TABLE 2.

Association Between the Positive US Finding and Clinical and Laboratory Parameters (n = 204)

	SH Grade ≥ 2		PD Grade ≥ 2		Bone Erosion
	p value	OR (95% CI)	p value	OR (95% CI)	p value	OR (95% CI)
Sex (male)	0.242	2.12 (0.70–6.41)	0.082	2.11 (0.97–4.58)	0.563	1.33 (0.63–2.84)
Age	0.415	n/a	0.214	n/a	0.618	n/a
Duration of disease	0.574	n/a	0.102	n/a	0.238	n/a
Early RA	0.770	1.52 (0.42–5.47)	0.637	1.28 (0.50–3.29)	1.000	1.01 (0.39–2.61)
High-titera RF positivity (n = 141)	0.835	1.14 (0.50–2.61)	0.235	1.57 (0.80–3.07)	0.309	1.47 (0.75–2.87)
High-titera anti-CCP antibody positivity (n = 66)	0.004b	6.00 (1.78–20.2)	0.002b	5.56 (1.82–16.9)	0.010b	4.51 (1.49–13.6)
Recent CRP level ≥0.3 mg/dL (n = 183)	0.005b	3.13 (1.38–7.10)	0.005b	2.38 (1.31–4.31)	0.301	1.38 (0.77–2.48)
Recent ESR ≥15 mm/h (n = 178)	0.120	1.92 (0.89–4.13)	0.451	1.31 (0.72–2.37)	0.451	0.77 (0.43–1.40)

^aHigh-positive refers to IU values that are >3 times the upper limit of normal for the assay.

^bp < 0.05.