Collected Dataset / BLS 4y IQ Only Dataset

BLS 4y IQ Only Dataset

Networks -
Variables -

Associated study

Acronym BEST/BLS
Name Bavarian Longitudinal Study Cohort
Study design Cohort
Number of very preterm (VPT) and/or very low birthweight (VLBW) births included in cohort (live & still births) 682
  • Germany


Bavarian Longitudinal Study Cohort

The BLS started off as a geographically whole population study of infants admitted to neonatal special care in South Bavaria (Germany). The children and their families were recruited from 16 children’s hospitals, including 153 neonatal units.

Data Collection Event

56 Month Follow Up

At 56 months, participant height, weight and head circumference were measured along with neurological and clinical examination to assess cerebral palsy, and visual and hearing impairment.

Cognitive assessments included the Columbia Mental Maturity Scale (CMMS) to assess general reasoning ability, Beery Developmental Test of Visual-Motor Integration - Revised (Beery VMI) to assess visual-motor integration, the Aktiver Wortschatztest to assess verbal competence, and the Logopädisher Sprachverständnis Test (LSVTA) to assess language comprehension.

During an interview, parents of the participants completed the Family Adversity Index (FAI) and Psychosocial Stress Index (PSI) and answered questions about the participants' sleep problems. The assessor also provided ratings of parent behavior, parent-child interactions and child behavior, based on observation of the dyad.