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Table 3 Multivariate logistic regression models for BADL, IADL and global function assessment at 6 months

From: Factors related to functional prognosis in elderly patients after accidental hip fractures: a prospective cohort study

 

BADL model

IADL model

Global model

Variable

OR (95% CI)

p-value

OR (95% CI)

p-value

OR (95% CI)

p-value

Age

1.10 (1.07, 1.14)

<0.0001

1.16 (1.12, 1.20)

<0.0001

1.15(1.11, 1.20)

<0.0001

Sex

      

Male

Ref.

 

Ref.

 

Ref.

 

Female

1.09 (0.57, 2.06)

0.801

0.87 (0.44, 1.70)

0.675

1.24 (0.60, 2.59)

0.445

Cerebrovascular disease

      

No

Ref.

-

-

-

-

-

Yes

3.04 (1.11, 8.34 )

0.031

-

-

-

-

Baseline HRQoL

      

SF-12 PCS

0.69 (0.52, 0.92)

0.010

-

-

-

-

SF-12 MCS

0.75 (0.60, 0.94)

0.012

0.66 (0.52, 0.84)

0.001

0.70 (0.54, 0.92)

0.011

LCF of womac

1.36 (1.20, 1.55)

<0.0001

1.36 (1.23, 1.51)

<0.0001

1.47 (1.30, 1.67)

<0.0001

Living status before the fall

      

Alone

-

-

Ref.

-

Ref.

-

Alone, receiving social support

-

-

2.44 (0.87, 6.86)

0.091

3.79 (1.28, 11.21)

0.023

With a relative

-

-

3.29 (1.23, 8.83 )

0.018

3.92 (1.42, 10.79)

0.013

Goodness–of-fit statistics

      

Hosmer-Lemeshow

p = 0.702

 

p = 0.869

 

p = 0.310

 

R square/adjusted R square

0.275 / 0.394

 

0.257 / 0.380

 

0.244 / 0.389

 

AUC

0.835

 

0.829

 

0.847

 
  1. OR: Odds Ratio; 95% CI: 95% Confidence Intervals. BADL model: multivariate model considering status at 6 months (deteriorated or not) based on ability to perform basic activities of daily living (BADL) as assessed using the Barthel Index; patients’ functional status was considered to have deteriorated if they obtained post-fall scores of <90 points or a pre-post score decrease of more than 10%. IADL model: multivariate model considering status at 6 months based on ability to perform instrumental activities of daily living (IADL) as assessed using Lawton Scale; patient functional status was considered to have deteriorated if they obtained post fall scores of <5 points or a pre-post score decrease of 2 points. Global model: multivariate model considering status at 6 months based jointly on BADL and IADL assessments. Estimations presented: for age refer to 1-unit increases; and for baseline health-related quality of life (HRQoL) refer to 10-unit increases in the respective score scales. LCF (WOMAC physical function domain); SF-12 PCS (SF-12 physical domain); SF-12 MCS (SF-12 mental domain); AUC (area under the curve).