. 2014 Dec 30;9(12):e116346. doi: 10.1371/journal.pone.0116346

Table 7. Association between risk of placental abruption and weighted genetic risk score (WGRS) computed from SNPs selected in multivariable analyses using repeated 10-fold cross-validations.

Weighted Genetic Risk Score (GRS)
	1st Quartile	2^nd Quartile	3^rd Quartile	4^th Quartile	p-value
	Genome-wide Association Analysis^*
OR ^**	1	2.53	3.78	8.40	<0.001
(95% CI)	(Ref.)	(1.47–4.71)	(2.2–6.4)	(5.8–12.56)

*Cross-validated WGRS computed from SNPs selected from multivariable analyses.

**Cross-validated odds ratios (and 95% confidence intervals) from logistic regression models adjusted for sex, and population admixture, p-values associated to chi-square global test.