TABLE 3.

Multivariable logistic regression analysis with presence of ≥1 syndesmophyte as dependent variable

	≥Syndesmophyte
Covariates	OR	95% CI	P‐value
sex	5.51	0.98–31.12	.053
Symptom duration, years	1.19	1.07–1.32	.002 **
Ever smoker	2.71	0.47–15.63	.26
Log hsCRP, mg/L	9.59	1.50–61.50	.017*
Log Th17 cells, %	7.17	1.27–40.46	.026*

Note: Female sex was coded 0 and male sex 1.

Abbreviation: hsCRP, high‐sensitivity C‐reactive protein. *P ≤ .05; **P ≤ .005.