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Table 3 Differences in clinical characteristics according to disease complexities

From: Outcomes of women with congenital heart disease admitted to acute-care hospitals for delivery in Japan: a retrospective cohort study using nationwide Japanese diagnosis procedure combination database

Total N= 201

n (%) or median (inter-quartile range)

Simple

n = 103

Moderate

n = 69

Great

n = 29

P value

Age (years)

32 (28–35)

32 (28–35)

32 (28–34)

0.825

Height (cm)

156 (153–160)

157 (151–161)

157 (154–160)

0.642

Weight (kg)

58.9 (52.2–64.9)

57.0 (52.3–62.4)

58.1 (51.2–63.5)

0.645

Past or current smokers

11 (10.7%)

4 (5.8%)

1 (3.4%)

0.291

Ambulance

4 (3.9%)

2 (2.9%)

0 (0.0%)

0.554

Emergent hospitalization

9 (8.7%)

8 (11.6%)

3 (10.3%)

0.826

Referral from other hospital

79 (76.7%)

53 (76.8%)

22 (75.9%)

0.994

Weeks of gestation

    

 On admission (weeks)

38 (36–39)

37 (33–38)

36 (34–37)

0.004

 At delivery (weeks)

38 (37–39)

37 (35–38)

37(36–38)

0.028

Delivery Methods

   

0.748

 Vaginal

33 (32.0%)

20 (29.0%)

8 (27.6%)

 

 Cesarean section (emergent)

29 (28.2%)

16 (23.2%)

6 (20.7%)

 

 Cesarean section (elective)

41 (39.8%)

33 (47.8%)

15 (51.7%)

 

Distance between home and hospital (km)

8.6 (4.3–13.5)

10.0 (6.4–21.8)

14.9 (12.3–19.9)

0.004

Types of hospitals

   

0.013

 University hospitals

43 (41.7%)

36 (52.2%)

21 (72.4%)

 

 Other hospitals

60 (58.3%)

33 (47.8%)

8 (27.6%)

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