Although birth cohort studies can stand on their own, there are a number of different types of sub-studies that can add value to the overall project. These can be summarised within four main categories: (A) more detailed observations of relatively small subgroups aimed at describing mechanisms and processes; (B) nested case–control studies; (C) use of detailed observations to validate data collection by questionnaire or interview; (D) randomised controlled trials. For each category we give examples of ways in which they have been employed in current pregnancy birth cohort studies.
|Translated title of the contribution||Nesting sub-studies and randomised controlled trials within birth cohort studies|
|Pages (from-to)||63 - 72|
|Number of pages||10|
|Journal||Paediatric and Perinatal Epidemiology|
|Publication status||Published - Jul 2009|