Ethnicity or environment: effects of migration on ovarian reserve among Bangladeshi women in the United Kingdom

Objective To assess whether the quality of early childhood environments among different groups of Bangladeshi women, including migrants to the United Kingdom (UK), contributes to variation in ovarian reserve and the rate of reproductive aging in later life. Design Cross-sectional study. Setting Not applicable. Patient(s) A total of 179 healthy women volunteers aged 35-59 years were divided into four groups: [1] 36 Bangladeshis living in Sylhet, Bangladesh; [2] 53 Bangladeshis who migrated to the UK as adults; [3] 40 Bangladeshis who migrated to the UK as children aged 0-16 years; and [4] a reference group of 50 women of European origin living in London. Intervention(s) None. Main outcome measure(s) Levels of serum antimüllerian hormone, inhibin B, FSH, and E2, and…