ALSPAC_Children_54months
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 - 54 months
Information was collected through the use of questionnaires, and registries.
Some questions were child based and some were child completed. Questionnaire specifically collected information about health and behaviour and how child gets along with other children. In addition, information was collected about physical health, mental and cognitive issues, diet and nutrition, environmental characteristics, childcare and schooling, substance use, and activities. Information about accidents and injuries, medications, allergies, eczema and asthma, diarrhea or gastrointestinal problems, hearing, vision, speech, growth problems, other health problems, bed wetting/ bladder problems, teeth/dental problems, and tics/twitches, diet and nutrition information including food frequency, feeding difficulties, eating behaviours, dietary supplements, special diet and food allergies was collected. Anthropometry measures were collected in a self-reported manner. Environmental exposures information such as contact with pets, sleeping environment, and hygiene was also collected.
Amongst mental and cognitive issues information about parental concerns over development was collected.
Childcare and schooling information such as who, where and when children are cared for, school attendance, transport to school, school enjoyment, activities such as book reading, out of school activities, outings, indoor/outdoor activities, were assessed as well as alcohol use.
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.