ALSPAC_Children_6months
Population
ALSPAC - Children
The population consists of any resulting child from all pregnant women residents in the old administrative county of Avon if their estimated delivery date fell between 1 April 1991 and 31 December 1992.
Data Collection Event
ALSPAC - Children - 6 months
Information was collected through the use of questionnaires and registries.
Some questions were child based and some were child completed. A questionnaire specifically collected information about the baby’s health and behaviour, relationship with the baby and reactions of other children to the baby. In addition, information was collected about physical health, mental and cognitive issues, diet and nutrition, environmental characteristics, social characteristics, parenting, and other characteristics. Information about current health and symptoms, doctor visits, hospital admissions, surgical procedures, accidents and injuries, medications, immunizations, allergies, eczema and asthma, diarrhea or gastrointestinal problems, convulsions or seizures, stools, hearing, vision problems, other health problems, sleeping, crying, teeth/dental problems, and tics/twitches was collected as well as diet and nutrition information including breastfeeding or bottle feeding, food frequency, feeding difficulties, and eating behaviours, pacifier use and thumb sucking. Environmental exposures information such as passive smoking and sleeping environment, as well as social information about children in household and siblings, and parenting information was also collected. Anthropometry measures were collected in a self-reported manner.
Amongst mental and cognitive issues information about development and temperament was collected.
Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).
Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.