# Table 2

Regression results

Change in Barthel score1

n = 398

Change in EQ5D score2

n = 337

Length of care (days)

n = 403

Cost (£s)

n = 403

Age

0.3085

(0.2272)

0.0336

(0.0366)

-0.0490

(0.0890)

0.1273***

(0.0363)

Age squared

-0.0022

(0.0014)

-0.0002

(0.0002)

-0.0002

(0.0005)

-0.0008***

(0.0002)

Gender

0.2852

(0.2469)

0.0670

(0.0365)

-0.0225

(0.0754)

0.0352

(0.0379)

Baseline Barthel score

-0.2854***

(0.0794)

-0.0136

(0.0111)

0.0039

(0.0083)

Baseline EQ5 D score

-0.4363***

(0.0651)

0.1067

(0.1026)

0.0450

(0.1075)

0.5030

(0.3478)

0.0044

(0.0400)

-0.2000**

(0.0832)

0.0565

(0.0618)

Residential care

0.6126

(0.6976)

0.0582*

(0.0327)

0.0835

(0.2587)

1.5892***

(0.3578)

Length of care

-0.0003

(0.0057)

-0.0003

(0.0005)

-

0.0257***

(0.0030)

Ratio of support to qualified staff

0.2277

(0.4819)

0.0464*

(0.0254)

-0.0564

(0.1042)

0.0600

(0.1076)

Number of different staff types

-0.0529

(0.1532)

0.0161

(0.0103)

0.0470

(0.0608)

-0.1827**

(0.0715)

Total number of staff

-0.0064

(0.0258)

-0.0005

(0.0011)

0.0010

(0.0104)

0.2026***

(0.0646)

Total number of staff squared

-0.0085***

(0.0022)

Constant

-4.9479

(8.8322)

1.1658

(1.4717)

6.0765

(3.7505)

0.8401

(1.535)

R-squared

0.1932

0.2505

0.0318

0.2730

Block F-test3

<0.0001

<0.0001

-

-

RESET test

0.0002

0.0441

-

-

1 Positive changes reflect gains in a patient's level of independence.

2 Positive changes reflect improvements in a patient's health related quality of life.

3 Tests the hypothesis that all parameters are equal to zero.

* 0.10 > p-value > 0.05

** 0.05 > p-value > 0.01

*** p-value <0.01

Dixon et al. BMC Health Services Research 2010 10:221   doi:10.1186/1472-6963-10-221