Life-Course Relationship between Socioeconomic Circumstances and Timing of First Birth in a Birth Cohort.
This study examines the influence of socioeconomic circumstances in childhood (childhood SES) and adulthood (adult SES) on timing of first birth by age 37.A longitudinal study of a 1972-1973 New Zealand birth cohort collected information on socioeconomic characteristics from age 3-32 and reproductive histories at 21, 26, 32 and 38; Tanktops informa