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Table 6 Data from the epidemiologic literature on back pain in boys and girls (age included)

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

  Balague et al.[[1]] Brattberg et al.[[25]] Taimela et al.[[6]] Hakala et al.[[18]] Watson et al.[[12]]
Country Switzerland Sweden Finland Finland England
Design Cross Sectional Cross sectional + follow up Cross sectional Cross sect. + follow up Cross sectional
Study sample Schoolchildren in primary and secondary school- one school district Pupils from 26 urban schools Pupils from 45 different public schools Population register. All Finns born on adjacent dates in summer (1985-9, 1993-7) Pupils from secondary schools; state + private, urban + rural
Response rate 99% 87% 82% 77% 92% (LBP)
Valid sample size 1666 1245/ 471 1171 62677 1376 (LBP)
Data collection Questionnaire Questionnaire Questionnaire Questionnaire Questionnaire
Age group 7-17(mean 12) 8, 11, 13, 17 7, 10, 14, 16 12,14,16,18(12.6, 14.6, 16.6, 18.6) 11-14
Definition of back pain LBP, BP (=all spinal pain) Do you often have back pain? LBP interfering with school/leisure activities + recurrent LBP past 12 months Back or neck pain during the past half a year LBP for one day or longer in the past month
Gender Girls > Boys (+BP ++LBP) Girls > Boys all age groups. Significant among the 13 and 17-year-old pupils No general difference. Girls > boys in recurrent LBP reporting Girls > boys No interaction between sex but increasing trend was seen in girls - boys U shaped curve Girls > Boys
Age (prevalence increase) >13 Trend of more long-lasting BP in older age groups. Especially among girls Recurrent LBP increases > 14, 16 Prevalence increased with age Increase with age in girls and boys