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Table 3 Bleeding events and relative risk with 95% CI for LMWH compared to UFH

From: Safety of low-molecular-weight heparin compared to unfractionated heparin in hemodialysis: a systematic review and meta-analysis

Study, year

Total bleeding events LMWH (n/N)

Total bleeding events UFH (n/N)

RR (95% CI)

Comments

Al-Saran et al.

3/23

0/23

7.00 (0.38–128.33)

3 minor bleedings with LMWH, controlled with dose adjustment

Bambauer et al.

3/27

6/27

0.50 (0.14–1.80)

No indication if minor or major bleeding events

Bramham et al.

0/110

4/110

0.11 (0.01–2.04)

4 minor bleeding episodes with UFH

Lord et al.

3/32

8/32

0.38 (0.11–1.29)

LMWH: 1 major and 2 minor bleedings; UFH: 8 minor bleedings

Nurmohamed et al.

3/35

0/35

7.00 (0.37–130.69)

3 minor bleeding events with LMWH

Saltissi et al.a

12/36

6/36

2.00 (0.84–4.75)

LMWH:1 major and 11 minor bleedings; UFH: 6 minor bleedings

Stefoni et al.

0/54

7/54

0.07 (0.00–1.14)

7 minor bleeding events with UFH

Schrader et al.b

0/35

0/35

excluded

n/a

Yang et al. (part 1)b

0/10

0/10

excluded

n/a

Summary

24/362

31/362

0.76 (0.26–2.22)

 
  1. aDetails of bleeding events extracted from Lim et al.
  2. bStudies excluded due to “zero cells” in both LMWH and UFH groups