Table 3.

Bootstrapped Adjusted Incremental Outpatient Cost per QALY Results (2009 dollars)¹

	Mean Incremental Cost per QALY Ratio	Interquartile Range
FQHC Perspective2
SF-12 QALY*	33,217	18,744 – 39,298
QWB QALY	35,762	20,336 – 44,299
Depression-free day .2 QALY	29,428	21,588 – 36,740
Depression-free day .4 QALY	14,714	10,794 – 18,370
National Perspective3
SF-12 QALY*	25,728	14,684 – 30,045
QWB QALY	28,017	16,044 – 34,418
Depression-free day .2 QALY	23,158	16,418 – 29,326
Depression-free day .4 QALY	11,579	8,209 – 14,663

Abbreviations: QALY, quality adjusted life year; FQHC, federally qualified health system; SF-12, Medical Outcomes Study Short Form 12-item; QWB, Quality of Well Being scale; Depression-free day .2 QALY, depression free day to QALY conversion using .2 to estimate change from fully symptomatic depression to depression free; Depression-free day .4 QALY, depression free day to QALY conversion using .4 to estimate change from fully symptomatic depression to depression free.

¹The final model for depression-free days included: intervention, barriers to treatment, perceived need for treatment, SF-12 physical health component score, SF-12 mental health component score, employment, family history of depression, SCL-20. The QALY and cost models were similar except the SCL-20 was replaced by the baseline QALY measure or baseline cost measure, respectively.

²Cost estimates are based on Arkansas FQHC prospective payment system rates for CHC visits, Arkansas Blue Cross Blue Shield data for non-CHC outpatient visits, University HealthSystem Consortium (UHC) Southern Region per diem rates for ER and inpatient visits, estimated 340B Drug Pricing Program costs for medication, 40% T1 lines monthly charges.

³Cost estimates are based on Lifelink Health Plans Claims Database for outpatient, ER, and inpatient visits, lowest average wholesale price from Red Book for medication, 40% T1 lines monthly charges

^*designates base case analysis