Cross-model validation of public health microsimulation models; comparing two models on estimated effects of a weight management intervention

Table 2 QALYs and cases of and utility decrements associated with cardiovascular disease, dementia, and diabetes

		Health Checks model		Percentage difference
	SPHR Model	Original	Standardisation steps applied	Original	Standardisation steps applied
QALYs	11.37 [10.51, 12.16]	28.4 [27.7, 29.2]	13.11 [12.76, 13.48]		15%
Cases (per 1000)
CVD	411 [231, 632]	350 [345, 359]	350 [341, 360]	-15%	-15%
Stroke	208 [110, 324]	119 [114, 126]	119 [115, 127]	-42%	-42%
Dementia	229 [203, 287]g	118 [113, 125]	99 [96, 105]	-48	-57%
Diabetes	356 [164, 486]	561 [550, 570]	546 [535, 555]	+ 58%	+ 53%
Utility Decrements
CVD	0.760	-0.12
Stroke	0.629	-0.21
Diabetes	0 (complications only)	0
Dementia	0.478–0.93	-0.12

Note the SPHR decrements are applied using the multiplication method; the HC uses the addition method. QALY– Quality Adjusted Life Year, SPHR– School for public health
*With standardisation steps applied

ISSN: 1471-2458