Table 1.

Sample characteristics of GPPS responders across England for each survey waves

Jul–Sep 2012Jan–Mar 2013Jul–Sep 2013Jan–Mar 2014Jul–Sep 2014Jan–Mar 2015Jul–Sep 2015 Jan–Mar 2016Jan–Mar 2017
Demographic characteristicsa
  % female0.51(0.50)0.51(0.50)0.51(0.50)0.50(0.50)0.51(0.50)0.51(0.50)0.51(0.50)0.51(0.50)0.51(0.50)
  % aged 18–240.10(0.30)0.10(0.30)0.10(0.30)0.10(0.30)0.10(0.30)0.10(0.29)0.10(0.30)0.10(0.30)0.09(0.29)
  % aged 25–340.18(0.38)0.18(0.38)0.18(0.38)0.18(0.38)0.17(0.38)0.17(0.38)0.18(0.38)0.18(0.38)0.17(0.38)
  % aged 35–440.18(0.39)0.18(0.38)0.18(0.38)0.18(0.38)0.17(0.38)0.18(0.38)0.17(0.38)0.17(0.38)0.17(0.38)
  % aged 45–540.19(0.39)0.19(0.39)0.19(0.39)0.19(0.39)0.19(0.39)0.19(0.39)0.19(0.39)0.19(0.39)0.19(0.39)
  % aged 55–640.15(0.36)0.15(0.35)0.15(0.36)0.15(0.36)0.15(0.36)0.15(0.36)0.15(0.36)0.15(0.36)0.15(0.36)
  % aged 65–740.11(0.32)0.12(0.32)0.12(0.32)0.12(0.32)0.12(0.33)0.12(0.33)0.12(0.33)0.12(0.33)0.13(0.33)
  % aged 75–840.07(0.25)0.07(0.25)0.07(0.25)0.07(0.25)0.07(0.25)0.07(0.25)0.07(0.25)0.07(0.25)0.07(0.25)
  % aged ≥850.02(0.16)0.03(0.16)0.03(0.16)0.03(0.16)0.03(0.16)0.03(0.16)0.03(0.16)0.03(0.16)0.03(0.16)
  IMD 201522.00(15.65)21.58(15.45)21.62(15.53)21.64(15.52)21.64(15.53)21.64(15.49)21.62(15.50)21.69(15.48)21.70(15.51)
EQ-5D-5La
  Utility scoreb0.821(0.23)0.825(0.22)0.821(0.23)0.822(0.22)0.822(0.22)0.823(0.23)0.823(0.22)0.820(0.23)0.818(0.23)
  Mobility4.593(0.85)4.612(0.83)4.594(0.85)4.607(0.84)4.597(0.84)4.610(0.83)4.604(0.84)4.612(0.83)4.612(0.83)
  Self-care4.842(0.57)4.844(0.57)4.843(0.57)4.843(0.57)4.847(0.56)4.843(0.57)4.846(0.57)4.844(0.57)4.840(0.58)
  Usual activities4.566(0.87)4.583(0.86)4.568(0.87)4.577(0.86)4.573(0.86)4.581(0.86)4.578(0.86)4.580(0.86)4.580(0.86)
  Pain/discomfort4.272(0.93)4.295(0.92)4.274(0.93)4.281(0.92)4.277(0.93)4.285(0.92)4.283(0.93)4.279(0.92)4.274(0.93)
  Anxiety/depression4.533(0.82)4.535(0.82)4.532(0.83)4.524(0.82)4.536(0.82)4.520(0.83)4.530(0.83)4.503(0.85)4.482(0.86)
  N425 734442 215400 629409 923381 628390 748378 241376 764732 434
  • a Data presented as weighted mean (SD).

  • b Utility score of 1 indicates perfect health. GPPS = General Practice Patient Survey. IMD = Index of Multiple Deprivation. SD = standard deviation.