Surrounding greenness and pregnancy outcomes in four Spanish birth cohorts

摘要

Objectives: We investigated the association between surrounding greenness and birth weight, head circumference, and gestational age at delivery.Methods: This study was based on 2,393 singleton live births from four Spanish birth cohorts (Asturias, Gipuzkoa, Sabadell, and Valencia) located in two regions of the Iberian Peninsula with distinct climates and vegetation patterns (2003-2008). We defined surrounding greenness as average of satellite-based Normalized Difference Vegetation Index (NDVI) (Landsat 4-5 TM data at 30mX30m resolution) during 2007 in buffers of 100 m, 250 m, and 500 m around each maternal place of residence.