Figure 2. Associations between Breastfeeding Duration and Snoring outcomes. CAPS cohort N = 450.

Comparing the prevalence of different parent reported sleep disordered breathing at age 8 against the amount of breastfeeding recorded during the first year of life to see whether breastfeeding has a dose-response relationship with protection against later snoring or sleep apnea. P-values indicate significance of a linear trend and the error bars are 95% confidence limits for the proportions.