Table 1.

Number of spontaneous PTB cases and HRS controls in the presented GWAS.

Population	Sex	PTB Cases	HRS Controls
EUR (n = 9,890)	Female	121	5,575
	Male	139	4,055
	Total	260	9,630
AFR (n = 1,874)	Female	103	1,078
	Male	87	606
	Total	190	1,684
AMR (n = 1,847)	Female	337	672
	Male	408	430
	Total	745	1,102
EAS (n = 249)	Female	72	77
	Male	59	41
	Total	131	118
SAS (n = 59)	Female	7	17
	Male	16	19
	Total	23	36