Table 4.

Correlations between presenteeism, pain, and depression among employed CLBP patients

	Spearman's rho with presenteeism	P value
Overall work impairment %	0.990a	<0.001
Severity of lower back pain	0.267a	<0.001
Severity of pain in the prior week (based on NRS)	0.297a	<0.001
Current severity of pain (based on NRS)	0.245a	<0.001
Frequency of problems with pain	0.115	0.077
Sites of pain in addition to LBP (number, 0–6)	0.239a	0.002
Depression severity based on PHQ-9	0.342a	<0.001

^aCorrelation is significant at the 0.01 level (2-tailed)