How old in years only or year component of question asking age in years and months. See example.
Age in months
How old with response in months only or month component of question asking age in months and weeks. Commonly seen in questionnaires for birth and pre-school life stages asking how old baby is with response expressed in only months rather than years. See example
How old with response in years and months. Answer is multiple compound response with ‘Age’ for years component response domain and ‘Months’ for months component of questionresponse domain. See example
How old with response in months and weeks. Answer is compound response with 'Age in months' for months response domain and 'Weeks' for weeks response domain
Physical measurement Physical measurement