Table 4

 Predictors of multiple injuries

VariableUnivariateMultivariate
p Valuep ValueOR95% CI
*Tae kwon do v Shotokan karate only.
†Two way interaction between age and experience (p  =  0.003).
Age: ⩾18 years v <18 years.
Experience: ⩾3 years v <3 years.
Hours/week: >3 hours v ⩽3 hours.
Rank: Black belt v lower belts.
Age<0.001†
Sex0.73NS
Experience0.008†
Hours/week<0.00010.0032.951.60 to 5.24
Rank0.14NS
Style<0.0010.002*3.701.86 to 7.35