Table 5.

ROC curve analysis of pre-pregnancy ultrasound diameter and “increase” in fibroid diameter at the post-delivery ultrasound with respect to ongoing breastfeeding.

	AUC	95% CI	Cut-off (mm)	Sensitivity	95% CI	Specificity	95% CI	p
Study population (n = 180)	0.7	0.6–0.8	>26	59.4	40.6–76.3	75.7	67.9–82.3	<0.01
Breastfeeding (n = 100)	0.7	0.6–0.8	>32	60.0	26.2–87.8	87.8	79.2–93.7	0.05
No breastfeeding (n = 80)	0.7	0.5–0.8	>26	59.1	36.4–79.3	70.7	57.3–81.9	0.02