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Table 2 Comparison of the Prevalence of Work Related Musculoskeletal Disorders among Domestic Gas Workers and Staff of Works Department (n = 100)

From: Prevalence of work-related musculoskeletal symptoms and associated risk factors among domestic gas workers and staff of works department in Enugu, Nigeria: a cross-sectional study

Variable frequency (%) χ2-score p-value
DGW
(n = 50)
SWD
(n = 50)
Total
(n = 100)
General WMSD Prevalence 43 (86) 19 (38) 62 (62) 24.45 < 0.001*
Number of WMSD regions
 1 9 (18) 12 (24) 21 (21) 39.16 < 0.001*
 2 10 (20) 5 (10) 15 (15)   
 3 13 (26) 2 (4) 15 (15)   
  > 4 12 (24) 1 (2) 13 (13)   
Regional WMSD Prevalence
 Neck WMSD 2 (4) 4 (8) 6 (6) 0.71 0.680
 Shoulder WMSD 26 (52) 6 (12) 32 (32) 18.38 < 0.001*
 Upper back WMSD 18 (36) 1 (2) 19 (19) 18.78 < 0.001*
 Elbow WMSD 19 (38) 4 (8) 23 (23) 12.71 < 0.001*
 Wrist/hand 6 (12) 2 (4) 8 (8) 2.71 0.269
 Lower back 27 (54) 1 (2) 28 (28) 33.53 < 0.001*
 Hips/thighs 13 (26) 10 (20) 23 (23) 0.51 0.640
 Knees 4 (8) 4 (8) 8 (8) 0.001 1.000
 Ankles/foot 1 (2) 2 (4) 3 (3) 0.34 1.000
Activity limitation 8 (16) 1 (2) 9 (9) 5.98 0.031*
Has seen a physician in the last 1-year 9 (18) 2 (4) 11(11) 5.01 0.051
Pain intensity (NPRS)     25.02 < 0.001*
 None 9 (18) 32 (64) 41 (41)   
 Low (1–4) 11 (22) 4 (8) 15 (15)   
 Moderate (5–6) 25 (50) 8 (16) 33 (33)   
 High (7–10) 5 (10) 6 (12) 11 (11)   
  1. DGW Domestic Gas Workers, SWD Staff of Works Department, WMSD Work-Related Musculoskeletal Disorders, NPRS Numerical Pain Rating Scale
  2. * = significant (2-tailed) test at p < 0.05