==== Developmental Milestones ==== Information on infant developmental milestones was obtained from mothers when survey members were aged two years. Some of these provide markers of neurodevelopment, i.e. gross motor skills (age of first sitting, standing and walking unaided) and early language (age at articulating words other than names for parents - “mum”, “dad”, “nan”). Other developmental milestones obtained at this age were age at weaning from breast or bottle, and age at first teething. Later milestones such as the age the study member began learning to read were recorded in [[questionnaires:1953|1953]]. \\ Attendance at nursery was recorded in [[questionnaires:1948|1948]] and [[questionnaires:1950|1950]]. \\ When study members were aged six years, mothers were asked about bladder and bowel training. Repeat questions were used on bedwetting in [[questionnaires:1950|1950]] (4yrs), [[questionnaires:1952|1952]] (6 yrs), [[questionnaires:1954|1954]] (6 yrs) and [[questionnaires:1955|1955]]. Trajectories of childhood enuresis were derived and these were used in a number of publications((For example see Croudace et al., 2003 [[http://aje.oxfordjournals.org/content/157/9/834.full]] American Journal of Epidemiology 157;9, 834-842)) Full details on puberty can be found [[Puberty | here]] \\ ---- === Obtaining the standard developmental milestones variables === * You can obtain a list of the standard topic variables to use in an NSHD data sharing request by selecting the link below.\\ \\ [[https://skylark.ucl.ac.uk/Sparrow/search/html/keyword/mrepo:topics:developmentalmilestones | HTML version of the standard variables to view]] \\ \\