Table 6 Demographic characteristic correlations with knowledge, attitudes, and practices in the assessment and management of perioperative HBL in orthopedic patients (N = 456).

From: Knowledge, attitude, and practices of nurses toward the assessment and management of perioperative hidden blood loss among orthopedic patients: A cross-sectional multicenter study

Variable

 

Knowledge

  

Attitudes

  

Practices

  

Frequency (%)

Mean ± SD

Test results

Effect size

Mean ± SD

Test results

Effect size

Mean ± SD

Test results

Effect size

Age

          

< 30 years

133 (29.2)

110.06 ± 31.09

F = 7.256

η² = 0.046

49.06 ± 8.80

F = 8.157

η² = 0.051

38.16 ± 9.57

F = 3.523

η² = 0.023

30–39 years

247 (54.2)

123.53 ± 29.60

p <  0.001

Small

50.06 ± 9.96

P <  0.001

Small

40.62 ± 9.10

p  = 0.015

Small

40–49 years

61 (13.4)

127.44 ± 32.22

  

54.59 ± 8.95

  

42.23 ± 9.73

  

≥ 50 years

15 (3.3)

124.60 ± 23.57

  

57.87 ± 4.50

  

42.13 ± 6.53

  

Work experience

         

1–5 years

116 (25.4)

113.69 ± 30.14

F = 4.254

η² = 0.018

47.59 ± 9.09

F = 9.328

η² = 0.014

38.06 ± 9.90

F = 4.250

η² = 0.018

6–9 years

95 (20.8)

119.02 ± 32.90

p = 0.015

Small

50.40 ± 9.16

p <  0.001

Small

40.35 ± 9.90

p = 0.015

Small

≥ 10 years

245 (53.7)

123.66 ± 29.95

  

52.16 ± 9.67

  

41.10 ± 9.10

  

Hospital level

         

Third-Level Class A

261 (57.2)

130.22 ± 24.54

F = 41.914

η² = 0.218

50.18 ± 10.26

F = 1.554

η² = 0.01

42.00 ± 8.10

F = 15.909

η² = 0.096

Third-Level Class B

98 (21.5)

119.53 ± 31.05

p < 0.001

Large

52.23 ± 9.95

p = 0.200

Small

40.60 ± 9.71

p <  0.001

Medium

Second-Level Class A

78 (17.1)

93.83 ± 31.77

  

50.74 ± 7.08

  

35.31 ± 10.12

  

Second-Level Class B

19 (4.2)

93.26 ± 24.69

  

48.11 ± 5.65

  

32.74 ± 9.96

  

Professional title

         

Nurse

50 (11.0)

104.98 ± 36.01

F = 7.980

η² = 0.066

47.78 ± 8.83

F = 9.134

η² = 0.075

36.56 ± 11.87

F = 4.947

η² = 0.042

Senior nurse

167 (36.6)

116.23 ± 32.86

p <  0.001

Medium

49.08 ± 10.06

p <  0.001

Medium

40.03 ± 9.71

p < 0.001

Small

Supervisor nurse

206 (45.2)

124.15 ± 26.53

  

51.26 ± 9.21

  

40.33 ± 8.15

  

Co-chief superintendent nurse

20 (4.4)

134.55 ± 22.71

  

59.20 ± 4.53

  

43.85 ± 7.01

  

Chief superintendent nurse

13 (2.9)

143.54 ± 24.97

  

58.38 ± 5.22

  

47.69 ± 8.55

  

Highest educational attainment

        

Associate degree

55 (12.1)

107.18 ± 32.54

F = 10.668

η² = 0.045

46.20 ± 9.91

F = 10.140

η² = 0.043

37.16 ± 10.90

F = 9.096

η²=0.039

Bachelor degree

389 (89.3)

121.11 ± 30.16

p < 0.001

Small

51.03 ± 9.33

p <  0.001

Small

40.31 ± 9.00

p <  0.001

Small

Postgraduate or above

12 (2.6)

148.83 ± 17.79

  

58.00 ± 9.31

  

49.42 ± 5.14

  

participated in specialized training in orthopedic nursing

       

Yes

51 (11.2)

138.14 ± 23.67

t = 5.542

Cohen’s d = 0.521

57.24 ± 8.40

t = 5.876

Cohen’s d = 0.553

47.75 ± 6.77

t = 8.105

Cohen’s d = 0.762

No

405 (88.8)

117.89 ± 30.93

p <  0.001

Medium

49.80 ± 9.42

p < 0.001

Medium

39.21 ± 9.18

p <  0.001

Medium

  1. Note: Higher scores indicated better knowledge, more positive attitudes, and stronger practice. On the attitude scale, items related to barriers were negatively framed and reverse-scored; therefore, higher scores reflected fewer perceived barriers. SD, standard deviation.