Fig 1.
Flow diagram depicting participants recruited to the present study from the third visit of the ROAD study.
Fig 2.
Illustration of the dural sac cross-sectional area measurement technique.
Table 1.
Characteristics of participants.
Table 2.
Distribution of cross sectional area of dura (mm2).
Table 3.
Association between low back pain and the minimum cross-sectional area in each logistic regression model.
Fig 3.
Receiver operating characteristic (ROC) curves for the multiple logistic regression models for low back pain.
The area under the curve (AUC) for the ROC curves for models 1, 2, and 3 were 0.59, 0.60, and 0.66, respectively. The AUC for model 3 was significantly greater than the AUCs for models 1 and 2.