Predictive risk factors for recollapse of cemented vertebrae after percutaneous vertebroplasty: A meta-analysis

Table 1 Basic characteristics of the included studies

Ref.	Publication year	Country	Study period	Design	Sample size (case/control)	Incidence of recollapse (%)	Mean age (yr)	Sex (M:F)	Mean follow-up (mo)	NOS score
Lin et al[11]	2008	Taiwan, China	2001-2005	Case-control study	98 (62/36)	63.3	72.6	8:90	26.9	8
Heo et al[12]	2009	Korea	2002-2006	Case-control study	343 (11/332)	3.2	68.06	82:261	12	8
Lin et al[13]	2010	Taiwan, China	2004-2007	Case-control study	81 (46/35)	56.8	74.3	16:73	23.0	9
Kang et al[14]	2011	Korea	2008-2010	Case-control study	60 (20/40)	33.3	70	10:50	12	7
Chen et al[15]	2011	Taiwan, China	2001-2008	Case-control study	1800 (10/1790)	0.6	77.7	323:1477	24	8
Oh et al[16]	2016	Korea	2012-2013	Case-control study	44 (22/22)	50	76.1	26:18	16.5	7
Zhang et al[17]	2017	China	2008-2013	Case-control study	172 (50/122)	29.1	88.65	88:84	≥ 12	8
He et al[18]	2018	China	2012-2015	Case-control study	224 (37/187)	16.5	71.9	39:185	16.5	8
Yu et al[19]	2019	China	2011-2014	Case-control study	152 (42/110)	27.6	70.22	15:137	≥ 24	8

NOS: Newcastle-Ottawa Scale.