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Table 4 Prevalence and standardised prevalence ratios of asthma by medical practice

From: Practical utility of general practice data capture and spatial analysis for understanding COPD and asthma

 

Active patients

Observed cases

Expected cases

Prevalence (=O/A*100%)

SPR(=O/E)

Practice 1

12,032

1320

1297

11.0

1.02

Practice 2

8004

815

855

10.2

0.95

Practice 3

7085

828

753

11.7

1.10

Practice 4

4140

332

440

8.0

0.76

Practice 5

2464

162

266

6.6

0.61

Total

33,725

3457

3605

10.3

0.96

  1. Note: SPR Standardised prevalence ratio
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BMC Health Services Research

ISSN: 1472-6963

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