Correction to: BMC Health Services Research (2023) 23:31. https://doi.org/10.1186/s12913-022-09011-0.

Following publication of the original article [1], the authors identified some errors in the reported study years:

Corrections (marked in bold):

  1. 1.

    Participants were individually randomized (1–1 ratio) to either be exempted from the standard $5 charge per prescription item for one year (2020–2021) (n = 591) or usual care (n = 469). (Abstract under “Interventions”)

  2. 2.

    The primary outcome was length of stay (measured by hospital bed-days) within the year of the study (1 Feb 2020 to 31 Jan 2021) (Methods).

The original article [1] has been corrected.