Background
Methods
Study population
Study design and data collection
Statistical analysis
Results
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 |
White collars (n = 229) | Metal workers (n = 287) | Welders (n = 93) | Other blue collars (n = 244) | |
---|---|---|---|---|
Low back pain (%) | ||||
12 months prevalence | 39.3 | 33 | 39.8 | 37.9 |
sickleave in past 12 months | 14.8 | 12.2 | 17.2 | 18.9 |
health care in past 12 months | 17.9 | 17 | 20.4 | 21.4 |
Shoulder/neck pain (%) | ||||
12 months prevalence * | 27.9 | 14.6 | 18.3 | 25.2 |
sickleave in past 12 months | 4.4 | 4.4 | 7.5 | 5.0 |
health care in past 12 months | 11.8 | 7.5 | 8.6 | 8.0 |
Hand/wrist pain (%) | ||||
12 months prevalence | 17.0 | 15.3 | 10.8 | 13.4 |
sickleave in past 12 months | 2.6 | 4.1 | 2.2 | 2.9 |
health care in past 12 months | 6.6 | 7.1 | 5.4 | 8.4 |
Self reported risk factors | Low back pain (n = 853) | Health care use (n = 314) | Sick leave (n = 314) | |||
---|---|---|---|---|---|---|
OR§
| 95% CI | OR§
| 95% CI | OR§
| 95% CI | |
Age | ||||||
≤ 30 | 1.00 | 1.00 | 1.00 | |||
31–44 | 1.53* | 1.04 2.25 | 0.85 | 0.46 1.58 | 0.89 | 0.46 1.71 |
45 ≥ | 1.48 | 0.97 2.26 | 1.06 | 0.54 2.08 | 0.50 | 0.24 1.03 |
Females | 1.19 | 0.62 2.28 | 0.64 | 0.24 1.71 | 0.34 | 0.11 1.02 |
Body mass index >30 kg/m2 | 0.81 | 0.55 1.20 | 1.06 | 0.59 1.91 | 1.32 | 0.71 2.45 |
Living alone | 1.04 | 0.68 1.59 | 0.87 | 0.46 1.67 | 1.47 | 0.75 2.87 |
Kids | 1.12 | 0.80 1.57 | 0.93 | 0.56 1.54 | 0.70 | 0.41 1.19 |
Blue collars | 0.84 | 057 1.23 | 1.31 | 0.74 2.32 | 1.28 | 0.72 2.27 |
Low level of education | 1.09 | 0.70 1.68 | 0.97 | 0.49 1.91 | 1.34 | 0.64 2.81 |
Supervising | 1.00 | 0.73 1.39 | 1.09 | 0.68 1.75 | 0.56* | 0.32 0.99 |
Manual material handling | 1.55* | 1.02 2.36 | 1.13 | 0.63 2.02 | 1.20 | 0.65 2.20 |
Strenuous shoulder movements | 1.21 | 0.87 1.67 | 1.23 | 0.76 2.00 | 1.25 | 0.74 2.09 |
Strenuous awkward postures | 1.35 | 0.96 1.88 | 1.41 | 0.85 2.32 | 1.42 | 0.84 2.40 |
High perceived exertion | 1.34 | 0.98 1.84 | 1.45 | 0.90 2.32 | 1.57 | 0.96 2.58 |
Low job control | 1.07 | 0.79 1.46 | 1.18 | 0.74 1.88 | 1.37 | 0.84 2.24 |
High job demands | 1.00 | 0.72 1.38 | 0.89 | 0.55 1.44 | 1.11 | 0.66 1.87 |
High need for recovery | 2.11* | 1.49 2.98 | 1.25 | 0.76 2.08 | 0.95 | 0.56 1.62 |
Bad/moderate perceived general health | 1.76* | 1.25 2.48 | 1.03 | 0.64 1.66 | 0.92 | 0.55 1.55 |
MSD comorbidity | - | |||||
LBP | 1.00 | 1.00 | ||||
LBP and HWP | 1.29 | 0.61 2.75 | 1.53 | 0.66 3.59 | ||
LBP and SNP | 1.33 | 0.73 2.41 | 1.74 | 0.89 3.39 | ||
ALL | 1.10 | 0.53 2.29 | 2.78* | 1.17 6.60 | ||
Chronic complaint | - | 2.44* | 1.23 4.83 | 2.36* | 1.19 4.70 |
Self reported risk factors | Hand wrist pain (n = 853) | Health care use (n = 126) | Sick leave (n = 126) | |||
---|---|---|---|---|---|---|
OR§
| 95% CI | OR§
| 95% CI | OR§
| 95% CI | |
Age | ||||||
≤ 30 | 1.00 | 1.00 | 1.00 | |||
31–44 | 1.25 | 0.74 2.12 | 3.51* | 1.19 10.34 | 0.29* | 0.10 0.83 |
45 ≥ | 1.64 | 0.92 2.91 | 0.64 | 0.24 1.73 | 0.36 | 0.12 1.07 |
Females | 3.82* | 1.93 7.58 | 0.29 | 0.06 1.45 | 0.81 | 0.23 2.85 |
Body mass index >30 kg/m2 | 1.39 | 0.85 2.26 | 1.59 | 0.62 4.10 | 1.00 | 0.33 3.05 |
