Cost-effectiveness of a universal strategy of brief dietary intervention for primary prevention in primary care: population-based cohort study and Markov model

Table 3 Effect of varying the unit cost of intervention

	Annual unit cost of intervention
	0.2 GP consultations per year (£7 per participant year)	Cost equivalent to one GP consultation per year (£35 per participant year)	Cost equivalent to two GP consultations per year (£70 per participant year)
Incremental QALYs^a	4.3 (-8.8 to 18.0)	4.3 (-8.8 to 18.0)	4.3 (-8.8 to 18.0)
Incremental cost^a	16,939	139,755	293,276
Incremental cost^a	(-62,385 to 97,256)	(60,446 to 220,059)	(213,985 to 373,563)
Net health benefit^a,b	3.8	-0.32	-5.4
Net health benefit^a,b	(-9.7 to 17.6)	(-13.8 to 13.5)	(-18.9 to 8.4)
Probability cost-effective	66.7	47.9	25.6

^adiscounted at 3.5%; ^bnet health benefit at a threshold of £30,000 per QALY.
Figures are expressed per 1,000 participants entering the model and represent mean and 95% range of 2,000 simulations.

ISSN: 1478-7547