Effects of greenness on preterm birth: A national longitudinal study of 3.7 million singleton births
Graphical abstract
Exposure to greenness may lead to a wide range of beneficial health outcomes. However, the effects of greenness on preterm birth (PTB) are inconsistent, and limited studies have focused on the subcategories of PTB. A total of 3,751,672 singleton births from a national birth cohort in mainland China were included in this study. Greenness was estimated using the satellite-based Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) within 500-m and 1,000-m buffers around participants' addresses.
