Additional studies, particularly well-designed case-control studies among very young children and prospective birth cohort studies, are needed.
Similarly, a prospective birth cohort study of more than 1,000 children from New Zealand found no effect of BMI on AHR [23].
The aim of the present study was to describe the changes in the frequency and intensity of migrainous headaches and analgesics use in female migraineurs with and without self-reported MM from a large and representative prospective birth cohort.
A prospective birth cohort study from Brazil concluded that breastfeeding is associated with improved performance in intelligence tests 30 years later, and might have an important effect in real life, by increasing educational attainment and income in adulthood [9].
Design Prospective birth cohort study.
A prospective birth cohort study.
Prospective birth cohort study Tertiary obstetric hospital.
CCAAPS is an ongoing prospective birth cohort study.
In a prospective birth cohort, 117 children were classified according to the Asthma Predictive Index.
Our retrospective method is limited in comparison to true prospective birth cohort studies [ 33, 34].
We selected 506 newborns from a population-based prospective birth cohort in the Netherlands.
