Heterogeneous effect of gestational weight gain on birth weight: quantile regression analysis from a population-based screening.

Purpose: Classical regression models might give an incomplete picture of the associations between predictors and outcomes. We investigated associations between gestational weight gain (GWG) and birth weight along the entire birth weight distribution with quantile regression and estimated effects of hypothetical prevention strategies.

Methods: The GWG-birth weight association was analyzed using quantile and classical regression models on data from a population-based gestational diabetes screening (n = 4760) at the Szent Imre Teaching Hospital in Budapest, Hungary (2002-2005).

Maternal glycemia and risk of large-for-gestational-age babies in a population-based screening.

Objective: Gestational diabetes is a risk factor for large-for-gestational-age (LGA) newborns, but many LGA babies are born to mothers with normal glucose tolerance. We aimed to clarify the association of maternal glycemia across the whole distribution with birth weight and risk of LGA births in mothers with normal glucose tolerance.

Research Design And Methods: We undertook a population-based gestational diabetes screening in an urban area of Hungary in 2002-2005.