Table 6 The multivariate logistic regression analysis of the risk factors for femoral head necrosis.

From: Comparison between headless cannulated screws and partially threaded screws in femoral neck fracture treatment: a retrospective cohort study

Risk factors

Coefficient

Standard error

Wald test statistic

P value

Odds ratio (OR)

95% confidence interval for OR

Garden classification type III-IV (fracture displacement)

4.111

1.541

7.118

0.008

61.012

2.977–1250.426

Garden index level III-IV (unsatisfactory reduction)

2.266

1.110

4.170

0.041

9.641

1.095–84.848

Trajectory angle

-0.234

0.104

5.008

0.025

0.792

0.645–0.971

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