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Table 1 Maternal characteristics of symptomatic and asymptomatic COVID-19 patients

From: Clinical characteristics of pregnant women with COVID-19 in Japan: a nationwide questionnaire survey

 

Symptomatic patients (n = 58)

Asymptomatic patients (n = 14)

P-value

Maternal age

 Median (interquartile range)

31 (27–36)

32 (25–33)

0.41

 Under 20

0 (0%)

0 (0%)

 > 0.99

 20–29

20 (34.5%)

6 (42.9%)

0.56

 30–39

33 (56.9%)

8 (57.1%)

0.99

 over 40

5 (8.6%)

0 (0%)

0.58

Approach for diagnosis

 Symptom

57 (98.3%)

0 (0%)

 < 0.001

 Contact with confirmed or suspected patients

1 (1.7%)

12 (85.7%)

 < 0.001

 Universal screening

0 (0%)

2 (14.3%)

0.04

Pregnancy period at diagnosis

 1st trimester

12 (20.7%)

3 (21.4%)

 > 0.99

 2nd trimester

28 (48.3%)

4 (28.6%)

0.18

 3rd trimester

15 (25.9%)

5 (35.7%)

0.51

 Postpartum

3 (5.2%)

2 (14.3%)

0.25

Epidemiological history

 Familial infection

33 (56.9%)

8 (57.1%)

0.99

 Community-acquired

5 (8.6%)

3 (21.4%)

0.18

 Visiting and staying in infected areas

4 (6.9%)

0 (0%)

0.58

 Nosocomial infection

2 (3.4%)

1 (7.1%)

0.48

 Workplace infection

1 (1.7%)

2 (14.3%)

0.10

 Unknown

13 (22.4%)

0 (0%)

0.06

Comorbidities

 Gestational diabetes

5 (8.6%)

0 (0%)

0.58

 Preeclampsia

1 (1.7%)

0 (0%)

 > 0.99

 Asthma

3 (5.2%)

0 (0%)

 > 0.99

Course of pregnancya

 Pregnancy ongoing

29 (50.0%)

7 (50.0%)

 > 0.99

 Delivery

21 (36.2%)

5 (35.7%)

0.97

 Delivery during infection

9 (15.5%)

3 (21.4%)

0.69

 Spontaneous abortion

2 (3.4%)

0 (0%)

 > 0.99

 Induced abortion

1 (1.7%)

0 (0%)

 > 0.99

Prognosis of mother

 Recovered without subsequent complication

57 (98.3%)

14 (100%)

 > 0.99

 Death

1 (1.7%)

0 (0%)

 > 0.99

  1. Data indicate n (%)
  2. a Excluding 1 maternal death, 1 case of missing data, and 5 cases of puerperium diagnosis