Relationships between blood pressure and blood glucose among offspring of parents with type 2 diabetes: Prediction of incident dysglycemia in a biracial cohort

J Diabetes Complications. 2017 Nov;31(11):1580-1586. doi: 10.1016/j.jdiacomp.2017.07.019. Epub 2017 Aug 2.

Abstract

Aims: We assessed blood pressure (BP) and blood glucose (BG) values in healthy subjects, and examined baseline BP as a predictor of incident prediabetes during follow-up.

Methods: Participants in the Pathobiology of Prediabetes in a Biracial Cohort (POP-ABC) study underwent screening assessments (anthropometry, BP, OGTT) and were stratified into normal BP (NBP), prehypertension, or hypertension, and normal glucose regulation (NGR), prediabetes (IFG/IGT), or type 2 diabetes (T2D) status. NGR subjects who met all inclusion criteria were enrolled in a 5-yr prospective study, with the primary outcome of incident prediabetes.

Results: We screened 602 adults (341 black, 261 white) and enrolled 343 (193 black, 150 white) for prospective follow-up. Systolic and diastolic BP correlated significantly with fasting and nonfasting BG (P=0.003-<0.0001). Compared to NGR group, more prediabetic subjects had prehypertension (42.5% vs. 36.2%) and fewer had NBP (35.9% vs. 48.6%) (P=0.009). During ~5years of follow-up, 26.3% of NBP and 35.7% of prehypertensive subjects developed prediabetes (P=0.02). Kaplan-Meier analysis showed higher probability of incident prediabetes among participants with prehypertension compared to NBP during ~5years of follow-up (P=0.0012).

Conclusions: In our biracial cohort, BP and BG values were significantly correlated, and BP status predicted incident prediabetes among initially normoglycemic individuals. These findings suggest co-evolution of factors involved in the dysregulation of BP and BG.

Keywords: Impaired fasting glucose; Impaired glucose tolerance; Prediabetes; Prehypertension; Prospective study; Race/ethnicity.

MeSH terms

  • Adult
  • African Americans
  • Blood Glucose / analysis*
  • Blood Pressure
  • Cohort Studies
  • Diabetes Mellitus, Type 2 / complications*
  • Diabetes Mellitus, Type 2 / ethnology
  • Diabetic Angiopathies / blood
  • Diabetic Angiopathies / complications*
  • Diabetic Angiopathies / epidemiology
  • Diabetic Angiopathies / ethnology
  • Disease-Free Survival
  • Family Health* / ethnology
  • Female
  • Humans
  • Incidence
  • Kaplan-Meier Estimate
  • Male
  • Middle Aged
  • Prediabetic State / blood
  • Prediabetic State / complications*
  • Prediabetic State / epidemiology
  • Prediabetic State / ethnology
  • Prehypertension / blood
  • Prehypertension / complications*
  • Prehypertension / epidemiology
  • Prehypertension / ethnology
  • Prospective Studies
  • Risk Factors
  • Tennessee / epidemiology
  • Whites
  • Young Adult

Substances

  • Blood Glucose