Children aged younger than 6 years had the highest level of use (59.21 DID) in 2014, and showed an increasing trend each year, consistent with previous findings.
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The sentences
However, there was a decreasing trend in the prevalence of polypharmacy, from 65.3% in 2002 to 46.6% in 2013, which likely reflects the policy-driven change since the early 2000s that stemmed from quality assessment and a drug utilization review by the HIRA service [ 7 ].