Table 1

Associations of chondrocalcinosis with radiographic features of osteoarthritis

Joint site
Any (tibiofemoral or patellofemoral)TibiofemoralPatellofemoral
Risk factorsCrude OR (95% CI)Adjusted OR
(95% CI)*
Overall p valuep Value for trendCrude OR (95% CI)Adjusted OR (95% CI)*Overall p valuep Value for trendCrude OR (95% CI)Adjusted OR (95% CI)*Overall p valuep Value for trend
OR, odds ratio; 95% CI, 95% confidence interval.
*Odds ratio adjusted for age and sex.
Radiographic OA (global definition)3.37 (2.29 to 4.96)2.45 (1.65 to 3.65)2.83 (1.60 to 5.01)2.00 (1.11 to 3.60)2.41 (1.62 to 3.58)2.08 (1.38 to 3.12)
Summated osteophyte score0.0020.0030.060.0140.030.007
    1st Quartile1.01.01.01.01.01.0
    2nd Quartile2.07 (1.19 to 3.59)1.72 (0.99 to 3.04)1.65 (0.85 to 3.18)1.43 (0.73 to 2.81)1.35 (0.70 to 2.62)1.19 (0.61 to 2.34)
    3rd Quartile1.34 (0.69 to 2.60)0.93 (0.47 to 1.84)1.74 (0.90 to 3.37)1.20 (0.61 to 2.37)1.72 (0.93 to 3.20)1.20 (0.64 to 2.27)
    4th Quartile3.42 (2.14 to 5.47)2.40 (1.48 to 3.90)3.15 (1.81 to 5.48)2.14 (1.21 to 3.79)3.09 (1.90 to 5.05)2.14 (1.29 to 3.55)
Summated number of joint sites with osteophyte0.020.020.270.050.060.008
    1st Quartile1.01.01.01.01.01.0
    2nd Quartile2.54 (1.46 to 4.42)2.05 (1.16 to 3.63)1.85 (0.90 to 3.82)1.40 (0.67 to 2.94)1.23 (0.52 to 2.91)0.99 (0.41 to 2.39)
    3rd Quartile1.60 (0.88 to 2.93)1.16 (0.63 to 2.15)1.84 (0.92 to 3.68)1.40 (0.69 to 2.84)2.21 (1.28 to 3.81)1.63 (0.93 to 2.85)
    4th Quartile2.79 (1.68 to 4.63)1.94 (1.15 to 3.26)2.43 (1.35 to 4.36)1.70 (0.93 to 3.10)2.76 (1.63 to 4.67)1.93 (1.12 to 3.33)
Joint space width0.390.120.080.49
    1st Quartile1.01.01.01.0
    2nd Quartile0.91 (0.53 to 1.57)1.02 (0.58 to 0.79)0.47 (0.27 to 0.82)0.57 (0.32 to 1.01)
    3rd Quartile1.01 (0.59 to 1.74)1.14 (0.65 to 1.98)0.88 (0.55 to 1.42)1.09 (0.67 to 1.80)
    4th Quartile1.46 (0.88 to 2.43)1.51 (0.89 to 2.57)0.58 (0.35 to 0.99)0.68 (0.39 to 1.21)