Table 4. Methods and results of indirect cost studies for stroke patients, 1990- 2012.
First author/ year of publication/ country |
Patients | Study designc |
Year of cost (Study period) |
Type of indirect cost |
Annual indirect cost in millions |
Annual per-patient indirect cost |
|||
---|---|---|---|---|---|---|---|---|---|
|
|
|
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Stroke typea | Age (Sample size)b |
Local currencyc |
2012 USDc, d |
Local currencyc |
2012 USDc, d | ||||
Fox,1996, US (California)16 | Cerebrovascular disease (as a part of CVD) | All (n=15,222) | Incidence (1 year), HCA | 1991 (1989–1991) | Mortality | 1,082 | 1,824 | 71,081 | 119,829 |
Hickenbottom, 2002, US17 | All types | Over 70 (n=7,443) | Prevalence, RA | 1999 | Informal care | 6,100 | 8,408 | 3,500–8,200 | 4,824–11,302 |
Dewey, 2002, Australia10 | First CI, ICH, and unclassified | N/A (n=340) | Incidence (lifetime), OC/RA | 1997 | Informal care | 332 (OC) 171 (RC) | 329 (OC) 170 (RC) | N/A | N/A |
van den Berg, 2006, Netherlands14 | All types | All (n=218) | Incidence (6 months), OC/RA | 2001 | Informal care | N/A | N/A | 17,482 (OC)e 12,440 (RA)e | 23,451 (OC)e 16,687 (RA)e |
Lindgren, 2008, Sweden18 | IS | 18–76 (n=275) | Incidence (1 year), HCA | 2006 | Morbidity | N/A | N/A | 120,000 | 14,963 |
Riewpaiboon 2009, Thailand19 | All types | All (n=149) | Prevalence, OC | 2006 (2001–2005) | Informal care | N/A | N/A | 42,336–68,052 | 904–1,453 |
Notes:
CVD (cardiovascular disease, includes hypertension, coronary heart disease, heart failure, stroke, and all other cardiovascular disease); ICH (intracerebral hemorrhagic stroke); IS (ischemic stroke); SAH (subarachnoid hemorrhage); TIA (transient ischemic attack); CI (cerebral infarction); N/A (not available).
When the sample size of the indirect cost is different from the total sample size, the sample size for indirect cost is shown.
Estimation approaches for productivity loss: HCA (the human capital approach).Estimation approaches for the time cost of informal caregiving: OC (the opportunity cost approach), and RA (the replacement approach).
Indirect cost in 2012 USD is estimated by using consumer price indices of study countries in the years of cost and in 2012 from the World Bank (http://data.worldbank.org/indicator/FP.CPI.TOTL) and purchasing power parity (PPP) exchange rate in 2012 from OECD website (http://stats.oecd.org/Index.aspx?datasetcode=SNA_TABLE4). For Thailand, we use a PPP conversion factor from the World Bank and an exchange rate in 2012 from the webpage of the Federal Reserve Bank of St. Louis, Economic Research, at the following link:http://research.stlouisfed.org/fred2/release?rid=186&soid=1&t=g5a&at=g5a&ob=pv&od=desc.
Euro is used as a local currency.