Fig. 1From: Endogenous oxytocin levels in extracted saliva elevates during breastfeeding correlated with lower postpartum anxiety in primiparous mothersSalivary OT level changes across the breastfeeding cycle. Left: Extracted method. Right: Unextracted method. Red: PD2. Blue: PD4. *P < 0.05 (vs. baseline). Data are expressed as the mean ± standard error. PD2, postpartum day 2; PD4, postpartum day 4Back to article page