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Table 3 12-month symptom prevalence (bold font) with 95% confidence interval (95%-CI) and total number of affected employees classified according to age groups. (prev.=prevalence)

From: Musculoskeletal symptoms of the upper extremities and the neck: A cross-sectional study on prevalence and symptom-predicting factors at visual display terminal (VDT) workstations

12-month prevalence Symptoms of neck Symptoms of shoulder Symptoms of elbow/forearm Symptoms of hand/wrist
    Prev. (%) 95%-CI n Prev.(%) 95%-CI n Prev. (%) 95%-CI n Prev. (%) 95%-CI n
Female, n = 379 Total female 66.0 61.2, 70.7 250 45.6 40.6, 50.7 173 15.6 11.9, 19.2 59 24.5 20.2, 28.9 93
  Age group < 30 63.6 53.6, 73.7 56 39.8 29.5, 50.0 35 12.5 5.6, 19.4 11 28.4 19.0, 37.8 25
   30–39 68.9 60.6, 77.2 82 41.2 32.3, 50.0 49 12.6 6.6, 18.6 15 23.5 15.9, 31.2 28
   40–49 67.3 58.4, 76.2 72 50.5 41.0, 59.9 54 18.7 11.3, 26.1 20 20.6 12.9, 28.2 22
   50–59 62.5 50.6, 74.4 40 54.7 42.5, 66.9 35 20.3 10.4, 30.2 13 28.1 17.1, 39.1 18
Male, n = 678 Total male 48.1 44.3, 51.9 326 32.8 29.3, 36.3 223 14.8 12.1, 17.5 100 18.9 16.0, 21.8 128
  Age group < 30 41.3 30.5, 52.1 33 20.0 11.2, 28.8 16 11.3 4.4, 18.2 9 8.8 2.6, 15.0 7
   30–39 49.2 42.9, 55.5 120 30.7 24.9, 36.5 75 11.1 7.2, 15.0 27 20.1 15.1, 25.1 49
   40–49 48.6 42.0, 55.2 107 36.4 30.0, 42.8 80 16.8 11.9, 21.7 37 19.5 14.3, 24.7 43
   50–59 51.6 42.9, 60.3 66 40.6 32.1, 49.1 52 20.1 13.2, 27.0 27 22.7 15.4, 30.0 29
All n = 1,057 54.5 51.5, 57.5 576 37.5 34.6, 40.4 396 15.0 12.8, 17.2 159 20.9 18.4, 23.4 221