Table 1 Kappa coefficients of the items in the low back pain questionnaire for adolescents (n = 40)
Question | Kappa value | Comment |
|---|---|---|
Q1: Lifetime prevalence | 0.72 | Substantial |
Q3: Prevalence of Recurrent NSLBP | 0.51 | Moderate |
Q4: LBP Frequency | 0.73 | Substantial |
Q5: LBP Duration | 0.96 | Perfect |
Q7: Sciatica | 0.32 | Fair |
Q8: Period prevalence | 0.48 | Moderate |
Q10: Medical Treatment | 0.56 | Moderate |
Q12: School Absenteeism | 0.88 | Perfect |
Q13: School-bag | 1 | Perfect |
Q14: School-bag weight perception | 0.74 | Substantial |
Q15: Duration of carrying school-bag | 0.86 | Perfect |
Q16: Method of carrying school-bag | 0.83 | Perfect |
Q17: Sports participation | 1 | Perfect |
Q19: Sports duration | 1 | Perfect |
Q20: Sedentary time | 0.60 | Perfect |
Q21: Smoking status | 0.83 | Perfect |