Reoperation.xlsx 
HHospital identifier
LLocation of the hospital
yYear (most recent year in the SQLape_input.txt file, with at least 10% of records)
nNumber of hospital stays
qROData quality (warning if all requirements are not met)
cRONumber of potentially avoidable reoperations
eRONumber of eligible operations
RO1Observed rate
RO0Expected rate (see prediction models for more details)
RO0minMinimal expected rate (see prediction models for more details)
RO0maxMaximal expected rate (see prediction models for more details)
RRORate ratio (RO1 / RO0 )
RO0CHSwiss rate in all Swiss hospitals from 2014-2016 satisfying data quality requirement
RO1aAdjusted rate (rate ratio * benchmark average)
vROResults
A low rate (RO1 < RO0min)
B in the standard (RO0min < RO1 < RO0max )
C high rate (RO1 > RO0max )