Comparison of the time periods from initial drug release of the original signal onset time with the time period of signal detection from initial drug release when the FDA report is assumed to occur 15 days after the onset of ADRs.

Comparison of the time periods from initial drug release of the original signal onset time with the time period of signal detection from initial drug release when the FDA report is assumed to occur 15 days after the onset of ADRs.本研究比较两类时长区间：其一为从药物首次上市至原始信号出现的时长，其二为从药物首次上市至信号检出的时长；该比较的前提假设为：美国食品药品监督管理局（Food and Drug Administration，FDA）的报告将在药品不良反应（Adverse Drug Reactions，ADRs）出现后15天出具。