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

BMC Pediatrics

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

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
Weekly except during Christmas and summer holidays	SMS-Track (automated text messaging)(App.8)	·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
When required	Clinical examination	·Musculoskeletal pain and injuries

ISSN: 1471-2431