Table 3. TDT analysis for 12 SNPs in and around BMP4 in Maryland trios.

SNP name	Position	Minor allele	MAF (%)	FAM*	T	NT	OR (95%CI)	P Value	relative difference ratio
rs17563	54417522	1	47.7	36	26	24	1.08 (0.62, 1.89)	0.7789	-
s2071047	54418411	1	43.5	37	25	24	1.04 (0.60, 1.82)	0.8817	5.23
rs2761880	54418986	1	3.9	5	4	2	2.00 (0.37, 10.92)	0.4178	85.39
rs10130587	54419110	1	40.8	33	23	22	1.05 (0.58, 1.88)	0.8837	-
rs2855532	54419965	1	46.1	38	19	33	0.58 (0.33, 1.01)	0.0515	−7.21
rs2761884	54421052	1	43.7	38	22	31	0.71 (0.41, 1.23)	0.2188	−3.07
rs2855530	54421917	2	48.1	41	35	24	1.46 (0.87, 2.45)	0.1530	-
rs2738265	54422399	2	45.1	35	20	29	0.69 (0.39, 1.22)	0.1954	−6.62
rs762643	54422767	1	41.0	35	18	30	0.60 (0.33, 1.08)	0.0833	−1.41
rs762642	54423053	2	39.3	39	36	21	1.71 (1.00, 2.94)	0.0469	9.24
rs2761887	54425052	2	44.7	33	18	28	0.64 (0.36, 1.16)	0.1442	−3.71
rs2032423	54425147	1	45.1	37	22	28	0.79 (0.45, 1.37)	0.3994	−4.88

FAM*: number of informative families.

T: number of transmitted alleles, NT: number of un-transmitted alleles.

Relative difference ratio: Relative difference ratio for MAFs between Asian and Maryland parents.