Reporting of costs and economic impacts in randomized trials of de-implementation interventions for low-value care: a systematic scoping review

Table 6 De-implementation costs and impact on health care costs in USD (converted by authors in October 2022)

Author + year	Target clinical intervention	Total costs in USD (2021 value)	Unit costs in USD (2021 value)	Impact size in USD (2021 value) and unit for which the impact is reported
Alexander et al. (1996) [35]	Rehabilitation	9710^b	NA	516,000^b/101 patient
Avorn et al. (1983) [46]	Drug treatment	NA	232^b/doctor	45,800^b/year
Butler et al. (2012) [26]	Drug treatment, AB	163,000^a	4950^a/health care unit	1410^a/health care unit
Coenen et al. (2004) [42]	Drug treatment, AB	6845^c	280^c/doctor	12.6^c/patient
Dormuth et al. (2012) [37]	Drug treatment	118,000^b	NA	550,000^b/2 years
Gulliford et al. (2019) [38]	Drug treatment, AB	747,000^a	NA	71.4^a/patient
Nejad et al. (2016) [44]	Drug treatment	616^b	NA	2240^b/3 months
Soumerai et al. (1993) [28]	Blood transfusion	NA	1290^b/day	5670^b/day
Zwar et al. (1999) [27]	Drug treatment, AB	22,175^d	284^d/doctor	378^d/doctor

References of currency conversions
^aLawrence H. Officer and Samuel H. Williamson, “Computing ‘Real Value’ Over Time With a Conversion Between U.K. Pounds and U.S. Dollars, 1791 to Present,” Measuring Worth, 2022, http://measuringworht.com/exchange/
^bSamuel H. Williamson, “Seven Ways to Compute the Relative Value of a U.S. Dollar Amount, 1790 to present,” Measuring Worth, 2022, https://www.measuringworth.com/calculators/uscompare/
^cfirst converted with Lawrence H. Officer, "Exchange Rates Between the United States Dollar and Forty-one Currencies,", MeasuringWorth, 2022, www.measuringworth.com/exchangeglobal/ to USD, then with reference b to present value
^dFirst converted with Diane Hutchinson and Florian Ploeckl, “Five Ways to Compute the Relative Value of Australian Amounts, 1828 to the Present,” Measuring Worth, 2022, www.measuringworth.com/calculators/australiacompare AUD in present value, and then with Lawrence H. Officer, “Exchange Rates Between the United States Dollar and Forty-one Currencies,” Measuring Worth, 2022, http://www.mearusingworth.com/exchangeglobal/. All conversions have been made on 25th October 2022

ISSN: 1748-5908