Risk factors for hyperglycemia and hypoglycemia in adults with pharmacologically treated type 2 diabetes mellitus: a quantitative systematic review protocol

Abstract

Objective: The objective of this review is to identify and synthesize the risk factors for hyperglycemia or hypoglycemia in adults with pharmacologically treated type 2 diabetes mellitus in any scenarios and environments for health care. Introduction: Studies around the world have investigated which factors are associated with episodes of alteration of blood glucose level. It is through the characterization of these factors that nurses can plan and intervene accurately in the control of serum glucose levels in people with diabetes. Inclusion criteria: This review will include studies conducted among adults with pharmacologically treated type 2 diabetes mellitus in any scenarios and environments for health care. Studies should focus on risk factors for the variation of fasting glycemic levels lower than 3.9 mmol/L and higher than 7.21 mmol/L, as well as postprandial glycemic levels lower than 3.9 mmol/L and higher than 10 mmol/L. Methods: Databases to be searched include MEDLINE, Embase, CINAHL, PsycINFO, Web of Science, Scopus, LILACS, and ScienceDirect. Following the search, titles and abstracts will be screened by two independent reviewers for assessment against the inclusion criteria for the review. The full text of selected citations will be assessed in detail against the inclusion criteria, and studies selected for retrieval will be assessed by two independent reviewers for methodological validity using JBI critical appraisal tools. Studies will not be excluded based on their quality assessment. Data will be extracted using the standardized data extraction tools. Quantitative data will, where possible, be pooled in statistical meta-analysis. Systematic review registration number: PROSPERO (CRD42019134755)