OA期刊複雜的APC運作機制，隨著OA期刊的發展逐漸受到學術界的重視。本研究以JCR-SCIE 2017年版收錄的47個醫學次領域為範圍，在扣除重複後，為使資料具合理性，僅以收取固定APC的2,037種期刊為對象，探討出版特徵和引用影響指標與APC機制之關聯性。研究結果顯示，APC金額與刊齡於統計學上並無呈現顯著的相關性，與出版頻率及OA文章數則分別呈現低度正相關與低度負相關，顯示APC金額可能會受其差異所影響。在期刊引用影響指標方面，APC金額與期刊IF和II值皆具有相關性，學科排名則僅在Q1和Q4區間內具有顯著性，表示排名越好的期刊APC收取金額可能越高，而排名較差的期刊APC金額可能相對較低。建議未來可採用問卷或訪談方式瞭解作者投稿OA期刊的動機及支付APC的意願。
The complex APC operation mechanism of open access (OA) journal is generating discussion in the academic community. To understand the prices of APC, this study explored whether APC pricing in medicine is related to journal-related characteristics and journal influence-related indicators. In all,47 medicine-related fields in JCR-SCIE 2017 were collected, among which 3,420 journals had published OA articles and 2,037 OA journals were analyzed, which removal of duplicate titles and picking out fixed APC prices. Results showed that APCs and journal age were not significantly correlated; journals established earlier may have charged lower APCs than those established later. Overall, the majority of OA journals charged approximately US$3,000.APCs and publication frequency were positively correlated, APCs increased with publication frequency. APCs and the number of articles published were negatively correlated, perhaps because hybrid OA journals published fewer articles but charged higher APCs. Regarding journal influence, IF and II values were significantly correlated with APCs. With respect to rankings, for journals ranked in Q1 and Q4, correlations between ranking and APC were significant. This study suggests that future may use questionnaires or conduct in-depth interviews to gain insight into why authors submitted articles to OA journals, their willingness to submit the articles and how prices they were willing to pay in APCs.
