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Table 4 Association between types of BP combination and the risk of rapid decline of eGFR, fully adjusted and age-stratified

From: Association between pulse pressure, systolic blood pressure and the risk of rapid decline of kidney function among general population without hypertension: results from the China health and retirement longitudinal study (CHARLS)

Types of BP combination In total (n, %) Overall Age 45–54 years Age 55–64 years Age ≥ 65 years
OR P value OR P value OR P value OR P value
BP combination
 Medium SBP and Normal PP 1068(23.6) Ref Ref Ref Ref Ref Ref Ref Ref
 High SBP or High PP 739(16.3) 0.96(0.72–1.29) 0.806 1.09(0.63–1.89) 0.746 1.01(0.66–1.55) 0.965 0.83(0.45–1.51) 0.538
 High SBP and High PP 329(7.3) 1.79(1.27–2.54) 0.001 2.65(1.11–6.33) 0.028 1.65(0.96–2.84) 0.069 1.66(0.93–2.95) 0.087
 Low SBP and Normal PP 2369(52.3) 1.21(0.97–1.51) 0.094 1.63(1.10–2.40) 0.014 0.97(0.70–1.36) 0.874 1.06(0.65–1.75) 0.796
 Low SBP and High PP 29(0.6) 3.07(1.24–7.58) 0.015 14.25(0.92–220.60) 0.057 1.95(0.39–9.86) 0.418 2.90(0.78–10.76) 0.110
  1. Adjusted for age, gender, smoke, drink, BMI, HbA1c, LDL, UA, eGFR at baseline
  2. BP blood pressure, PP pulse pressure, SBP systolic blood pressure, DBP diastolic blood pressure, OR odds ratio, Ref. reference, BMI body mass index, HbA1c hemoglobin A1c, LDL low-density lipoprotein, UA uric acid, eGFR estimated glomerular filtration rate