Table S1.

Plasma DNA tissue mapping analysis among pregnant women

Case no.	Percentage contributions of plasma DNA (%)					SNP-based fetal DNA fraction (%)	Gestational age (wk)
	Liver	T cells	B cells	Neutrophils	Placenta
1	9.7	10.8	10.2	57.2	12.1	14.0	12 6/7
2	9.0	12.9	10.1	55.3	12.7	13.9	13
3	8.1	10.1	11.7	57.0	13.2	13.6	13 1/7
4	6.6	16.6	9.0	52.5	15.3	16.1	13
5	15.8	11.1	4.6	50.3	18.2	17.1	12 6/7
6	11.8	11.5	8.2	56.1	12.5	13.1	21 3/7
7	8.9	11.3	16.9	47.6	15.3	15.2	20 6/7
8	5.7	10.7	8.2	59.6	15.9	16.4	22 2/7
9	6.9	10.5	11.4	48.3	22.9	22.3	22 1/7
10	2.7	9.2	8.6	42.5	37.0	34.3	21 1/7
11	4.2	15.2	10.4	48.5	21.6	21.0	38 1/7
12	5.2	10.0	12.5	45.6	26.7	27.0	38 3/7
13	3.2	14.4	7.2	43.7	31.5	33.0	38 1/7
14	2.7	10.9	5.1	45.9	35.5	36.8	38 2/7
15	2.3	10.6	7.1	39.0	41.0	39.5	38 3/7