Table 4.

Sensitivity analysis 2, Spearman correlations between measures of health gain and incentive payment

Measure of health gain	2004 QOF payment (rcts only)	2006 QOF payment (rcts only)	2004 QOF payment (without BP5)	2006 QOF payment (without BP5)
1% improvement in achievable lives saved and incentive gained	Rho = 0.058 p = 0.111 n = 11	Rho = 0.058 p = 0.111 n = 11	Rho = 0.137 p = 0.553 n = 21	Rho = -0.147 p = 0.561 n = 18
1% increase in achievable QALYs and incentive gained	Rho = 0.450 p = 0.310 n = 7	Rho = 0.611 p = 0.108 n = 8	Rho = 0.180 p = 0.670 n = 8	Rho = 0.178 p = 0.601 n = 11
lives saved to target and maximum incentive payment	Rho = 0.381 p = 0.247 n = 11	Rho = 0.263 p = 0.434 n = 11	Rho = 0.095 p = 0.683 n = 21	Rho = -0.326 p = 0.186 n = 18
QALYs gained to target and maximum incentive payment	Rho = 0.148 p = 0.751 n = 7	Rho = 0.366 p = 0.373 n = 8	Rho = -0.098 p = 0.818 n = 8	Rho = -0.064 p = 0.851 n = 11
Maximum achievable lives saved and maximum incentive payment	Rho = 0.428 p = 0.189 n = 11	Rho = 0.412 p = 0.208 n = 11	Rho = 0.130 p = 0.572 n = 21	Rho = -0.223 p = 0.373 n = 18
Maximum achievable QALYs gained and incentive payment	Rho = 0.150 p = 0.749 n = 7	Rho = 0.368 p = 0.370 n = 8	Rho = -0.098 p = 0.817 n = 8	Rho = -0.065 p = 0.851 n = 11