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Table 1 Individual characteristics and self-reported determinants for musculoskeletal disorders among shipyard employees (n = 853)

From: Musculoskeletal disorders in shipyard industry: prevalence, health care use, and absenteeism

  White collar workers (n = 229) Blue collar worker (n = 624)
Age (y, mean (SD)) 36.8 (9.1) 38.7 (9.5)
Height (cm, mean(SD)) 174.9 (8.8) 176.1 (6.5)
Body mass index   
   (kg/m2, mean (SD)) 26.0 (4.8) 27.4 (4.0)
Educational level (%) *   
   Higher 46.9 3.4
   Technical 29.6 60.3
   Basic 23.5 36.3
Duration of employment *   
   (y, mean (SD)) 9.5 (8.8) 16.0 (10.0)
Family situation (%) *   
   Alone 24.6 12.4
   Relatives/friends 75.4 87.6
Manual material handling (%) * 6.0 21.8
Strenuous shoulder/hand movements (%) * 34.6 66.7
Strenuous (awkward) postures (%) * 17.3 53.6
Perceived exertion (score, mean (SD)) * 11.05 (3.65) 14.01 (2.72)
Psychosocial load (score, mean (SD)):   
   Job control 41.24 (24.04) 40.53 (22.25)
   Work demands * 44.36 (22.40) 36.47 (21.36)
General health   
   Need for recovery (score, mean (SD) 40.55 (28.52) 39.41 (26.85)
   Perceived general health (score, mean (SD) * 21.72 (21.43) 17.38 (18.97)
   Musculoskeletal co-morbidity (%) * 24.1 16.3
  1. * x2 or t-test, p < 0.05