Background Low participation at recruitment to the Danish National Birth Cohort (DNBC) has
raised concern about non-participation bias. Objective To study the socioeconomic pattern …

Background: Socioeconomic differences in perinatal health decreased in Finland in the late
1990s. Whether the decreasing socioeconomic differences in perinatal health observed in …

Study objective: Several studies on differences in infant outcome by socioeconomic position
have been done, but these have usually been based on ad hoc data linkages. The aim of …

Introduction: The Danish Medical Birth Register has been used extensively in conjunction
with other national registers to examine different aspects of socioeconomic differences in …

Aim: To describe differences in life style variables according to socioeconomic groupings
and to analyse the association between birth weight, stillbirth and congenital malformation …

OBJECTIVES: This study investigated social variation in birth outcome in the Czech
Republic after the political changes of 1989. METHODS: Routinely collected records on …

Social class and ethnicity are important risk factors for small-for-gestational-age and preterm
delivery in many countries. This study was performed to assess whether this is also the case …

Background: It is well known that the time from conception to early childhood has importance
for health conditions that reach into later stages of life. Recent research supports this view …

Background The aim of this study was to examine the association between socioeconomic
status and risk of infant death in Norway from 1967 to 1998. Methods Information from the …

Background To investigate social variation in birthweight and length of gestation in Estonia
in the period of transition to a democracy and market economy. Methods All live births …