Table 1.

Background data on individuals without and with chronic musculoskeletal complaints (subdivided to chronic widespread and non-widespread MSCs)

Variables	No chronic MSCs	Chronic MSCs	Chronic widespread MSCs	Chronic non-widespread MSCs
n = 39,520	19,297	20,223	2,318	17,905
Gender, female (%)	48.9	57.4	56.8	57.5
Mean age (SD)	55.6 (14.8)	57.7 (13.9)	55.3 (12.6)	58.0 (14.0)
Years of education (>= 13 years) (%)	12.6	8.7	8.8	8.7
Mean BMI (SD)	24.7 (3.5)	25.2 (3.8)	25.2 (3.9)	25.2 (3.8)
Current smoking (%)	30.4	34.7	38.4	34.2