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Table 2 Selected characteristics of study participants for studies included in combined analysis of NASG, participants in most severe shock n = 1,229

From: Combined analysis of the non-pneumatic anti-shock garment on mortality from hypovolemic shock secondary to obstetric hemorrhage

 

Miller 2006

Miller 2010

Magwali 2012

Miller 2012

Maknikar 2012b

 

Control

NASG

Control

NASG

Control

NASG

Control

NASG

Control

NASG

 

n = 18

n = 35

n = 183

n = 327

n = 190

n = 162

n = 150

n = 42

n = 53

n = 69

Demographics

          

Age mean (SD)

25.9 (5.3)

26.9 (5.8)

30.1 (6.5)

30.2 (6.3)

28.3 (5.8)

28.0 (6.0)

26.7 (6.9)

26.8 (7.0)

  

Parity mean (SD)

2.6 (2.5)

1.5 (1.8)

4.8 (3.1)

4.4 (3.3)

2.4 (1.8)

2.4 (1.9)

2.3 (2.2)

2.3 (2.0)

  

Weeks pregnant a, mean (SD)

38.4 (3.1)

39.2 (1.2)

37.7 (2.8)

37.1 (3.2)

36.7 (3.7)

37.4 (3.4)

36.3 (2.7)

36.4 (3.0)

  

Definitive diagnosis

          

Uterine atony

7 (38.9)

12 (34.3)

57 (31.2)

79 (24.2)

28 (14.7)

31 (19.1)

20 (13.3)

6 (14.3)

  

Complications of abortion

3 (16.7)

9 (25.7)

12 (6.6)

36 (11.0)

67 (35.3)

50 (30.9)

31 (20.7)

14 (33.3)

  

Placenta previa

1 (5.6)

0 (0.0)

11 (6.0)

22 (6.7)

4 (2.1)

6 (3.7)

10 (6.7)

0 (0.0)

  

Placental abruption

2 (11.1)

0 (0.0)

19 (10.4)

49 (15.0)

13 (6.8)

13 (8.0)

6 (4.0)

2 (4.8)

  

Ectopic pregnancy

0 (0.0)

9 (25.7)

17 (9.3)

26 (8.0)

14 (7.4)

2 (1.2)

4 (2.7)

5 (11.9)

  

Molar pregnancy

0 (0.0)

1 (2.9)

1 (0.6)

6 (1.8)

1 (0.5)

0 (0.0)

2 (1.3)

0 (0.0)

  

Ruptured uterus

2 (11.1)

1 (2.9)

20 (10.9)

19 (5.8)

14 (7.4)

7 (4.3)

2 (1.3)

2 (4.8)

  

Placenta accreta

0 (0.0)

0 (0.0)

4 (2.2)

5 (1.5)

1 (0.5)

1 (0.6)

2 (1.3)

1 (2.4)

  

Lacerations/Genital trauma

1 (5.6)

1 (2.9)

4 (2.2)

24 (7.3)

10 (5.3)

6 (3.7)

31 (20.7)

3 (7.1)

  

Retained placenta

0 (0.0)

1 (2.9)

38 (20.8)

56 (17.1)

37 (19.5)

44 (27.2)

39 (26.0)

9 (21.4)

  

Other

2 (11.1)

1 (2.9)

0 (0.0)

3 (0.9)

1 (0.5)

1 (0.6)

3 (2.0)

0 (0.0)

  

Condition on study entry

          

Est. blood loss, median (IQR)

1500 (750)

1500 (1150)

1500 (1000)

1500 (800)

1000 (800)

1000 (500)

700 (500)

800 (700)

  

Mean arterial pressure < 60

17 (94.4)

30 (93.8)

181 (98.9)

321 (98.2)

188 (99.0)

158 (97.5)

150 (100.0)

42 (100.0)

  

Unconscious

2 (11.1)

6 (18.2)

27 (15.1)

41 (12.9)

6 (3.2)

12 (7.4)

1 (0.7)

1 (2.4)

53 (100.0)

69 (100.0)

Outcomes

          

Blood loss median (IQR)

555 (700)

250 (350)

360 (500)

55 (175)

600 (520)

150 (200)

480 (480)

430 (370)

  

Mortality

1 (5.6)

0 (0.0)

34 (18.6)

26 (8.0)

10 (5.3)

2 (1.2)

4 (2.7)

3 (7.1)

31 (58.5)

19 (27.5)

  1. a Excluding weeks pregnant ≤ 24 weeks.
  2. b Some data not available from Maknikar 2012.
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BMC Pregnancy and Childbirth

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