Journal of Orthopaedic Surgery and Research

Table 2 Subgroup analysis according to follow-up time

From: Adjacent segment degeneration or disease after cervical total disc replacement: a meta-analysis of randomized controlled trials

FU	<5y						≥5y
	OR [95%CI]	P value	I²(%)	NO. of P	NO. of ASD	NO. of S	OR [95%CI]	P value	I²(%)	NO. of P	NO. of ASD	NO. of S
ASDeg	0.63 [0.48, 0.84]	0.001	23	928	344	5	0.49 [0.34, 0.71]	0.0002	0	496	197	2
ASDis	0.99 [0.57, 1.73]	0.98	0	738	61	3	–	–	–	–	–	0
Reop	0.52 [0.24, 1.13]	0.1	40	843	28	3	0.51 [0.25, 1.04]	0.07	35	944	33	2

Abbreviations: FU follow-up, ASDeg adjacent segment degeneration, ASDis adjacent segment disease, Reop Reoperation, NO. of P the number of patients, NO. of ASD the number of ASD, NO. of S the number of studies

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ISSN: 1749-799X

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