Table 2.

Demographic characterization of the study cohort.

Variable	Female	Male	Total
	n = 1,608	n = 504	n = 2,112
	76.14%	23.86%
Age, mean (±SD)	59.0 (±13.9)	57.9 (±14.4)	58.7 (±14.1)
Percentage of older adults (>65)	32.59%	31.35%	32.29%
Type of insurance, n (%)
Social security (contributive)	1,259 (78.3)	392 (77.8)	1651 (78.2)
Subsidized by the State	45 (2.8)	15 (3.0)	60 (2.8)
Particular	303 (18.8)	96 (19.0)	399 (18.9)
Laboral risk insurance	1 (0.1)	1 (0.2)	2 (0.1)
Diagnosis ICD-10, n (%)
Unspecified pain	941 (58.5)	360 (71.4)	1,301 (61.6)
Diseases of the
musculoskeletal system and
connective tissue	471 (29.3)	89 (17.7)	560 (26.5)
Nervous system diseases	145 (9.0)	40 (7.9)	185 (8.8)
Other	51 (3.2)	15 (3.0)	66 (3.1)