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Table 1 Descriptive characteristics of the study participants

From: Occupational cold exposure and symptoms of carpal tunnel syndrome – a population-based study

Variable Categories Carpal tunnel syndrome References
N % N %
Participants None 453 9.2 a 4,456 90.8 a
Gender Male 180 39.7 2,078 46.6
Female 273 60.3 2,378 53.4
Age group (years) 18–31 9 2.3 207 5.7
32–44 44 11.2 618 16.9
45–57 136 34.6 1,115 30.6
58–70 204 51.9 1,708 46.8
Body mass index (kg/m2) BMI < 18.5 6 1.4 36 0.8
18.5 ≤ BMI < 25 133 30.0 1,881 43.1
25 ≤ BMI < 30 191 43.1 1,707 39.2
BMI ≥ 30 113 25.5 736 16.9
Current daily smoking Yes 21 4.6 165 3.7
No 431 95.4 4,260 96.3
Geographical location Coastal 211 46.6 2,438 54.7
Inland 126 27.8 1,138 25.5
Alpine 116 25.6 880 19.7
Occupational group b Service and sales workers 83 18.9 518 11.9
Professionals 70 15.9 1,003 23.0
Retired 61 13.9 664 15.2
Technicians and associate professionals 44 10.0 545 12.5
Plant and machine operator 41 9.3 241 5.5
Clerical support workers 37 8.4 431 9.9
Crafts workers 31 7.1 202 4.6
Managers 18 4.1 240 5.5
Self-employed 14 3.2 82 1.9
Sick or parental leave 14 3.2 61 1.4
Manual workers 13 3.0 85 1.9
Agricultural and fishery workers 5 1.1 56 1.3
Unemployed 5 1.1 69 1.6
Students 3 0.7 149 3.4
Professional militaries 0 0 18 0.4
  1. aColumn percentage
  2. bAccording to the International Standard Classification of Occupations (ISCO-08)