Comparison of the success rate after debridement, antibiotics and implant retention (DAIR) for periprosthetic joint infection among patients with or without a sinus tract

Table 4 The comparison of success rate between the sinus tract group and non-sinus tract group in previous studies

Study	Centers/Nations	DAIR time	Sinus tract N (%)		Non-sinus tract N (%)		HR or OR (95%CI)	P-value
			Success	Failure	Success	Failure
Mu et al. 2020 [15]	Single center from China	2011-2018	30^a		43^a		0.319 (0.062-1.631)^c	0.170
Shohat et al. 2020 [23]	27 centers throughout the USA and Europe	2005-2017	212 (70.2)	90 (29.8)	557(63.9)	315 (36.1)	–	0.049^d
Lesens et al. 2018 [25]	6 centers from France	2010-2014	39^a		98^a		1.8 (0.92-3.81)^b	0.079
Lowik et al. 2018 [24]	3 centers from Netherlands	2006-2016	32 (78.0)	9 (22.0)	206 (59.7)	139 (40.3)	0.42(0.19-0.90)^c	0.022
Lora-Tamayo et al. 2017 [26]	52 centers throughout 15 nations	2003-2012	34 (55.7)	27 (44.3)	223 (59.0)	155 (41.0)	1.12(0.75-1.69)^b	0.58
Tornero et al. 2015 [27]	Database from Spain	1999-2014	12 (70.6)	5 (29.4)	73 (76.0)	23 (24.0)	1.32(0.42-4.15)^c	0.761
Betz et al. 2015 [36]	Single center from Switzerland	1996-2012	2 (100)	0 (0)	29 (80.6)	7 (19.4)	0	1.000
Marculescu et al. 2006 [37]	Single center from USA	1995-1999	15^a		84^a		2.85(1.50-5.44)^b	0.002

^aExact failure number in each group was not available in the corresponding literature; ^bHR; ^cOR; ^dChi-squared test

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