Table 4 The adjusted associations between work-related physical exposures and a subsequent chronic shoulder disorder, stratified by body mass index at baseline
Chronic shoulder disorder at follow-up
BMI <25 (n = 506)BMI ⩾25 (n = 346)
N of cases (%)OR (95% CI)pN of cases (%)OR (95% CI)p
Working in awkward postures0.0070.72
    No9 (2)1.025 (11)1.0
    Yes13 (9)3.4 (1.4 to 8.4)16 (13)1.1 (0.6 to 2.2)
Work involving repetitive movements0.0070.34
    No12 (3)1.029 (11)1.0
    Yes10 (11)3.7 (1.5 to 9.1)12 (14)1.4 (0.7 to 3.0)
Physical workload<0.00010.13
    None2 (1)1.013 (8)1.0
    Moderate (index: 1–2)15 (9)12.6 (2.8 to 56.3)19 (14)2.0 (0.9 to 4.2)
    Strenuous (index: 3–5)5 (10)12.8 (2.4 to 69.8)9 (16)2.1 (0.8 to 5.2)
  • *All models adjusted for age, gender and up to three potential confounders: uninteresting or monotonous work, hurried or tight work schedule, worry about making mistakes at work, tendency for somatisation, diabetes and physical exercise.