Table 1 Mean difference and 95% limits of agreement between postcode-linked method and gold standard population weighted method, and between modelling method and gold standard population weighted method.
From: A method for modelling GP practice level deprivation scores using GIS
District | Number of practices |  | Postcode-linked score – gold standard score comparison | Modelled score – gold standard score comparison |
|---|---|---|---|---|
Doncaster | 46 | Mean difference (95% CI) | 5.24 * (1.84,8.63) | 1.07 ns (-0.33,2.46) |
| Â | Â | Upper limit of agreement (95% CI) | 27.65 (21.85,33.45) | 10.26 (7.88,12.64) |
| Â | Â | Lower limit of agreement (95% CI) | -17.17 (-22.97,-11.37) | -8.13 (-10.51,-5.75) |
Havering | 53 | Mean difference (95% CI) | 0.03 ns (-1.60,1.66) | -0.90 * (-1.28,-0.53) |
| Â | Â | Upper limit of agreement (95% CI) | 11.65 (8.86,14.44) | 1.76 (1.12,2.40) |
| Â | Â | Lower limit of agreement (95% CI) | -11.59 (-14.38,-8.80) | -3.57 (-4.21,-2.93) |
Warrington | 26 | Mean difference (95% CI) | 2.87 ns (-0.48,6.22) | 1.69 ns (-0.09,3.47) |
| Â | Â | Upper limit of agreement (95% CI) | 19.12 (13.40,24.85) | 10.32 (7.28,13.35) |
| Â | Â | Lower limit of agreement (95% CI) | -13.39 (-19.11,-7.66) | -6.93 (-9.97,-3.90) |
All three districts combined | 125 | Mean difference (95% CI) | 2.54 * (0.94,4.14) | 0.36 ns (-0.30,1.02) |
| Â | Â | Upper limit of agreement (95% CI) | 20.23 (17.57,22.83) | 7.67 (6.57,8.77) |
| Â | Â | Lower limit of agreement (95% CI) | -15.15 (-17.50,-12.50) | -6.95 (-8.04,-5.85) |