Table 2 Adjusted 'ratio of ratios' for all outcome measures, comparing practices across groups and between pre-intervention and intervention years

Population (50 years and older)

n

13556

13619

72492

72675

Admissions

a

1496

1401

8025

8246

Ever admitted

e

1095

1034

5954

5998

Re-admitted

r

255

226

1365

1421

Analysis

Admissions/registered patient

a/n

0.1104

0.1029

0.1107

0.1135

0.909

0.909

0.841

0.984

0.018

Proportion registered patients ever admitted in year

e/n

0.0808

0.0759

0.0821

0.0825

0.935

0.935

0.855

1.022

0.138

Single admitters as proportion of all registered patients

(e-r)/n

0.0620

0.0593

0.0633

0.0630

0.962

0.962

0.869

1.065

0.457

Re-admitters as a proportion of all registered patients

r/n

0.0188

0.0166

0.0188

0.0196

0.850

0.850

0.700

1.030

0.097

Proportion admitted patients with multiple admissions

r/e

0.233

0.219

0.229

0.237

0.908

0.908

0.765

1.078

0.265

Total admissions per re-admitter

(a-e+r)/r

2.573

2.624

2.517

2.582

0.994

0.995

0.940

1.053

0.820

Re-admissions per re-admitter

(a-e)/r

1.573

1.624

1.517

1.582

0.990

0.991

0.903

1.088

3^rd & higher order admissions per re-admitter

(a-e-r)/r

0.573

0.624

0.517

0.582

0.968

0.971

0.753

1.251

Re-admissions per admitter

(a-e)/e

0.366

0.355

0.348

0.375

0.900

0.900

0.772

1.050

0.181

Re-admissions as a proportion of all admissions

(a-e)/a

0.268

0.262

0.258

0.273

0.925

0.926

0.826

1.037