CRP and diabetes mellitus: BP: blood pressure; CHAP: Chronic Hypertension and Pregnancy; CRP: C-reactive protein; DASH: Dietary Approaches to Stop Hypertension; DBP: diastolic blood pressure; GH: glycated hemoglobin; GP: glutathione peroxidase; ICU: intensive care unit; MAP: mean arterial pressure; PDM: pre-existing diabetes mellitus; PE: preeclampsia; PRISMA: Preferred Reporting Items for Systematic Reviews and Meta-Analyses; RCT: randomized controlled trial; RoB 2: Cochrane Risk of Bias 2 tool; SBP: systolic blood pressure