Increase of breast-feeding in the past decade in Greece, but still low uptake: cross-sectional studies in 2007 and 2017.

Objective: To estimate breast-feeding prevalence in Greece in 2007 and 2017, compare breast-feeding indicators and maternity hospital practices between these years, and investigate breast-feeding determinants.

Design: Two national cross-sectional studies (2007 and 2017) using systematic cluster sampling of babies with the same sampling design, data collection and analysis methodology.

Setting: Telephone interview with babies' mothers or fathers.