Loss by suicide ....該怎麼翻譯較好?

Loss by suicide (A Risk Factor for Suicidal Behavior)

請幫我翻一下....loss by suicide
到底是自殺的迷惑,還是自殺的減少
因為是用by讓我很疑惑....不知該如何翻較好
因為是個標題....希望能翻的漂亮一點....
多謝你們的幫忙唷........
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