A Cross-Sectional Study of the Association between Autoantibodies and Qualitative Ultrasound Index of Bone in an Elderly Sample without Clinical Autoimmune Disease
Table 7
Correlation between autoantibodies and quantitative ultrasound index (QUS index): univariate analysis.
Autoantibody
Model 1 (autoantibody alone) [coefficient; (95% CI); value]
Model 2a (autoantibody alone, females only) [coefficient; (95% CI); value]
Model 2b (autoantibody alone, males only) [coefficient; (95% CI); value]
ANA borderline
−0.11
−0.18
−0.13
(−0.26; 0.05)
(−0.22; 0.18)
(−0.36; 0.10)
ANA positive
−0.20
−0.15
−0.16
(−0.40; 0.00)
(−0.40; 0.09)
(−0.47; 0.15)
Anti-ENA autoantibodies borderline
0.55
0.80
0.27
(−0.38; 1.49)
(−0.25; 1.84)
(−1.38; 1.91)
Anti-ENA autoantibodies positive
−0.39
−0.21
−0.59
(−0.99; 0.20)
(−0.86; 0.43)
(−1.70; 0.51)
ANCA borderline
−0.02
−0.04
0.01
(−0.21; 0.18)
(−0.29; 0.21)
(−0.27; 0.30)
ANCA positive
−0.19
0.12
−0.50
(−0.45; 0.07)
(−0.18; 0.42)
(−0.93; −0.05)
Anti-TPO autoantibodies positive
−0.21
−0.18
−0.11
(−0.46; 0.04)
(−0.47; 0.10)
(−0.55; 0.33)
Anti-RHF autoantibodies positive
0.45
0.31
0.76
(−0.44; 1.34)
(−0.68; 1.30)
(−0.80; 2.32)
Anti-TTG autoantibodies positive
−0.15
−0.02
−0.28
(−0.44; 0.14)
(−0.42; 0.37)
(−0.69; 0.14)
Anti-CCP autoantibodies positive
−043
−0.39
−0.61
(−1.51; 0.65)
(−2.11; 1.33)
(−2.03; 0.81)
ACGA positive
−0.02
−0.10
−0.04
(−0.23; 0.20)
(−0.38; 0.18)
(−0.27; 0.35)
Data presented in bold represents significant results. Data presented in italics represents results approaching significance. 95% CI: 95% confidence interval; Ref: reference; ANA: anti-nuclear autoantibodies; Anti-ENA autoantibodies: anti-extractable nuclear antigen autoantibodies; ANCA: anti-neutrophil cytoplasmic autoantibodies; Anti-TPO: anti-thyroid peroxidase autoantibodies; Anti-RHF: anti-rheumatoid factor autoantibodies; Anti-TTG: anti-tissue transglutaminase autoantibodies; Anti-CCP: anti-cyclic citrullinated peptide autoantibodies; ACGA: anti-cardiolipin immunoglobulin G autoantibodies; BMI: body mass index; PA: physical activity; TARFS: Total Australian Recommended Food Score.
