Abandonos en el seguimiento de recién nacidos de muy bajo peso antes de los 2 años

The telephone interview allowed the clinical status of 60% of VLWN lost to follow up to be determined. Sequelae rate, mainly mild, was higher in the lost-to- follow-up group. Some unfavourable social, economical and cultural factors could have influenced the interruption. It is advisable to develop strategies to prevent loss in the follow up.