It has been suggested that a blunted nocturnal blood pressure (BP) decline is associated with a poor prognosis. Nevertheless, it remains unclear if an abnormal dipping is deleterious per se or it merely reflects an elevated BP during sleep. We aimed to assess the prognostic value of nocturnal BP decline, with or without concomitant elevated nocturnal BP.

中文翻译：

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夜间血压下降迟缓与全因死亡率和心血管死亡率有关。

有人认为夜间血压（BP）下降迟缓与预后不良有关。然而，目前尚不清楚异常下降本身是否有害，或者仅反映睡眠期间血压升高。我们的目的是评估夜间血压下降的预后价值，无论是否伴有夜间血压升高。