. Author manuscript; available in PMC: 2018 Apr 12.

Published in final edited form as: Am J Obstet Gynecol. 2017 May 15;217(3):369.e1–369.e9. doi: 10.1016/j.ajog.2017.05.019

TABLE 6.

Association between spontaneous preterm birth and 17-alpha hydroxyprogesterone caproate concentrations with progesterone receptor single nucleotide polymorphisms with measures of relative quality of each model

PR SNP	LR	P value^a	R²	AIC
Base model^b	9.07	.11	0.034	319
rs578029	9.98	.13	0.037	320
rs471767	11.27	.08	0.042	318
rs666553	10.60	.10	0.039	315
rs503362	11.26	.08	0.042	315
rs500760	9.82	.13	0.036	321

AIC, Akaike information criterion; LR, likelihood ratio; PR, progesterone receptor; SNP, single nucleotide polymorphism.

Model P values;

Model predicting spontaneous preterm birth includes log 17-alpha hydroxyprogesterone caproate, race, body mass index, and treatment group.

Bustos et al. Association of CYP3A and PR SNPs and 17 OHP-C. Am J Obstet Gynecol 2017.