Living alone | 0.75 | 0.41 1.37 | 0.25* | 0.07 0.92 | 0.90 | 0.24 3.38 |
Kids | 1.15 | 0.73 1.82 | 1.86 | 0.72 4.82 | 1.21 | 0.42 3.46 |
Blue collars | 1.42 | 0.79 2.55 | 9.45* | 2.20 40.51 | 1.87 | 0.32 0.84 |
Low level of education | 1.06 | 0.59 1.91 | 3.72 | 0.77 18.02 | 3.10 | 0.59 6.24 |
Supervising | 1.34 | 0.87 2.07 | 1.00 | 0.43 2.34 | 0.76 | 0.31 1.91 |
Manual material handling | 1.99* | 1.18 3.35 | 0.60 | 0.22 1.66 | 0.47 | 0.14 1.54 |
Strenuous shoulder movements | 1.39 | 0.89 2.18 | 0.17* | 0.06 0.50 | 1.36 | 0.44 4.17 |
Strenuous awkward postures | 1.32 | 0.83 2.10 | 1.07 | 0.39 2.96 | 1.01 | 0.36 2.85 |
High perceived exertion | 1.18 | 0.76 1.82 | 0.98 | 0.40 2.45 | 1.34 | 0.50 3.58 |
Low job control | 1.06 | 0.70 1.61 | 1.51 | 0.65 3.47 | 0.82 | 0.32 2.07 |
High job demands | 0.76 | 0.50 1.18 | 0.89 | 0.38 2.06 | 1.45 | 0.54 3.88 |
High need for recovery | 1.01 | 0.63 1.61 | 0.60 | 0.25 1.44 | 0.57 | 0.22 1.47 |
Bad/moderate perceived general health | 2.52* | 1.64 3.87 | 0.85 | 0.36 2.00 | 0.86 | 0.33 2.27 |
MSD comorbidity | ||||||
HWP | 1.00 | 1.00 | ||||
HWP and LBP | 1.17 | 0.38 3.56 | 0.41 | 0.12 1.42 | ||
HWP and SNP | 5.27* | 1.09 25.39 | 0.74 | 0.18 2.99 | ||
ALL | 1.36 | 0.46 4.08 | 0.61 | 1.19 1.90 | ||
Chronic complaint | 2.53 | 0.98 6.51 | 1.62 | 0.60 4.37 |
Self reported risk factors | shoulder neck pain (n = 853) | Health care use (n = 184) | Sick leave (n = 184) | |||
---|---|---|---|---|---|---|
OR§
| 95% CI | OR§
| 95% CI | OR§
| 95% CI | |
Age | ||||||
≤ 30 | 1.00 | 1.00 | 1.00 | |||
31–44 | 1.61* | 1.04 2.50 | 1.40 | 0.62 3.15 | 0.75 | 0.25 2.30 |
45 ≥ | 1.94* | 1.21 3.11 | 1.36 | 0.58 3.19 | 1.49 | 0.43 5.13 |
Females | 1.70 | 0.90 3.11 | 0.55 | 0.19 1.58 | 0.66 | 0.16 2.72 |
Body mass index >30 kg/m2 | 0.84 | 0.54 1.31 | 1.27 | 0.58 2.75 | 0.56 | 0.18 1.76 |
Living alone | 1.14 | 0.72 1.82 | 0.79 | 0.34 1.83 | 0.50 | 0.15 1.70 |
Kids | 0.83 | 0.57 1.22 | 1.31 | 0.66 2.61 | 0.27* | 0.10 0.75 |
Blue collars | 0.72 | 0.47 1.09 | 0.78 | 0.37 1.62 | 2.10 | 0.66 6.61 |
Low level of education | 0.99 | 0.61 1.60 | 1.12 | 0.48 2.60 | 1.68 | 0.42 6.62 |
Supervising | 0.93 | 0.64 1.34 | 0.74 | 0.39 1.42 | 0.69 | 0.27 1.77 |
Manual material handling | 0.75 | 0.45 1.25 | 1.07 | 0.42 2.70 | 1.04 | 0.33 3.26 |
Strenuous shoulder movements | 1.04 | 0.72 1.49 | 1.08 | 0.57 2.07 | 3.87* | 1.50 9.99 |
Strenuous awkward postures | 1.15 | 0.79 1.67 | 0.80 | 0.41 1.58 | 1.15 | 0.43 3.09 |
High perceived exertion | 0.87 | 0.60 1.24 | 1.18 | 0.63 2.21 | 1.60 | 0.68 3.79 |
Low job control | 1.10 | 0.78 1.56 | 1.12 | 0.60 2.08 | 1.32 | 0.59 2.96 |
High job demands | 0.93 | 0.65 1.34 | 0.61 | 0.32 1.16 | 0.41* | 0.17 0.96 |
High need for recovery | 1.28 | 0.86 1.89 | 0.95 | 0.49 1.85 | 1.79 | 0.71 4.55 |
Bad/moderate perceived general health | 3.63* | 2.55 5.16 | 1.34 | 0.70 2.58 | 2.28 | 0.91 5.69 |
MSD comorbidity | - | |||||
SNP | 1.00 | 1.00 | ||||
SNP and LBP | 1.17 | 0.56 2.48 | 0.91 | 0.36 2.34 | ||
SNP and HWP | 3.31 | 0.96 11.40 | 1.08 | 0.26 4.49 | ||
ALL | 1.42 | 0.59 3.41 | 0.37 | 0.09 1.44 | ||
Chronic complaint | - | 2.85* | 1.52 5.35 | 3.42* | 1.38 8.46 |