{"version":"ymca-dpp-v1","organization":"YMCA of Greater San Francisco","program":"Additional SF diabetes-prevention offers","geography":"Conditional San Francisco resident cohort; adult program, not children","verifiedMarginalOffer":false,"reviewed":"2026-09-07","denominator":"USD per 10 incremental QALYs","formula":"Q = fundingAdditionality × (extraKg × utilityPerKg × transfer × Σ retention[t]/1.03^(t+0.5) − harmQalys); price = 10 × cost / Q if Q > 0","scenarios":[{"name":"Favorable joint scenario","cost":200,"extraKg":3.4,"utilityPerKg":0.002,"transfer":1,"retention":[0.5,1,1,1,1,0.5],"fundingAdditionality":0.8,"harmQalys":0},{"name":"Central best guess","cost":600,"extraKg":2.3,"utilityPerKg":0.0014,"transfer":0.75,"retention":[0.5,1,0.75,0.25],"fundingAdditionality":0.5,"harmQalys":0},{"name":"Pessimistic positive scenario","cost":1200,"extraKg":1.1,"utilityPerKg":0.0007,"transfer":0.25,"retention":[0.25,0.25],"fundingAdditionality":0.2,"harmQalys":0}],"sources":[{"publisher":"YMCA Greater SF","title":"Current local diabetes prevention program","url":"https://www.ymcasf.org/program/diabetes-prevention/","published":"Undated","sourceType":"Provider program disclosure","retrieved":"2026-09-07"},{"publisher":"American Journal of Public Health","title":"Ackermann et al.: randomized YMCA offer trial","url":"https://pubmed.ncbi.nlm.nih.gov/26378828/","published":"2015-09-17","sourceType":"Randomized trial","retrieved":"2026-09-07"},{"publisher":"Obesity","title":"Ackermann et al.: weight change and health utility","url":"https://onlinelibrary.wiley.com/doi/10.1038/oby.2009.114","published":"2009","sourceType":"Observational utility association","retrieved":"2026-09-07"},{"publisher":"Diabetes Care","title":"Kuo et al.: prospective NDPP cost and QALY analysis","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC12178621/","published":"2024-11-20","sourceType":"Nonrandomized prospective comparison","retrieved":"2026-09-07"},{"publisher":"SF Health Service System","title":"YMCA partnership and existing funded cohorts","url":"https://sfhss.org/dpp","published":"Undated","sourceType":"Public payer program","retrieved":"2026-09-07"},{"publisher":"DHCS","title":"Medi-Cal diabetes prevention benefit","url":"https://www.dhcs.ca.gov/services/medi-cal-resources/diabetes-prevention-program-diabetes-prevention-program/","published":"Undated","sourceType":"Public benefit rules","retrieved":"2026-09-07"}],"evaluatedScenarios":[{"name":"Favorable joint scenario","cost":200,"extraKg":3.4,"utilityPerKg":0.002,"transfer":1,"retention":[0.5,1,1,1,1,0.5],"fundingAdditionality":0.8,"harmQalys":0,"netQalys":0.024916328096154565,"costPerTenQalys":80268.64922800033,"maximumCostFor100k":249.16328096154564,"equivalentYears":4.580207370616648},{"name":"Central best guess","cost":600,"extraKg":2.3,"utilityPerKg":0.0014,"transfer":0.75,"retention":[0.5,1,0.75,0.25],"fundingAdditionality":0.5,"harmQalys":0,"netQalys":0.0028633441268691526,"costPerTenQalys":2095451.9380667459,"maximumCostFor100k":28.633441268691527,"equivalentYears":2.3712994839496093},{"name":"Pessimistic positive scenario","cost":1200,"extraKg":1.1,"utilityPerKg":0.0007,"transfer":0.25,"retention":[0.25,0.25],"fundingAdditionality":0.2,"harmQalys":0,"netQalys":0.00001869136158614814,"costPerTenQalys":642007803.6954249,"maximumCostFor100k":0.1869136158614814,"equivalentYears":0.48548991132852304}]}