Potential prevention of stillbirth caused by placental abruption: a regional population-based study in Japan

Figures & data

Figure 1. Overview flow chart of this study.

Table 1. Perinatal background of stillbirth with or without placental abruption.

Maternal characteristics	All n = 350	Abruption n = 32	Non-abruption n = 318	p-value
Age (year)	32(28–35)	34(30–35)	31(28–35)	0.23
Gestational age (weeks)	32(25–37)	35(32–37)	32(24–37)	<0.001
Birth weight (g)	1280(524–2332)	2236(1638–2622)	1105(493–2308)	<0.001
Parity, primi	172(49)	14(44)	158(50)	0.52
HDP	18(5)	6(19)	12(4)	<0.001
FGR	111(32)	9(28)	102(32)	0.63

HDP: hypertensive disorders of pregnancy; FGR: fetal growth restriction.

Data are expressed as the number (%) or inter-quartile range.

Table 2. Judgment of stillbirth prevention.

Assessment	Abruption, n = 30*	Non-abruption, n = 307**	p-value
Preventable	9 (30)	25 (8)	< 0.001
Unpreventable	21 (70)	282 (92)

Excluding 2* and 11** cases that could not be judged due to lack of sufficient information.

Data are shown as the number (%).

Table 3. Recommendations for preventing stillbirths caused by placental abruption.

Recommendations	n
Improvement of the diagnosis or medical management	5
Appropriate management of HDP
Careful management of chronic placental abruption
Accurate diagnosis of placental abruption
Improvement of fetal monitoring	2
Appropriate fetal heart monitoring
Perinatal transport system	2
Development of an emergency maternal transport system
Total	9

Data availability statement

Data available on request from the corresponding author.