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Table 5 Data from the epidemiologic literature on "one week" prevalence of back pain (including LBP region)

From: Back pain in children surveyed with weekly text messages - a 2.5 year prospective school cohort study

  Balague et al.[[1]] Jones et al.[[21]] Sato et al.[[22]]
Country Switzerland England Japan
Design Cross sectional Cross sectional Cross sectional
Study sample Schoolchildren in primary and secondary school (one school district) Schoolchildren in three school districts Elementary and junior high schoolchildren in Niigata City
Response rate 99% 93% 79,8%
Valid sample size 1666 500 34423
Data collection Questionnaire Questionnaire Questionnaire
Age group 7-17 (mean 12) 10-16 9-15
Definition of back pain BP (=all spinal pain) LBP Any LBP now
Recall period Previous week Previous week Now
Overall - prevalence week/now BP (7-17y) LBP LBP
16% 10-13 y: Boys, Girls 9-10 y: 3%
  10-11y: 6%, 9% 10-11 y: 4%
11-12 y: 9%, 10,5% 11-12 y: 6%
12-13 y: 11%, 13% 12-13 y: 12%
13-14 y: 13%, 17% 13-14 y: 17%
14-15 y: 18%, 21% 14-15 y: 15%
15-16 y: 23%, 21%