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Table 3 Association of procedure and patient characteristics with CT ratio

From: “It’s a precious gift, not to waste”: is routine cross matching necessary in orthopedics surgery? Retrospective study of 699 patients in 9 different procedures

Characteristics

CT Ratio (%)

P-value

Odds Ratio (95% CI)

< 2.5

> 2.5

Age (years)

46.02 ± 17.84

51.60 ± 18.10

< 0.001

 

Procedure

  

< 0.001

 

 Total Hip Replacement

14 (19.4)

58 (80.6)

  

 Total Knee Replacement

11 (8.6)

117 (91.4)

  

 Open Reduction Internal Fixation

30 (25.0)

90 (75.0)

  

 Closed Reduction Internal Fixation

20 (13.8)

125 (86.2)

  

 Minor Wound Debridement

37 (45.7)

44 (54.3)

  

 Major Wound Debridement

36 (62.1)

22 (37.9)

  

 Tumor Resection

9 (29.0)

22 (71.0)

  

 Arthroscopy

9 (22.5)

31 (77.5)

  

 Hand and Microvascular Surgeries

6 (25.0)

18 (75.0)

  

Gender

  

< 0.001

1.93 (1.33–2.80)

 Male

122 (29.3)

294 (70.7)

  

 Female

50 (17.7)

233 (82.3)

  

ASA Status

  

0.168

 

 ASA I

28 (22.2)

98 (77.8)

  

 ASA II

87 (22.9)

293 (77.1)

  

 ASA III

46 (27.7)

120 (72.3)

  

 ASA IV

10 (40.0)

15 (60.0)

  

Surgery Type

  

0.255

 

 Emergency

64 (22.4)

222 (77.6)

  

 lective

108 (26.2)

305 (73.8)

  

Use of Tourniquet

  

0.003

0.59 (0.42–0.83)

 Yes

84 (20.5)

326 (79.5)

  

 No

88 (30.4)

201 (69.6)