Peripheral autonomic failure is associated with more severe postprandial hypotension compared to central autonomic failure.

Regression analysis The univariable linear regression tests between AUC of post-meal SBP and age, BMI, sex, supine SBP, sinus arrhythmia ratio, the index ∆HR/∆BP and HR during phase IV of VM did not show any significant association, Table 3 ; however, the diagnosis (MSA or PD) had a borderline significant association with AUC of post-meal SBP ( P = 0.05).

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