“…Firstly, the SES measures are unlikely to capture all social risk factors related to teenage motherhood, since age at childbirth, in and of itself, is a measure of social risk. 13 , 14 The relationship between deprivation at the neighbourhood, household, and individual level is complex, particularly for teenage mothers who may live with relatives. For Sweden, we had access only to SES quintiles for the population of mothers included in the cohort; this may have diluted the relationship between SES and teenage pregnancy, as mothers (especially teenagers) are more deprived than the general population.…”