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

PMC full text:

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

Copyright/License ►Request permission to reuse: Copyright © The Author(s). 2017
Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

Table 6

Sensitivity analyses on missing data

	Primary data				v1 data				v2 data
	Median number of episodes (IQR)	Mean number of episodes (SD)	Median length of episodes (IQR)	Mean length of episodes (SD)	Median number of episodes (IQR)	Mean number of episodes (SD)	Median length of episodes (IQR)	Mean length of episodes (SD)	Median number of episodes (IQR)	Mean number of episodes (SD)	Median length of episodes (IQR)	Mean length of episodes (SD)
Study year 1	1 (1–2)	1.9 (1.4)	1 (1–3)	2.6 (2.9)	1 (1–2)	1.9 (1.4)	1 (1–3)	2.6 (2.9)	1 (1–2)	2.0 (1.5)	1 (1–3)	2.7 (3.0)
Study year 2	1 (1–2)	1.9 (1.6)	1 (1–3)	2.9 (3.3)	1 (1–2)	1.9 (1.6)	1 (1–3)	2.9 (3.3)	1 (1–2)	2.0 (1.7)	1 (1–3)	2.9 (3.3)
Study year 3	1 (1–2.5)	2.0 (1.4)	1 (1–3)	3.0 (3.3)	1 (1–3)	2.0 (1.4)	2 (1–3)	3.0 (3.3)	1 (1–3)	2.1 (1.5)	2 (1–4)	3.0 (3.3)