Table 1.

Clinical background in the present study

SFD group: n=3,379
		Gestational weeks		Birth weight		IUFD	ND
Block	n	Mean±SD	Median (range)	Mean±SD	Median (range)
A	396	38.2±2.4	39(23-41)	2224±422	2326(410-2857)	19 (4.8%)	0 (0)
D	1,352	38.3±2.3	39(22-41)	2206±397	2293(210-2858)	32 (2.4%)	8 (0.6%)
E	1,270	38.6±2.1	39(22-41)	2364±331	2435(286-2950)	10 (0.8%)	3 (0.2%)
G	18	32.4±6.0	31.5(24-40)	927±705	656(175-2016)	10 (55.6%)	1 (12.5%)
H	333	37.5±4.0	39(22-41)	2103±581	2285(208-2818)	22 (6.6%)	3 (1.0%)
I	10	35.8±5.2	36.5(23-41)	1897±720	2036(366-2594)	1 (10%)	0 (0)
AFD group: n=81,143
		Gestational weeks		Birth weight		IUFD	ND
Block	n	Mean±SD	Median (range)	Mean±SD	Median (range)
A	4,474	38.8±1.7	39(22-41)	2843±322	2860(466-3772)	23 (0.5%)	0 (0)
B	3,883	38.6±1.9	39(22-41)	3115±357	3168(542-3882)	15 (0.4%)	2 (0.05%)
D	1,427	38.9±1.7	39(23-41)	2652±265	2694(541-3240)	5 (0.4%)	2 (0.14%)
E	63,933	38.7±2.0	39(22-41)	2961±386	2999(332-4170)	143(0.2%)	45 (0.1%)
F	1,849	38.4±1.7	39(23-40)	3252±316	3300(612-3844)	2 (0.1%)	0 (0)
H	2,257	38.9±1.6	39(22-41)	2797±279	2830(425-3478)	7 (0.3%)	1 (0.04%)
I	3,320	38.7±2.0	39(22-41)	3089±382	3142(434-4148)	18 (0.5%)	4 (0.12%)
HFD group: n=8,512
		Gestational weeks		Birth weight		IUFD	ND
Block	n	Mean±SD	Median (range)	Mean±SD	Median (range)
A	32	39.3±1.2	40(36-41)	3675±238	3640(3162-4050)	0 (0)	0 (0)
B	804	38.9±1.9	39(23-41)	3610±388	3650(890-5154)	3 (0.4%)	0 (0)
E	4,353	38.7±1.9	39(22-41)	3556±362	3600(556-4650)	9 (0.2%)	1 (0.02%)
F	2,707	38.9±1.6	39(25-41)	3691±344	3694(861-5288)	2 (0.1%)	3 (0.1%)
I	616	38.9±1.5	39(32-41)	3630±289	3654(2336-4328)	1 (0.2%)	0 (0)

IUFD: intrauterine fetal death, ND: neonatal death