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Table 1 Clinical characteristics of pregnant women with COVID-19

From: Application of quantitative lung ultrasound instead of CT for monitoring COVID-19 pneumonia in pregnant women: a single-center retrospective study

Patient information All Patients (n = 39) Disease type
Mild (n = 6) Common (n = 29) Severe (n = 4) P value
Age, years 30 (27–32) 29 (27–31) 30 (27–32) 30 (28–31) 0.867
Early trimester 4 (10.3%) 1 (16.7%) 3 (10.4%) 0 0.711
Second trimester 8 (20.5%) 0 7 (24.1%) 1 (25.0%) 0.431
Third trimester 27 (69.2%) 5 (83.3%) 19 (65.5%) 3 (75.0%) 0.750
Time from illness onset to hospital admission, days 9 (7–11) 8 (6–11) 9 (7–11) 11 0.846
Signs and symptoms
 Fever, n (%) 18 (46.2%) 1 (16.7%) 13 (44.8%) 4 (100.0%) 0.027
 Cough, n (%) 13 (33.3%) 1 (16.7%) 8 (27.6%) 4 (100.0%) 0.015
 Diarrhea, n (%) 7 (18.0%) 1 (16.7%) 4 (13.8%) 2 (50.0%) 0.196
 Sore throat, n (%) 6 (15.4%) 0 4 (13.8%) 2 (50.0%) 0.139
 Fatigue, n (%) 7 (18.0%) 0 4 (13.8%) 3 (75.0%) 0.023
 Shortness of breath, n (%) 5 (12.8%) 0 2 (6.9%) 3 (75.0%) 0.005
 Chest pain/tightness, n (%) 4 (10.3%) 0 1 (3.5%) 3 (75.0%) 0.004
 No signs or symptoms 16 (41.0%) 4 (66.7%) 12 (41.4%) 0 0.134
Pregnancy complications
 Gestational hypertension, n (%) 3 (7.7%) 1 (16.7%) 2 (6.9%) 0 0.600
 Chronic nephritis, n (%) 2 (5.1%) 0 2 (6.9%) 1 (25.0%) 0.334
 Gestational diabetes mellitus, n (%) 2 (5.1%) 0 2 (6.9%) 1 (25.0%) 0.334
 Thrombocytopenia, n (%) 2 (5.1%) 0 2 (6.9%) 0 1.000
Laboratory tests
 Leucocytes increased (> 9.5 × 109/L) 12 (30.8%) 1 (16.7%) 8 (27.6%) 3 (75.0%) 0.150
 Neutrophils increased (> 6.3 × 109/L) 17 (43.6%) 2 (33.3%) 12 (41.4%) 3 (75.0%) 0.561
 Lymphocytes decreased (< 1.1 × 109/L) 21 (53.9%) 1 (16.7%) 16 (55.2%) 4 (100.0%) 0.046
 C-reactive protein increased (> 5.0 mg/L) 18 (46.2%) 2 (33.3%) 13 (44.8%) 3 (75.0%) 0.442
 Procalcitonin level increased (>  0.1 μg/L) 12 (30.8%) 1 (16.7%) 9 (31.0%) 2 (50.0%) 0.529
 Oxyhemoglobin saturation, % 96 (95–98) 98 (97–98) 96 (95–97) 92 (91–93) 0.001
 Decreased oxygen saturation (≤ 93%) 3 (7.7%) 0 0 3 (75.0%) 0.000
  1. Each value represents the median (interquartile range) or the number (%)