Table 1.
Instrument properties used for non-specific LBP.
Table 2.
Frequency of sickness absence in each sociodemographic groupa.
Table 3.
Mean values for the different clinical variables as a function of the presence (yes) or absence (no) of sickness absence status.
Table 4.
Linear multiple regression of sickness absence duration variable with individual clinical variables controlled by education and occupational confounding factors.
Table 5.
Relationship between low back disability and sociodemographic variables.
Comparison of means.
Table 6.
Multiple linear regression between the declared LBP disability and the scales of kinesiophobia, fear avoidance behavior, pain intensity and catastrophizing.