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Table 3 Relative frequency and percentage of bricklayers and supervisors participating in a baseline and follow-up survey: i) perceiving their musculoskeletal complaints were work-related and ii) reporting they had many problems (≥7, on a scale from 0 to 10) during work due to their musculoskeletal complaints

From: Musculoskeletal disorders among construction workers: a one-year follow-up study

Body region Bricklayers Construction supervisors
  MSD reported tobe work-related Having many problemsduring work MSD reported tobe work-related Having many problemsduring work
  Relativefrequency % 95% CI Relativefrequency % 95% CI Relativefrequency % 95% CI Relativefrequency % 95% CI
Shoulder and upper arm 61/71 86 (75.8-92.4) 29/70 41 (30.6-53.1) 21/43 49 (45.0-76.1) 16/42 38 (25.0-53.2)
Elbow 36/36 100 (91.7-100) 18/35 51 (35.6-67.0) 6/16 38 (18.4-61.5) 6/16 38 (18.4-61.5)
Lower arm and wrist 35/40 88 (73.4-95.0) 14/39 36 (22.7-51.6) 5/9 56 (26.6-81.2) 5/9 56 (26.6-81.2)
Hand 19/25 76 (56.3-88.8) 9/25 36 (20.1-55.6) 7/19 37 (19.1-59.1) 5/18 28 (12.2-51.2)
Hip 25/32 78 (61.0-89.3) 13/30 43 (27.4-60.8) 14/23 61 (40.7-77.9) 9/21 43 (24.4-63.5)
Upper leg 9/14 64 (38.6-83.8) 5/12 42 (19.3-68.1) 8/14 57 (32.6-78.7) 7/13 54 (29.1-76.8)
Knee 53/75 71 (59.5-79.8) 22/72 31 (21.1-42.0) 19/37 51 (35.9-66.6) 16/35 46 (30.5-61.8)
Lower leg and ankle 10/20 50 (29.9-70.1) 10/17 59 (36.0-78.4) 8/20 40 (21.8-61.4) 9/18 50 (29.0-71.0)
Foot 10/23 43 (25.6-63.2) 7/21 33 (17.1-54.8) 11/26 42 (25.5-61.1) 7/21 33 (17.1-54.8)
Neck 32/36 89 (74.1-96.2) 15/35 43 (28.0-59.2) 16/38 42 (27.8-57.8) 10/34 29 (16.7-46.3)
Back 108/120 90 (83.2-94.3) 54/111 49 (39.6-57.8) 39/73 53 (42.1-64.4) 23/68 34 (23.7-45.7)