Spinal pain in Danish school children – how often and how long? The CHAMPS Study-DK

doi:10.1186/s12891-017-1424-5

PMC full text:

BMC Musculoskelet Disord. 2017; 18: 67.

Published online 2017 Mar 27. doi: 10.1186/s12891-017-1424-5

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Fig. 1

a Participant flow CHAMPS 2 2011–2014. *Dropins: change of school or wish to enter the project. **Dropouts: change of school or personal reasons. b Participant flow SMS track. *Children participating less than maximum possible number of weeks minus one. **Children answering less than 50% of participation time