Arterial complications, venous thromboembolism and deep venous thrombosis prophylaxis after anterior cruciate ligament reconstruction: A systematic review

Table 2 Risk of bias of studies reporting venous complications

Ref.	Study design	Patient selection1	Follow-up2	Classification3
Adala et al[6]	PC	+	-	+
Born et al[26]	RS	+	-	-
Cullison et al[10]	PC	?	-	+
Dong et al[8]	RS	?	-	+
Ettema et al[27]	RS	-	?	-
Gaskill et al[2]	RS	+	-	-
Hetsroni et al[30]	RS	?	?	-
Hirota et al[22]	PC	-	-	+
Hirota et al[25]	PC	-	-	+
Jameson et al[28]	RS	?	-	-
Jaureguito et al[7]	RS	+	-	+
Lind et al[23]	PC	+	?	-
Maletis et al[11]	PC	?	?	-
Marlovits et al[20]	RCT	-	-	+
Mohtadi et al[21]	RCT	+	+	-
Struijk-Mulder et al[5]	PC	+	-	+
Sun et al[29]	RS	+	-	+
Williams et al[24]	PC	-	-	+
Ye et al[4]	RS	?	-	+

¹Inclusion of consecutive patients;

²Was follow-up period adequate (minimum 1 year) for exposure of adverse event?

³Was the used classification shown to be valid and reliable? +: Yes; -: No; ?: Not clear; RCT: Randomized controlled trial; PC: Prospective cohort study; RS: Retrospective study.