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Table 1 Summary of the study and demographic variables of the included studies

From: Preoperative hemoglobin and perioperative blood transfusion in major head and neck surgery: a systematic review and meta-analysis

Author

Year

n

Male n (%)a

Age ≥ 60 n (%)a

Osseous flap n (%)a

Low Hgb n (%)

PBT n (%)

Anemia/low Hgb Males (g/dL)

Anemia/low Hgb Females (g/dL)

PBT trigger (g/L)

Shah

2010

585

309 (67)

308 (53)

105 (18)

160 (27)

144 (25)

 ≤ 130

 ≤ 120

 

Perisanidis

2013

142

104 (73)

45 (32)

41 (29)

66 (46)

121 (85)

 ≤ 120

 ≤ 120

 

Abu-Ghanemb

2015

65

44 (68)

40 (62)

 

18 (28)

14 (22)

≤130

≤ 120

 

Danan

2015

167

114 (68)

 

29 (17)

 

137 (82)

  

100

Nguyenb

2018

64

   

37 (55)

19 (28)

 < 130

 < 120

70

Rogersb,d

2019

99

61 (62)

63 (64)

36 (36)

16 (19)d

26 (26)

 < 130

 < 120

80–90

Satoc

2019

69

42 (61)

 

25 (36)

 

13 (19)

   
  1. All included studies were retrospective cohort studies
  2. an – No. Male = No. Female; n – No. Age ≥ 60 = No. Age < 60; n – No. Osseous flap = No. Soft tissue flap
  3. bAuthors provided additional data upon contact
  4. cConference proceeding
  5. dHemoglobin data was available for 85 patients
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Journal of Otolaryngology - Head & Neck Surgery

ISSN: 1916-0216

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