From: Does the national dental scaling policy reduce inequalities in dental scaling usage? A population-based quasi-experimental study
Pre-policy
Post-policy
2010
2011
2012
2013
2014
2015
2016
Relative concentration index
−0.063
−0.066
−0.065
−0.068
−0.076
−0.081
−0.080
Absolute concentration index
−0.044
−0.046
−0.045
−0.047
−0.048