Table 4.
Changes in LSS-positive/negative and RDQ(1)
| LSS in 2004 |
RDQ score (0–24) |
LSS in 2005 |
RDQ score (0–24) |
p-value |
|---|---|---|---|---|
| (+) | 7.2 ± 5.7 | (+) | 8.3 ± 6.2 | 0.0823 |
| (−) | 4.2 ± 5.0 | <0.0001 | ||
| (−) | 2.6 ± 4.0 | (+) | 4.9 ± 5.4 | <0.0001 |
| (−) | 2.4 ± 4.1 | 0.1861 |
Notes: Values are presented as mean ± SD. The RDQ score improved with an improvement from LSS-positive in 2004 to LSS-negative in 2005. Similarly, the occurrence of LSS-positive in 2005 from LSS-negative in 2004 increased with worsening of the RDQ score.
Abbreviations: LSS, lumbar spinal stenosis; RDQ, Roland–Morris Disability Questionnaire; SD, standard deviation.