) 4.50(3.68–6.00) 4.95(3.91–6.04) 0.076
   > 10 × 109/L 5(1.9%) 3(1.6%) 1.000
   < 4 × 109/L 92(34.3%) 51(27.3%) 0.111
 Neutrophils (× 109/L; normal range 2–7) 2.78(2.02–3.96) 3.10(2.41–4.10) 0.286
   > 7 × 109/L 12(4.5%) 6(3.2%) 0.494
   < 2 × 109/L 64(23.9%) 24(12.8%) 0.003
 Lymphocytes (×109/L;normal range 0.8–4) 1.18(0.90–1. 60) 1.20(0.90–1.60) 0.880
   < 0.8 × 109/L 40(14.9%) 25(13.4%) 0.641
 Hemoglobin (g/L, normal range: male 131–172, female 113–151) 133.52(16.11) 143.23(16.11) < 0.001
 Platelet (×109/L; normal range:100–300) 191.00(145.00–228.00) 181.50(154.00–218.50) 0.528
   < 100 × 109/L 9(3.4%) 5(2.7%) 0.677
Coagulation function
 International normalized ration (normal range 0.85–1.15) 1.01(0.97–1.08) 1.01(0.97–1.08) 0.951
Blood biochemistry
 Albumin (g/L; normal range 40.0–55.0) 41.13(4.08) 41.61(4.12) 0.827
   < 40.0 g/L 91(34.0%) 77(41.2%) 0.116
 Alanine aminotransferase (U/L; normal range: male 9–50, female 7–40) 18.40(13.00–27.00) 27.00(18.25–42.75) < 0.001
   > 50 (male), > 40(female) U/L 26(9.7%) 40(21.4%) < 0.001
 Aspartate aminotransferase (U/L; normal range: male 15–40, female 15–35) 23.00(18.00–29.20) 27.00(21.00–35.38) < 0.001
   > 40 (male), > 35(female) U/L 27(10.1%) 34(18.2%) 0.013
 Total bilirubin (umol/L; normal range 0–26.0) 8.90(6.00–12.75) 10.45(7.40–14.40) 0.019
   > 26.0 umol/L 7(2.6%) 6(3.2%) 0.707
 Serum potassium (mmol/L; normal range 3.5–5.3) 3.85(3.62–4.15) 3.80(3.60–4.08) 0.259
   < 3.5 mmol/L 42(15.7%) 35(18.7%) 0.394
 Serum sodium (mmol/L; normal range 137.0–147.0) 138.60(136.9–140.5) 137.80(135.6–139.7) 0.005
   < 137.0 mmol/L 72(26.9%) 71(38.0%) 0.012
 Blood urea nitrogen (mmol/L; normal range 3.1–8.0) 3.54(2.85–4.47) 3.75(2.99–4.60) 0.135
 Serum creatinine (umol/L; normal range male: 57–97, female 41–73) 61.00(52.00–73.00) 68.25(56.00–80.20) < 0.001
 Creatine kinase (U/L; normal range: male40–200, female 50–130)) 63.00(44.00–92.00) 76.00(51.50–99.00) 0.004
   > 200 (male), > 130(female) U/L 29(10.8%) 23(12.3%) 0.626
   Lactate dehydrogenase (U/L; normal range 120–250) 202.00(162.00–251.00) 212.50(170.50–276.00) 0.022
   > 250 U/L 64(23.9%) 58(31.0%) 0.091
 Glucose (mmol/L; normal range 3.9–6.1) 5.58(4.90–6.70) 6.29(5.36–7.85) < 0.001
Infection-related biomarkers
 C-reactive protein (mg/L; normal range 0–8) 6.10(1.60–14.67) 10.50(4.00–24.20) < 0.001
Chest x-ray/CT findings    0.053
 Normal 21(7.8%) 11(5.9%)  
 Unilateral pneumonia 61(22.8%) 25(13.4%)  
 Bilateral pneumonia 117(43.7%) 94(50.3%)  
 Multiple mottling and ground-glass opacity 69(25.7%) 57(30.5%)  
  1. Data are presented as medians (interquartile ranges, IQR), n (%) and mean (SD)
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