Table 3 |
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Associations between all three SES variables analyzed simultaneously with OA outcomes |
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|
Variables |
Knee radiographic OA OR, 95% CI |
Bilateral knee radiographic OA OR, 95% CI |
Knee symptomatic OA OR, 95% CI |
Bilateral knee symptomatic OA OR, 95% CI |
|
|
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|
Low educational attainment |
1.44 (1.20, 1.73)** |
1.43 (1.13, 1.81)** |
1.66 (1.34, 2.06)** |
1.27 (0.91, 1.76) |
|
Non-managerial occupation |
1.07 (0.90, 1.28) |
1.07 (0.84, 1.36) |
1.09 (0.88, 1.36) |
1.10 (0.79, 1.54) |
|
Medium poverty rate, 12 to 25% |
1.21 (0.98, 1.48) |
0.99 (0.75, 1.29) |
1.18 (0.92, 1.51) |
1.01 (0.70, 1.48) |
|
High poverty rate, > 25% |
1.83 (1.43, 2.36)** |
1.56 (1.12, 2.16)** |
1.36 (1.00, 1.83)* |
1.12 (0.71, 1.76) |
|
Age (55 to 64) |
1.68 (1.36, 2.07)** |
2.14 (1.59, 2.90)** |
1.96 (1.50, 2.54)** |
2.34 (1.53, 3.58)** |
|
Age (65 and above) |
3.70 (3.00, 4.57)** |
5.59 (4.17, 7.50)** |
3.69 (2.84, 4.79)** |
4.80 (3.17, 7.26)** |
|
Female |
1.06 (0.89, 1.25) |
1.14 (0.91, 1.42) |
1.24 (1.01, 1.52)* |
1.58 (1.14, 2.19)** |
|
African American |
0.92 (0.77, 1.11) |
1.13 (0.89, 1.45) |
0.95 (0.77, 1.19) |
1.00 (0.72, 1.40) |
|
BMI ≥ 30 |
2.39 (2.03, 2.81)** |
2.89 (2.32, 3.58)** |
2.92 (2.40, 3.56)** |
3.93 (2.89, 5.35)** |
|
Current smoker |
0.68 (0.55, 0.84)** |
0.61 (0.45, 0.83)** |
0.80 (0.62, 1.04) |
0.82 (0.54, 1.25) |
|
Knee injury |
2.11 (1.75, 2.55)** |
1.90 (1.48, 2.44)** |
3.15 (2.55, 3.88)** |
2.23 (1.61, 3.08)** |
|
High activity score |
1.00 (0.85, 1.17) |
1.00 (0.81, 1.24) |
1.16 (0.96, 1.41) |
1.19 (0.88, 1.59) |
|
|
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§Age, gender, race, BMI, smoking, knee injury, and occupational activity score * P < 0.05; ** P < 0.01: from test for OR = 1. 1 This table presents odds ratios and 95% confidence interval results of four logistic models (four outcomes). |
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Callahan et al. Arthritis Research & Therapy 2011 13:R169 doi:10.1186/ar3492 |
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