Rural to urban migration and changes in cardiovascular risk factors in Tanzania: a prospective cohort study.

Background: High levels of rural to urban migration are a feature of most African countries. Our aim was to investigate changes, and their determinants, in cardiovascular risk factors on rural to urban migration in Tanzania.

Methods: Men and women (15 to 59 years) intending to migrate from Morogoro rural region to Dar es Salaam for at least 6 months were identified.