Table 3

Associations of baseline and follow-up overweight and obesity with LBP

BMI at baseline, kg/m2BMI at follow-up, kg/m2LBP, preceding 30 days (n=1363)Radiating LBP, preceding 30 days (n=1363)
n*PR†95% CIn*PR†95% CI
<25<25104 (509)1.0048 (509)1.00
<2525–29.9161 (560)1.000.76 to 1.3270 (560)1.340.89 to 2.00
<25≥3033 (106)1.180.74 to 1.8817 (106)1.911.03 to 3.53
≥25<252 (8)0.840.17 to 4.280 (8)
≥2525–29.921 (62)1.390.79 to 2.5010 (62)2.101.00 to 4.47
≥25≥3026 (118)0.760.47 to 1.2318 (118)1.650.89 to 3.06
  • Significant associations have been marked with bold.

  • *Number with outcome (number of exposed).

  • †PRs and their 95% CIs are adjusted for age, smoking and education.

  • BMI, body mass index; LBP, low back pain; PR, prevalence ratio.