Skip to main content

Table 3 Ordinal logistic regression of the risk factors for blood loss in AS patients with hip involvement undergoing THA

From: Factors associated with blood loss in ankylosing spondylitis patients with hip involvement undergoing primary total hip arthroplasty: a cross-sectional retrospective study of 243 patients

Parameter

OR (95% CI)

P value

Male sex

3.287 (1.022 to 10.567)

0.046

BMI

0.960 (0.897 to 1.027)

0.236

Bilateral THA

13.896 (4.950 to 39.011)

< 0.0001

Hip ROM = 0°

2.513 (1.277 to 4.946)

0.008

BASRI-hip score of 4

0.700 (0.345 to 1.421)

0.324

Elevated ESR level

3.042 (1.320 to 7.014)

0.009

Elevated CRP level

0.885 (0.415 to 1.888)

0.752

TT (s)

1.189 (0.880 to 1.606)

0.260

APTT (s)

0.964 (0.901 to 1.032)

0.291

Fibrinogen(g/L)

0.780 (0.562 to 1.081)

0.136

Platelet level( × 109/L)

0.997 (0.992 to 1.002)

0.211

Preoperative Hb level (g/L)

1.043 (1.017 to 1.070)

0.001

Iliopsoas and adductor release

1.934 (0.860 to 4.350)

0.111

Administration of TXA

0.252 (0.134 to 0.472)

< 0.0001

Chemoprophylaxis of thrombosis

1.814 (0.896 to 3.674)

0.098

Operating time (min)

1.009 (1.003 to 1.016)

0.004

  1. AS ankylosing spondylitis, THA total hip arthroplasty, OR odds ratio, CI confidence interval, BMI body mass index, ROM range of motion, BASRI-hip Bath Ankylosing Spondylitis Radiology Hip Index, ESR erythrocyte sedimentation rate, CRP C-reactive protein, TT thromboplastin time, APTT activated partial thromboplastin time, Hb hemoglobin, TXA tranexamic acid