TABLE 3.

Chronic low back pain phenotype profiling.

	Cluster 1	Cluster 2
Disability level	Low	High
Pain intensity	Low	High
Pain frequency	Transient	Constant
Work ability	High	Low
Work environment	Sedentary	Active
Education level	High	Low
Psychological impact	Minor	Major
Symptoms	Localized	Widespread
Functionality	Normal	Impaired
Occupational functioning	High	Low