Analysis of characteristic features in ultrasound diagnosis of fetal limb body wall complex during 11-13+6 weeks

Table 1 General information of pregnant women

No.	Age	Gestational age in wk	Pregnancy history, G/P/A/L	Embryo transplantation	Down syndrome screening status
1	29	13	G1P0	No	Unchecked
2	28	13+6	G2P0A1	Yes	Unchecked
3	25	13+5	G1P0	No	Low-risk
4	21	12+3	G1P0	No	Low-risk
5	23	12+4	G1P0	No	Low-risk
6	26	12	G2P0A1	No	Low-risk
7	30	11+2	G2P0A1	No	Low-risk
8	29	13	G1P0	No	Low-risk
9	38	11+3	G1P0	Yes	Low-risk
10	25	13+2	G1P0	No	Low-risk
11	28	12+6	G2P0A1	No	Low-risk
12	24	11+6	G1P0	No	Low-risk
13	32	12+3	G2P1L1	No	Low-risk
14	26	12+4	G1P0	No	Unchecked
15	39	13+6	G1P0	Yes	Unchecked
16	31	13+5	G2P0A1	Yes	Unchecked
17	21	13+2	G1P0	No	Low-risk
18	26	13	G1P0	No	Low-risk

G: Gestation; P: Production; A: Abortion; L: Live.