Table 1

 Descriptive information on the study population (n = 2187)

Characteristics
*Defined according to the Alcohol Use Disorders Identification Test.33 Cut-off score for hazardous consumption ⩾8 points.
Age, mean years (SD)42.7 (10.8)
Sex, n (%)
    Men1923 (88)
    Women264 (12)
Education, n (%)
    Compulsory school681 (31)
    Secondary school1269 (59)
    University education219 (10)
Employment grade, n (%)
    Blue-collar1639 (75)
    White-collar538 (25)
Work schedule, n (%)
    Daytime1350 (62)
    Shift work820 (38)
Citizenship at birth, n (%)
    Swedish1944 (90)
    Other229 (10)
Household characteristics, n (%)
    Single395 (18)
    Single, with children at home96 (4)
    Married731 (34)
    Married, with children at home955 (44)
Body mass index, mean (SD)26.2 (3.8)
Neck or back pain during the previous year, n (%)
    No pain823 (38)
    Neck pain211 (10)
    Back pain453 (21)
    Both neck and back pain700 (32)
Neck or back pain at the time of the baseline measurement, n (%)
    Yes577 (26)
    No1606 (74)
Alcohol use, hazardous consumption, n (%)*401 (19)