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Table 3 Estimated Adjusted Effects of BMI on 6-Month Improvement (2+ points) in Subjective Average Back Pain

From: The effect of obesity on treatment outcomes for low back pain

Category

Odds ratio

95 % confidence interval

Underweight

1.03

(0.48, 2.19)

Normal weight

1.00a

-

Over weight

0.95

(0.60, 1.48)

Obese

0.70

(0.44, 1.13)

  1. Adjusted for gender, race, treatment group, smoking status, duration of LBP, and confidence in treatment effect
  2. aReference category