Table 1

Approach to data analysis


Recall period


Lifetime
12 month
1 month
1 week

Disease information
Prevalence
Prevalence
Prevalence
Prevalence

Age at initial onset




Initial incident



Putative associated factors
Year level of study
Year level of study
Year level of study
Year level of study

Age
Age
Age
Age

Gender
Gender
Gender
Gender

Occupational exposure




Sport exposure




Length of study
Length of study
Length of study
Length of study


Height




Weight




Level of fitness
Level of fitness
Level of fitness



Educational exposures
Educational exposures

Nyland and Grimmer BMC Musculoskeletal Disorders 2003 4:22   doi:10.1186/1471-2474-4-22