Table 5

Associations between covariates of interest and consultation volume, incidence rate ratios (and 95% confidence intervals) from main negative binomial regression model

ParameterAll consultations – all staffAll consultations – GPsFace-to-face consultations – all staffFace-to-face consultations – GPs
Year1.046
(1.045 to 1.047)
1.028
(1.028 to 1.029)
0.995
(0.994 to 0.997)
0.988
(0.986 to 0.989)
List size (per 1000 patients)1.003
(1.002 to 1.004)
0.997
(0.996 to 0.998)
1.001
(0.998 to 1.003)
0.992
(0.990 to 0.995)
Consultation group
Bottom 90%Reference category
Top 10%5.038
(5.007 to 5.068)
5.603
(5.560 to 5.647)
4.992
(4.917 to 5.068)
5.253
(5.171 to 5.337)
IMD deprivation quintile
1 (least deprived)Reference category
21.005
(0.994 to 1.016)
1.019
(1.005 to 1.033)
0.993
(0.967 to 1.020)
1.044
(1.015 to 1.073)
31.048
(1.037 to 1.059)
1.049
(1.035 to 1.063)
1.038
(1.011 to 1.065)
1.076
(1.047 to 1.106)
41.019
(1.009 to 1.030)
1.046
(1.032 to 1.060)
0.981
(0.956 to 1.006)
1.058
(1.030 to 1.087)
 5 (most deprived)1.025
(1.015 to 1.036)
0.993
(0.980 to 1.006)
0.997
(0.972 to 1.023)
1.007
(0.981 to 1.035)
Region
North EastReference category
North West0.926
(0.899 to 0.953)
0.995
(0.958 to 1.034)
1.033
(0.961 to 1.111)
0.985
(0.913 to 1.063)
Yorkshire and Humber0.952
(0.920 to 0.985)
1.028
(0.984 to 1.075)
1.023
(0.940 to 1.113)
1.003
(0.918 to 1.096)
East Midlands0.898
(0.867 to 0.930)
0.912
(0.872 to 0.955)
0.963
(0.883 to 1.050)
0.915
(0.835 to 1.002)
West Midlands0.840
(0.815 to 0.865)
1.034
(0.994 to 1.074)
1.074
(0.998 to 1.157)
1.065
(0.986 to 1.150)
East of England0.853
(0.827 to 0.880)
0.946
(0.909 to 0.985)
1.012
(0.937 to 1.092)
0.960
(0.886 to 1.040)
South West0.954
(0.926 to 0.983)
1.085
(1.043 to 1.128)
1.256
(1.166 to 1.353)
1.080
(0.999 to 1.168)
South Central0.844
(0.819 to 0.870)
0.952
(0.916 to 0.990)
1.100
(1.021 to 1.186)
1.052
(0.972 to 1.138)
London0.738
(0.716 to 0.760)
0.922
(0.887 to 0.958)
0.895
(0.832 to 0.964)
0.918
(0.850 to 0.992)
South East Coast0.830
(0.805 to 0.855)
0.928
(0.893 to 0.964)
0.987
(0.918 to 1.063)
1.000
(0.926 to 1.080)
Northern Ireland1.150
(1.115 to 1.187)
1.446
(1.389 to 1.506)
1.087
(1.006 to 1.174)
1.128
(1.040 to 1.223)
Scotland0.785
(0.763 to 0.808)
1.042
(1.004 to 1.081)
1.249
(1.163 to 1.340)
1.207
(1.121 to 1.300)
Wales0.883
(0.858 to 0.909)
0.969
(0.934 to 1.006)
1.045
(0.973 to 1.123)
1.007
(0.934 to 1.086)
  • GP, general practitioner; IMD, Index of Multiple Deprivation.