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. Author manuscript; available in PMC: 2019 May 1.
Published in final edited form as: Am J Obstet Gynecol. 2018 Feb 2;218(5):521.e1–521.e12. doi: 10.1016/j.ajog.2018.01.031

Figure 2.

Figure 2

Ten-fold cross-validated receiver operating characteristic (ROC) curves for the final parsimonious models for prediction of SDB at the first study visit (transformed BMI at V1, maternal age at V1, and frequent snoring at V1; AUC=0.870), SDB at the third study visit (transformed BMI at V3, maternal age at V3, and frequent snoring at V3; AUC=0.838), and new onset SDB at the third study visit (also transformed BMI at V3, maternal age at V3, and frequent snoring at V3; AUC=0.809). BMI was transformed using a Box-Cox power transformation with λ = −1.25 (see methods). Frequent snoring was defined as snoring ≥3 days per week during the 4 weeks prior to the visit.