It decides that when pulsating wave measuring device 10 from the pulsating wave sensing station 100 which detects the pulsating wave of the subject and the pulsating wave, from the amplitude calculation section 112 which calculates the amplitude of the pulsating wave and the pulsating wave, from the interval calculation section 114 which calculates the interval of the pulsating wave and interval, interlocking to the breath of the subject, is decrease of amplitude or compaction of interval the selection section in 116 which selects the breath Characteristic fluctuation component which changes and specified 1st point in time, is decrease of the breath Characteristic fluctuation component at the same time in the 2nd point in time immediately before the 1st point in time, the apnea event was generatedThe decision section 118 which it does and, it has.脈波計測装置10は、被験者の脈波を検出する脈波検出部100と、脈波から、脈波の振幅を算出する振幅算出部112と、脈波から、脈波の間隔を算出する間隔算出部114と、間隔から、被験者の呼吸に連動して変化する呼吸性変動成分を抽出する抽出部116と、所定の第1の時点において振幅の減少又は間隔の短縮があり、かつ第1の時点の直前の第2の時点において呼吸性変動成分の減少があった場合に、無呼吸イベントが発生したと判定する判定部118と、を備える。
