Table 1. Cost-effectiveness of APPLE schools.

		YEARS WITH EXCESS WEIGHT		YEARS WITH OBESITY		YEARS WITH CHRONIC DISEASE		QALYs
SCENARIO	Incremental Cost*	Incremental Effect*	ICER	Incremental Effect*	ICER	Incremental Effect*	ICER	Incremental Effect*	ICER
Discount = 3%—Base results
1	1963.2	-1.26	1,555	-1.15	1,709	-0.14	14,218	0.06	33,421
2	1963.2	-1.04	1,880	-0.95	2,065	-0.11	17,185	0.05	40,396
3	1963.2	-1.82	1,081	-1.65	1,187	-0.20	9,878	0.08	23,216
Discount = 0%
1	1988.0	-1.52	1,312	-1.36	1,464	-0.26	7,599	0.07	28,530
2	1988.0	-1.25	1,586	-1.12	1,770	-0.22	9,185	0.06	34,485
3	1988.0	-2.18	911	-1.95	1,017	-0.38	5,279	0.10	19,819
Discount = 1%
1	1979.6	-1.42	1,398	-1.28	1,552	-0.21	9,534	0.07	30,102
2	1979.6	-1.17	1,689	-1.06	1,876	-0.17	11,524	0.05	36,386
3	1979.6	-2.04	971	-1.84	1,078	-0.30	6,624	0.09	20,911
Discount = 2%
1	1971.3	-1.33	1,479	-1.21	1,633	-0.17	11,742	0.06	31,761
2	1971.3	-1.10	1,787	-1.00	1,974	-0.14	14,192	0.05	38,390
3	1971.3	-1.92	1,027	-1.74	1,135	-0.24	8,158	0.09	22,063
Discount = 4%
1	1955.2	-1.20	1,629	-1.10	1,779	-0.12	16,954	0.06	35,037
2	1955.2	-0.99	1,968	-0.91	2,150	-0.10	20,492	0.05	42,350
3	1955.2	-1.73	1,131	-1.58	1,236	-0.17	11,779	0.08	24,339
Discount = 5%
1	1947.4	-1.15	1,698	-1.06	1,844	-0.10	19,938	0.05	36,590
2	1947.4	-0.95	2,053	-0.87	2,229	-0.08	24,099	0.04	44,227
3	1947.4	-1.65	1,180	-1.52	1,281	-0.14	13,852	0.08	25,417

*per 10 children (1 from each of the 10 grade 5 cohorts).

Scenarios: 1-The annual decline in obesity is maintained for the 2 intervention years then remains at the level reached in 2 years for another 8 years; 2- After the two intervention years, the effect starts waning by 5% per year; 3- The annual decline in obesity is maintained for 4 years then remains at the level reached in 4 years for another 6 years