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. Author manuscript; available in PMC: 2014 Jan 1.
Published in final edited form as: Arthritis Care Res (Hoboken). 2013 Jan;65(1):5–14. doi: 10.1002/acr.21811

Table 5. Odds of Poor Outcome Associated with Race among Women with High BMI and among Women with Large Waist Circumference.

The table shows results for African-American (AA) and Caucasian (C) women with high BMI and women with large waist circumference, presented as odds ratios (OR) and 95% confidence intervals (CIs) associated with being African-American (vs. Caucasian) for poor baseline-to-4-year function outcome (dependent variable). The crude ORs are shown first, followed by the ORs adjusted for age, education, and income, followed by the ORs from fully adjusted models (adjusted for age, education, income, BMI, comorbidity, depressive symptoms, physical activity, knee pain, disease severity).

Women with High BMI (≥ 25 kg/m2) Women with Large Waist Circumference (> 88 cm)
Poor WOMAC
outcome
OR (95% CI)
Poor 20 meter
walk outcome
OR (95% CI)
Poor chair stand
outcome
OR (95% CI)
Poor WOMAC
outcome
OR (95% CI)
Poor 20 meter
walk outcome
OR (95% CI)
Poor chair stand
outcome
OR (95% CI)
# (%) with poor outcome AA 206/382 (53.9%) 206/327 (63.0%) 185/332 (55.7%) 203/383 (53.0%) 209/328 (63.7%) 190/333 (57.1%)
C 461/1149 (40.1%) 571/1022 (55.9%) 439/1036 (42.4%) 561/1439 (39.0%) 683/1271 (53.7%) 545/1292 (42.2%)
AA vs. C (unadjusted) 1.75 (1.38, 2.21) 1.35 (1.04, 1.74) 1.71 (1.33, 2.20) 1.77 (1.41, 2.22) 1.51 (1.18, 1.94) 1.82 (1.43, 2.32)
AA vs. C (adjusted for age, education, income) 1.54 (1.19, 1.98) 1.43 (1.07, 1.91) 1.81 (1.37, 2.39) 1.55 (1.21, 1.99) 1.57 (1.18, 2.07) 2.02 (1.54, 2.65)
AA vs. C (fully adjusted) 1.29 (0.99, 1.68)a 1.29 (0.96, 1.75)b 1.63 (1.22, 2.17)c 1.22 (0.94, 1.60)d 1.35 (1.00, 1.81)e 1.68 (1.26, 2.24)f
a

Covariates significantly associated with outcome: pain [1.06 (1.03, 1.10)]; disease severity [1.24 (1.09, 1.41)]; depressive symptoms [1.65 (1.13, 2.40)]; income [0.87 (0.77, 0.99)]

b

Covariates significantly associated with outcome: age [1.06 (1.05, 1.08)]; disease severity [1.18 (1.02, 1.36)]; comorbidity [1.29 (1.07, 1.55)]; income [0.86, (0.75, 0.99)]

c

Covariates significantly associated with outcome: age [1.04 (1.02, 1.05)]; income [0.86 (0.75, 0.98)]; BMI [1.04 (1.01, 1.08)]

d

Covariates significantly associated with outcome:pain [1.07 (1.03, 1.10)]; disease severity [1.29 (1.15, 1.46)]; depressive symptoms [1.54 (1.10, 2.18)]; comorbidity [1.18 (1.01, 1.37)]

e

Covariates significantly associated with outcome: age [1.06 (1.04, 1.07)]; disease severity [1.20 (1.05, 1.37)]; comorbidity [1.22 (1.02, 1.46)]; income [0.83 (0.73, 0.95)]; BMI [1.05 (1.02, 1.08)]

f

Covariates significantly associated with outcome: age [1.04 (1.02, 1.05)]; BMI [1.04 (1.01, 1.06)]