Table 3.

Spearman correlations between measures of health gain and incentive payment

	Measure of health gain	Payment in 2004 QOF	Payment in 2006 QOF
Primary analysis	1% improvement in achievable lives saved and incentive gained	rho = 0.216 p = 0.334 n = 22	rho = -0.026 p = 0.917 n = 19
	1% increase in achievable QALYs and incentive gained	rho = 0.427 p = 0.252 n = 9	rho = 0.368 p = 0.240 n = 12
Secondary analysis	Lives saved to target and maximum incentive payment	rho = 0.183 p = 0.416 n = 22	rho = -0.186 p = 0.446 n = 19
	QALYs gained to target and maximum incentive payment	rho = 0.237 p = 0.539 n = 9	rho = 0.183 p = 0.568 n = 12
Sensitivity analysis 1	Maximum achievable lives saved and maximum incentive payment	rho = 0.213 p = 0.342 n = 22	rho = -0.087 p = 0.723 n = 19
	Maximum achievable QALYs gained and maximum incentive payment	rho = 0.238 p = 0.537 n = 9	rho = 0.184 p = 0.568 n = 12
	QOF = Quality and Outcomes Framework