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. Author manuscript; available in PMC: 2016 Nov 1.
Published in final edited form as: Scand J Rheumatol. 2015 Jun 17;44(6):495–502. doi: 10.3109/03009742.2015.1021376
Normal
(18.5–24.9kg/m2)
95% CI Overweight
(25.0–29.9kg/m2)
95% CI Obese
(≥30kg/m2)
95% CI
Short-Form 12 Score
Overall Score Overall 101.9 100.4–103.3 100.9 100.2–101.7 99.6 98.6–100.6
    Physical Overall 47.2 46.2–48.2 46.3 45.6–46.9 44.9 44.2–45.7
    Mental Overall 55.2 54.4–55.9 54.7 54.2–55.3 54.5 53.8–55.1

Physical Activity Scale for Elderly Overall 128.7 121.3–136.0 125.8 121.5–130.0 116.9 111.6–122.1

Late-Life Disability Index
    Frequency Overall 55.4 54.8–56.1 55.2 54.8–55.7 54.9 54.4–55.4
    Limitation Overall 81.9 80.3–83.4 80.9 79.9–82.0 78.8 77.5–80.0

Gait Speed, m/s Overall 1.26 1.23–1.28 1.23 1.22–1.25 1.20 1.18–1.22

Values represent mean score (95% confidence interval) of the indicated metric adjusted for: Age, sex, education level, race, Charlson co-morbidity index, smoking status, radiographic knee osteoarthritis, hip pain and cohort type (incidence, progression), and baseline scoring (Short Form 12, Physical Activity Scale for the Elderly) where available. All subjects included in the modeling with missing values accounted for using Inverse probability weighting