Table 4.

Regression analysis.

		Sclerosis (ventral) [OR, 95% CI]	Sclerosis (middle) [OR, 95% CI]	Sclerosis (dorsal) [OR, 95% CI]	Osteophytes (ventral) [OR, 95% CI]	Osteophytes (dorsal) [OR, 95% CI]	Joint space alterations [OR, 95% CI]
Covariates	Sex [female]	1.1 (0.7–1.5)	1.0 (0.7–1.5)	1.2 (0.7–1.2)	0.2 (0.1–0.3)	3.7 (2.4–5.7)	0.6 (0.3–1.1)
	Parity	1.1 (1.0–1.3)	1.0 (0.9–1.1)	1.0 (0.8–1.1)	0.9 (0.8–1.1)	1.0 (0.9–1.2)	0.9 (0.7–1.3)
	Age [decades]	1.1 (1.0–1.2)	1.1 (1.1–1.3)	1.1 (1.0–1.2)	2.0 (1.7–2.2)	1.4 (1.3–1.6)	1.8 (1.5–2.1)
	Weight [cat.]	1.5 (1.1–1.9)	1.2 (1.0–1.6)	1.5 (1.1–2.0)	1.2 (0.9–1.6)	1.5 (1.1–2.0)	0.7 (0.5–1.2)
	IBD	0.7 (0.4–1.1)	0.9 (0.6–1.5)	1.3 (0.7–2.2)	1.1 (0.4–3.4)	1.3 (0.5–3.3)	n.a.
	Pso	1.2 (0.3–5.8)	4.5 (0.9–24.1)	1.4 (0.2–8.9)	4.3 (0.4–48.8)	2.2 (0.5–10.3)	2.1 (0.3–13.1)
	Typ J	1.2 (0.8–2.0)	0.7 (0.5–1.2)	0.2 (0.1–0.3)	0.5 (0.3–0.9)	0.6* (0.4–1.0)	1.1 (0.5–2.7)
	Acc J	1.2 (0.6–2.3)	0.5 (0.3–1.0)	2.7 (1.4–5.4)	0.7 (0.3–1.6)	0.9 (0.5–1.8)	1.5 (0.5–4.3)
	ISC	0.5 (0.2–1.4)	1.1 (0.4–3.1)	0.2 (0.0–0.7)	3.6* (1.0–12.3)	0.7 (0.2–2.2)	1.8 (0.3–10.8)
	Bip Ilium	1.1 (0.6–2.0)	1.3 (0.7–2.3)	0.6 (0.3–1.1)	0.6 (0.3–1.4)	0.9 (0.5–1.6)	0.7 (0.2–2.7)
	Cresc J	1.7 (0.6–5.4)	1.7 (0.6–5.2)	0.3 (0.1–1.1)	3.6 (0.9–14.4)	0.7 (0.2–2.5)	1.4 (0.1–14.0)
	Sem Def	0.9 (0.1–15.0)	n.a.	n.a.	1.7 (0.1–33.7)	0.9 (0.0–19.6)	n.a.
	Oss Sac	6.2 (0.6–63.7)	0.9 (0.1–8.8)	n.a	2.4 (0.1–46.2)	n.a	n.a
	Other	0.7 (0.2–2.3)	0.5 (0.2–1.9)	0.4 (0.1–1.2)	0.6 (0.1–2.5)	1.8 (0.5–6.0)	1.8 (0.3–10.2)

Results of binary logistic regression analyses.

Significant ORs with 95% CIs excluding 1.0 are written in bold.

OR odds ratio, CI confidence interval, IBD inflammatory bowel disease, Pso cutaneous psoriasis, Typ J typical joint form, Acc J accessory joint, ISC iliosacral complex, Bip Ilium bipartite ilium, Cresc J crescent-shaped ilium, Sem Def semicircular defects, Oss Sac sacral ossification centers, other other joint form.