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Table 1 Summary of the data collection undertaken in the CHAMPS-study DK on school-children; frequency and method of data of collection and the variables collected

From: Study protocol. The Childhood Health, Activity, and Motor Performance School Study Denmark (The CHAMPS-study DK)

FREQUENCY OF DATA COLLECTION METHOD OF DATA COLLECTION VARIABLES
At baseline Questionnaire (App.1) ·Socio-economic-status
·Previous habits and attitudes toward physical activity and diet
·Demographics
·Parental anthropometry, and more.
At baseline and twice a yr for 3 yrs, thereafter once a year Physical examination (App.2) Anthropometry of child:
·Height
·Weight
·Waist circumference
At base-line and once a year Physical examination (App.2) Blood pressure
At baseline and once a year Self-reported Tanner stage in structured interview(App.3) Pubertal stage
At baseline and once a year Physical examination (App. 4 and 5) ·Aerobic capacity
·Motor performance
·Hypermobility(according to Beghton’s criteria)[3]
Every second year MTI GTX3 accelerometer (App.6) Physical activity
Every second year DXA scan (App.7) ·Bone mineral content
·Bone mineral density
·Bone area
·Body composition
Weekly except during Christmas and summer holidays SMS-Track (automated text messaging)(App.8) ·Musculoskeletal pain
·Leisure time sports participation
When child reports pain in answer on text message question Telephone consultation and clinical examination Musculoskeletal complaints
When required Clinical examination ·Continued back pain
·Musculoskeletal pain and injuries