Association Between Follow-Up Mean Blood Pressure and Blood Pressure Control: A Meta-Regression Analysis of 101

Abdul Salam1,2,3, Rupasvi Dhurjati1, Rashmi Pant1

  • 1The George Institute for Global Health, Hyderabad, Telangana, India (A.S., R.D., R.P., S.K.T., K.N., S.R., A.M., K.V., E.H.).

Insights

Achieving blood pressure control is crucial for hypertension management. Lowering systolic blood pressure below 125 mm Hg is associated with approximately 80% of patients reaching their blood pressure control goals.

Area of Science:

  • Cardiovascular Medicine
  • Clinical Trials
  • Hypertension Research

Background:

  • The precise mean blood pressure (BP) threshold for achieving BP control (<140/90 mm Hg) in most patients remains unclear.
  • Understanding this relationship is vital for effective hypertension management strategies.

Purpose of the Study:

  • To assess the association between mean BP and BP control.
  • To analyze data from randomized clinical trials (RCTs) to quantify this relationship.

Main Methods:

  • A systematic literature search identified individual and cluster RCTs involving adults randomized to BP-lowering interventions.
  • Linear regression analysis was employed to evaluate the association between mean BP and BP control rates.

Main Results:

  • Analysis of 101 RCTs (65 iRCTs, 36 cRCTs) revealed a strong correlation between mean systolic BP (SBP) and BP control.
  • A 1 mm Hg reduction in mean SBP was linked to an approximate 2% increase in BP control, consistent across various subgroups.
  • Mean SBP levels of 120-135 mm Hg corresponded to BP control rates between 55% and 85%.

Conclusions:

  • A systolic BP below 125 mm Hg was associated with achieving BP control in approximately 80% of patients.
  • These findings offer valuable insights for hypertension guidelines, clinical practice, and public health programs.
Abstract

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