Objective To systematically assess credibility and certainty of associations between
cannabis, cannabinoids, and cannabis based medicines and human health, from …

Background Although neutrophils have been linked to the progression of cancer, uncertainty
exists around their association with cancer outcomes, depending on the site, outcome and …

There is evidence that diet and nutrition are modifiable risk factors for several cancers, but
associations may be flawed due to inherent biases. Nutritional epidemiology studies have …

Background Although many meta-analyses have examined the association between
childhood sexual abuse and subsequent outcomes, the scope, validity, and quality of this …

Background Type 2 diabetes mellitus (T2DM) is a global epidemic associated with
increased health expenditure, and low quality of life. Many non-genetic risk factors have …

Background: Whether health care provider burnout contributes to lower quality of patient
care is unclear. Purpose: To estimate the overall relationship between burnout and quality of …

Psychosis is a heterogeneous psychiatric condition for which a multitude of risk and
protective factors have been suggested. This umbrella review aimed to classify the strength …

Objective To evaluate the existing meta-analytic evidence of associations between exposure
to ultra-processed foods, as defined by the Nova food classification system, and adverse …

Background: Type 2 diabetes mellitus (T2DM) has been associated with an increased risk of
developing several common cancers, but it is unclear whether this association is causal. We …

Objectives To evaluate the existing evidence for associations between coffee consumption
and multiple health outcomes. Design Umbrella review of the evidence across meta …