First, many studies asked women to report their symptoms retrospectively, looking to the past and relying on memory, which is known to inflate reporting of PMS compared to what's called prospective reporting, which involves keeping a daily log of symptoms for at least two months in a row.
まず 多くの研究では過去の症状について 尋ねています 過去に遡り 記憶に頼っているため 少なくとも２か月連続して 毎日 症状の記録を取る プロスペクティブ・レポートと比較すると PMSの報告が増大する事が 分かっています