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Table 2 Baseline characteristics of a meta-analysis study of D-dimer in the diagnosis of periprosthetic infection

From: The accuracy of D-dimer in the diagnosis of periprosthetic infections: a systematic review and meta-analysis

Author Year Country Type of research Sample size Case group/control group Average age Male/female Gold Standard Sampling type Threshold Whether to exclude inflammatory diseases Whether to set a control group Prosthesis type Typology of infection
Wang [21] 2020 China Retrospective 157 51/106 64.6 70/87 MSIS Serum 1220 ng/ml Yes Yes NA Chronic
Qin [22] 2019 China Forward-looking 122 55/67 65.9 53/69 ICM Serum 1170 ng/ml Yes Yes NA Chronic
Pannu [14] 2020 USA Retrospective 111 89/22 70 62/49 ICM Serum 850 ng/ml No Yes NA NA
Hu [23] 2020 China Retrospective 77 40/37 60.8 37/40 MSIS Serum 955 ng/ml No Yes NA NA
Shahi [12] 2017 USA Forward-looking 195 86/109 59.7 101/94 ICM Serum 850 ng/ml No Yes NA NA
Fu [19] 2019 China Forward-looking 30 15/15 65.6 9/21 MSIS Plasma 850 ng/ml Yes Yes NA NA
Li [13] 2019 China Retrospective 565 95/470 NA 248/317 ICM Plasma 1250 ng/ml No Yes NA NA
Huang [20] 2019 China Retrospective 101 31/70 64.9 NA ICM Serum 850 ng/ml Yes Yes NA NA
Xiong [15] 2019 China Forwardlooking 80 26/54 65.4 54/26 MSIS Serum 756 ng/ml Yes Yes NA NA
Xu [24] 2019 China Retrospective 318 129/189 NA NA ICM Plasma 1020 ng/ml FEU Yes Yes NA NA
  1. The control group was the aseptic loosening group. NA = not applicable