メディケア利用の分析における推定定住人口とメディケア登録人口の影響を比較する
Imaina Widagdo1, Anna Kemp-Casey1, Gereltuya Dorj1
1Quality Use of Medicines and Pharmacy Research Centre, Clinical and Health Sciences, University of South Australia, Adelaide, Australia.
まとめ
適切な人口データを選択することは,正確なヘルスケア利用率にとって極めて重要です. この研究では,オーストラリア統計局 (ABS) の推定居住者人口 (ERP) とメディケアのデータとの間の国内差は最小でしたが,年齢と地域によって有意な差異がありました.
科学分野:
- 医療サービス研究
- バイオ統計学
- 公衆衛生政策
背景:
- 医療利用率は,オーストラリア統計局 (ABS) の推定居住者人口 (ERP) またはメディケア登録データを使用しています.
- ERPはすべての居住者を含む.メディケアデータはメディケア対象でない者を除く.
- 不一致な分母の使用は,誤った解釈と非最適のリソース配分につながる可能性があります.
研究 の 目的:
- 一般医 (GP) の利用率をABS ERPとメディケア登録データを分母として比較する.
- 異なる年齢層とオーストラリアの司法管轄地域における利用率の不一致を特定する.
主な方法:
- 2021-2022年のGP出勤データ (メディケア項目23) を分析した.
- 一人当たりの利用率はABS ERP (2022年6月) とMedicare登録数値を使用して再計算されました.
- 比較は年齢層,性別,地域によって行われました.
主要な成果:
- ERPを利用した全国のGPの出勤率はMedicareと比較して約2.3%高かった.
- 15歳から24歳のERPでは,ACT率が約16%低かった.
- 北部地域では,85歳以上の女性のERP率はメディケアよりも約21%高かった.
結論:
- 医療利用率の国内差は小さいが,年齢と管轄区域に固有の差異がある.
- ERPベースのレートは若い成人の方が低く,Medicareベースのレートは高齢者の方が低い傾向があります.
- 医療利用の正確な解釈には,分母を慎重に選択し,報告することが不可欠です.
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