Public health information covers a range of disciplines, below are some of the key databases available to help you in your research.
Traditional / Narrative review - a critical summary and synthesis of previously published literature about a particular topic involves systematically exploring related literature. Narrative reviews can be organised by chronology, theme, or methodology, and may highlight issues of debate and gaps in current research.
Systematic Review - "[a] high-level overview of primary research on a particular research question. It seeks to collate all evidence that fits pre-specified eligibility criteria with the aim of minimising bias by using explicit systematic methods" - Cochrane Database. Commonly used within Health Sciences to compare and assess effectiveness of clinical interventions.
Scoping Review - "preliminary assessment of potential size and scope of available research literature. Aims to identify nature and extent of research evidence (usually including ongoing research) (Grant & Booth, 2009)."