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Table 2 Primary outcome data

From: Clopidogrel and hip fractures, is it safe? A systematic review and meta-analysis

 

CG transfusion exposures/total pt

NCG transfusion exposures/total pt

P-value

CG mean total units transfused per patienta

NCG mean total units transfused per patienta

P-value

CG postop Hb

(g/dL)a

NCG postop Hb

(g/dL)a

P-value

CG drop in Hb

(g/dL)a

NCG drop in Hb

(g/dL)a

P-value

Harty et al 2007 [68]

      

9.8

9.6

0.68

   

Johansen et al 2008 [56]

   

1.0

0.2

-

   

3.7

2.4

0.01

Sim and Gonski 2009 [57]

CG vs NG

4/21

37/114

0.30

   

10.7 (1.7)

10.3 (1.6)

0.44

   

Sim and Gonski 2009 [57]

CG <5 vs CG >5

2/16

2/5

>0.05

   

10.3

10.9

>0.05

   

Cox et al 2009 [58]

   

0.9

0.2

    

3.1

1.8

<0.05

Nydick et al 2010 [53]

16/23

12/27

0.13

      

1.50

1.77

0.54

Chechik et al 2011 [52]

   

1.38 (0.98)

1.09 (1.38)

>0.05

      

Wallace et al 2012 [63]

29/52

18/58

0.01

   

9 (1.9)

9.5 (1.7)

0.41

   

Collinge et al 2012 [62]

22/40

342/619

0.89

1.4 (1.7)

1.5 (2.3)

0.50

10.1 (1.2)

10.2 (1.2)

0.52

   

Chechik et al 2012 [59]

6/30

9/30

0.38

0.37

0.47

0.64

   

2.6

1.8

0.19

Hossain et al 2013 [61]

4/50

2/52

0.37

2.0 (0)

2.5 (0.7)

0.16

10.8 (1.5)

11.1 (1.5)

0.37

   

Feely et al 2013 [54]

9/40

14/80

0.51

2.1 (2.1)

2.1 (3.5)

0.49

9.1 (1.2)

9.0 (1.1)

0.64

3.0 (1.7)

3.5 (1.6)

0.08

Al Khudairy et al 2013 [60]

6/24

8/23

>0.05

0.8 (1.6)

0.7 (1.1)

>0.05

   

1.5

1.1

>0.05

Wordsworth et al 2013 [55]

9/30

309/1195

0.67

0.67

0.55

0.54

      

Manaqibwala et al 2014 [64]

   

0.9 (1.1)

0.6 (1.4)

0.23

10.3 (2.2)

11.4 (1.5)

0.07

0.8 (1.0)

0.6 (1.3)

0.32

  1. aValues are mean (Standard Deviation)