Table 3

Practice and GP characteristics
Variable
 Cases
 Controls
 Difference [95% Confidence Interval]
 Difference %






Unmatched
 Matched

GP characteristics
Proportion of female GPs
 0.37
 0.34
 0.35
 0.02 [-0.06 to 0.12]
 5.7%
Average age of GPs
 46.2
 45.5
 44.1
 2.1 [-1.6 to 3.5]
 4.7%
Proportion of GPs over 55 years
 0.19
 0.12
 0.10
 0.09 [0.03 to 0.16]
 90%
Practice size
Numbers of GPs per practice
 2.9
 4.9
 3.9
 -1.0 [-1.7 to -0.4]
 -25.7%
Single-handed practice
 0.23
 0.11
 0.11
 0.12 [-0.07 to 0.21]
 109%
One or two partner practice
 0.44
 0.35
 0.27
 0.17 [-0.07 to 0.31]
 62.9%
Services offered
Practice does not offer minor surgery
 0.18
 0.04
 0.08
 0.10 [-0.04 to 0.19]
 125%
Minor surgery payments (£ per capita)
 0.67
 0.92
 0.82
 -0.25 [-0.42 to -0.09]
 -18.3%
Night visit claims per capita
 0.03
 0.03
 0.03
 -0.00 [-0.002,0.004]
 0.0%
Quality markers
Training practice
 0.18
 0.25
 0.21
 -0.03 [-0.2, to 0.01]
 -14.3%
Practice Accreditation
 0.19
 0.25
 0.24
 -0.05 [-0.16 to 0.14]
 -20.9%
Quality Practice Award
 0.00
 0.06
 0.04
 -0.04 [-0.06 to -0.01]
 100%
Personal Medical Services
 0.00
 0.03
 0.06
 -0.06 [-0.10 to -0.02]
 100%
Resources/workload
GPs per 1000 population
 0.57
 0.88
 0.66
 -0.09 [-0.14 to,-0.03]
 -15.7%
WTE GPs per 1000 population
 0.58
 0.90
 0.73
 -0.15 [-0.29 to -0.02]
 -21.6%
Total GMS payments
 47.9
 57.8
 53.4
 -4.5 [-6.1 to -2.2]
 -10.3

McLean International Journal for Equity in Health 2008 7:18   doi:10.1186/1475-9276-7-18

Open Data