Table 4. Multivariable-adjusted odds ratios for incidence of persistent low back pain according to body mass index category based on WHO classification.
| <18.50 | 18.50−24.99 | 25.00−29.99 | ≥30.00 | p for linearity | |
|---|---|---|---|---|---|
| n | 45 | 924 | 169 | 14 | |
| Men-years of follow-up | 1,035 | 21,252 | 3,887 | 322 | |
| Persistent LBP per 10,000 men-years | 29 | 32 | 44 | 93 | |
| Age-adjusted odds ratio (95% CI) | 0.89 (0.27−2.94) | 1.00 (reference) | 1.47 (0.84−2.57) | 3.46 (0.94−12.73) | ** |
| Multivariable-adjusteda odds ratio (95% CI) | 0.91 (0.27−3.03) | 1.00 (reference) | 1.37 (0.75−2.49) | 3.31 (0.86−12.70) | * |
aAdjusted for age, drinking, smoking, and maximal oxygen uptake.
*p<0.05, **p<0.01
CI: confidence interval