Associations of physical heaviness of work at baseline in 1986 with radiating and local low back pain at follow-up in 2007 (ORs and their 95% CIs)
| Physical heaviness of work at baseline | Model 0: crude | Model 1: adjusted for age | Model 2: adjusted for age, smoking and BMI | Model 3: adjusted for age, smoking and BMI, and mediating effects of pain in 1986 | ||||
|---|---|---|---|---|---|---|---|---|
| OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | |
| Radiating low back pain | ||||||||
| Women (n=414) | ||||||||
| Sedentary or physically light work | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Medium heavy work | 2.35 | (1.30 to 4.26) | 2.55 | (1.37 to 4.71) | 2.41 | (1.29 to 4.50) | 2.43 | (1.30 to 4.54) |
| Heavy work | 3.86 | (1.55 to 9.63) | 4.06 | (1.62 to 10.18) | 4.09 | (1.62 to 10.31) | 3.98 | (1.57 to 10.07) |
| Men (n=324) | ||||||||
| Sedentary or physically light work | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Medium heavy work | 1.84 | (0.88 to 3.85) | 1.74 | (0.83 to 3.65) | 1.68 | (0.79 to 3.59) | 1.23 | (0.56 to 2.72) |
| Heavy work | 2.16 | (1.15 to 4.05) | 2.06 | (1.09 to 3.88) | 2.01 | (1.06 to 3.82) | 1.56 | (0.80 to 3.07) |
| Local low back pain | ||||||||
| Women (n=414) | ||||||||
| Sedentary or physically light work | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Medium heavy work | 1.39 | (0.81 to 2.38) | 1.34 | (0.77 to 2.32) | 1.26 | (0.72 to 2.20) | 1.27 | (0.72 to 2.22) |
| Heavy work | 2.13 | (0.88 to 5.17) | 2.08 | (0.86 to 5.07) | 2.11 | (0.86 to 5.15) | 2.03 | (0.82 to 4.98) |
| Men (n=324) | ||||||||
| Sedentary or physically light work | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Medium heavy work | 1.99 | (1.08 to 3.66) | 2.14 | (1.15 to 3.99) | 2.06 | (1.09 to 3.89) | 1.82 | (0.95 to 3.48) |
| Heavy work | 1.66 | (0.97 to 2.82) | 1.77 | (1.03 to 3.03) | 1.71 | (0.99 to 2.95) | 1.55 | (0.89 to 2.71) |
BMI, body mass index.