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Table 5 Results of multivariate analysis of risk factors for fractures after falls.

From: World Health Organization fracture risk assessment tool in the assessment of fractures after falls in hospital

A

      

Datasets

Items

Estimated coefficient (β)

Standard error for β

Sig.

OR

95% CI for OR

Development dataset

FRAX score

0.069

0.026

0.008

1.072

1.018 - 1.128

 

Constant

-7.865

0.572

<0.001

0.000

 

Test dataset

FRAX score

0.076

0.024

0.001

1.079

1.030 - 1.130

 

Constant

-7.726

0.524

<0.001

0.000

 

B

      

Datasets

Items

Estimated coefficient (β)

Standard error for β

Sig.

HR

95% CI for HR

Development dataset

FRAX score

0.063

0.025

0.012

1.065

1.014 - 1.119

Test dataset

FRAX score

0.065

0.022

0.003

1.067

1.022 - 1.114

C

      

Datasets

Items

Estimated coefficient (β)

Standard error for β

Sig.

OR

95% CI for OR

Development dataset

STRATIFY score

0.443

0.256

0.083

1.557

0.943 - 2.569

 

FRAX score

0.060

0.028

0.034

1.062

1.004 - 1.122

 

Constant

-8.358

0.697

<0.001

0.000

 

Test dataset

STRATIFY score

0.289

0.241

0.231

1.335

0.832 - 2.141

 

FRAX score

0.070

0.025

0.004

1.072

1.022 - 1.125

 

Constant

-8.020

0.603

<0.001

0.000

 

D

      

Datasets

Items

Estimated coefficient (β)

Standard error for β

Sig.

HR

95% CI for HR

Development dataset

STRATIFY score

0.330

0.257

0.200

1.391

0.840 - 2.302

 

FRAX score

0.056

0.027

0.035

1.058

1.004 - 1.115

Test dataset

STRATIFY score

0.153

0.240

0.523

1.165

0.729 - 1.864

 

FRAX score

0.064

0.022

0.004

1.066

1.020 - 1.114

  1. Various risk factors for falls, STRATIFY score and FRAX™ score were evaluated in development and test datasets to determine whether they are associated with fracture after falls by using multiple logistic regression analysis (A) and multivariate Cox's regression analysis (B). Significant factors were selected by using the stepwise selection method. In Tables C and D, both STRATIFY score and FRAX™ score were forcibly entered into the logistic model (C) and Cox's regression model (D). CI, confident interval; LOS, length of hospital stay; OR, odds ratio; HR, hazards ratio.
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BMC Health Services Research

ISSN: 1472-6963

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