Table 2.

Extent of median delay in diagnosis of axSpA (n = 25)

Author	Year	Country	Sample size	Disease definition	Diagnostic delay(years)	IQR	Range
Seo et al.	2014	South Korea	94	axSpA	8	3–15
Forejtova et al.	2008	Czech Republic	979	AS	7.5	3.5–12.5
Bakland et al.	2011	Norway	677	AS	7
Fallahi et al.	2016	Iran	163	AS	6		0–32
Hamilton et al.	2011	UK	807	AS	6	2–12
Merino et al.	2021	Spain	469	AS	6	2–12
Aggarwal et al.	2009	India	70	AS	5.9	3–11
Brandt et al.	2007	Germany	350	axSpA	5		0.1–45
Sykes et al.	2015	UK	1193	axSpA	5	2–12
Gerdan et al.	2012	Turkey	393	AS	5	11
Limsakul et al.	2021	Thailand	177	axSpA	5	1.7–11.1
Garrido-Cumbrera et al.	2019	Europe	2846	axSpA	4
Zengin et al.	2021	Turkey	308	axSpA	4	3–5.5
Ozgocmen et al.	2009	Turkey	279	AS	3
Omair et al.	2017	Saudi Arabia	134	axSpA	3	1–6
Redeker et al.	2019	Germany	4471	axSpA	2.3		0.1–7.2
Li et al.	2019	China	208	axSpA	2.1		4–74.8
Salvadorini et al.	2012	Italy	135	AS	2.1		2–3
Bodur et al.	2010	Turkey	1381	AS	2
Masson Behar et al.	2016	France	432	axSpA	2	1–7
Qian et al.	2017	China	1251	AS	2	0–2
Reddy et al.	2020	India	100	axSpA	2	0.5–5
Kong et al.	2021	China	270	AS	2	0–5
Hur et al.	2021	South Korea	1012	AS	1	0.25–4
Sorensen et al.	2014	Denmark	1335	AS	0.67