高齢者医療における臨床医の行動変容:前立腺特異抗原スクリーニングのための適時アラート
Ngoc Duong1, Ji Young Lee2, Yaw Peprah2
1Division of Biostatistics and Informatics, Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL.
American journal of preventive medicine
|February 11, 2026
まとめ
前立腺特異抗原(PSA)の過剰検査を減少させる臨床意思決定支援ツールが、高齢男性におけるPSA過剰検査を減少させた。この介入は、女性および最近トレーニングを受けた臨床医においてより効果的であり、標的を絞った実施の可能性を示唆している。
科学分野:
- 臨床情報学
- 医療サービス研究
- 行動科学
背景:
- 高齢男性における前立腺特異抗原(PSA)スクリーニングは、過剰診断および過剰治療と関連している。
- 臨床意思決定支援(CDS)ツールは、PSA検査の過剰使用を軽減することができる。
研究 の 目的:
- 臨床医レベルでのPSA過剰検査を減らすことを目的とした、行動科学に基づいた臨床意思決定支援(CDS)の治療効果の異質性を定量化すること。
- CDSシステム内でのアラートトリガーにおける臨床医レベルの傾向を探求すること。
主な方法:
- 59のプライマリケア診療所の338人の臨床医が参加した実用的なクラスターランダム化試験の二次分析。
- 介入群は、適時CDSと教育を受け、対照群は教育のみを受けた。
- 主要評価項目:前立腺がんのない75歳以上の男性における臨床医レベルの年間PSA過剰検査率。副次評価項目:月次アラートの傾向。
主要な成果:
- 介入群の臨床医は、対照群と比較して18ヶ月で100人あたり12.1件のPSA過剰検査を減少させた。
- 特に女性臨床医および1999年以降に卒業した臨床医において、減少は有意に大きかった。
- アラートトリガーの割合は月ごとに減少したが、トリガーされたアラートのある診察ではPSAオーダーがわずかに増加した。
結論:
- 行動科学に基づいたCDSは、特に女性および最近トレーニングを受けた臨床医において、臨床医レベルのPSA過剰検査を効果的に低下させた。
- アラート率の低下は臨床医の適応を示唆しているが、持続的なアラートにおけるオーダー率の上昇は、さらなる関与戦略を必要とする。
- これらの結果は、介入の調整と、反応性の低い臨床医のための戦略の開発の重要性を強調している。
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