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Table 4 Final forward stepwise regression results

From: Cross sectional study of performance indicators for English Primary Care Trusts: testing construct validity and identifying explanatory variables

Star Rating (ordered logit)   
Pseudo R2 = 0.1154   
Explanatory Variable Coefficient Z-value
GPs per 100,000 population -0.021 -1.28
Expenditure per capita -0.001 -0.69
Number of patients 0.000 -1.90
Index of Multiple Deprivation 0.020 1.50
Region (control = London):   
North West 2.626 5.08
North East 3.021 4.62
Yorkshire and Humberside 0.932 1.72
West Midlands 1.684 3.02
East Midlands 1.488 2.63
East 0.571 1.08
South East 0.694 1.39
South West 1.531 2.72
QOF Total   
R2 = 0.4527   
Explanatory Variable Coefficient t-value
GPs per 100,000 population 0.001 2.40
Expenditure per capita 0.000 -0.23
Number of patients 0.000 -0.56
Index of Multiple Deprivation -0.003 -10.96
Region (control = London):   
North West 0.029 3.11
North East 0.462 3.86
Yorkshire and Humberside 0.210 2.11
West Midlands 0.008 0.81
East Midlands 0.021 1.94
East 0.008 0.83
South East 0.239 2.57
South West 0.342 3.34
Constant 0.928 26.04
Mortality Ratio   
R2 = 0.3242   
Explanatory Variable Coefficient t-value
GPs per 100,000 population -0.232 -3.82
Expenditure per capita -0.024 -4.41
Number of patients 0.000 0.55
Index of Multiple Deprivation -0.125 -2.54
Region (control = London):   
North West 3.884 2.05
North East -0.227 -0.09
Yorkshire and Humberside -1.715 -0.86
West Midlands 9.932 4.79
East Midlands 4.290 2.02
East 6.001 2.99
South East 4.316 2.32
South West 3.416 1.67
Constant 138.0 19.36
Mean Equity Ratio   
R2 = 0.1448   
Explanatory Variable Coefficient t-value
GPs per 100,000 population -0.370 -2.62
Expenditure per capita 0.009 0.70
Number of patients 0.000 -0.17
Index of Multiple Deprivation -0.025 -0.22
Region (control = London):   
North West 22.21 5.09
North East 18.89 3.42
Yorkshire and Humberside 16.70 3.63
West Midlands 15.03 3.14
East Midlands 11.61 2.37
East 17.02 3.65
South East 10.55 2.44
South West 22.47 4.75
Constant 97.71 5.93
NHSLA Rating (ordered logit)   
Puesdo R2 = 0.0432   
Explanatory Variable Coefficient Z-value
GPs per 100,000 population 0.001 0.06
Expenditure per capita -0.001 -0.64
Number of patients 0.000 1.68
Index of Multiple Deprivation -0.026 -1.91
Region (control = London):   
North West 0.892 1.69
North East -0.416 -0.60
Yorkshire and Humberside 0.926 1.66
West Midlands 0.862 1.50
East Midlands -0.346 -0.58
East -0.467 -0.82
South East 0.046 0.09
South West 0.401 0.70
Patient Satisfaction Total   
R2 = 0.5155   
Explanatory Variable Coefficient t-value
GPs per 100,000 population 0.327 3.93
Expenditure per capita 0.018 2.37
Number of patients 0.000 -1.90
Index of Multiple Deprivation -0.649 -9.68
Region (control = London):   
North West 22.56 8.72
North East 24.51 7.49
Yorkshire and Humberside 19.92 7.31
West Midlands 15.53 5.48
East Midlands 21.94 7.57
East 12.07 4.39
South East 14.19 5.57
South West 21.29 7.59
Constant 349.48 35.86