Vaccines are not associated with autism: an evidence-based meta-analysis of case-control and cohort studies
The authors commented that whilst some trials and cohort studies
had reported increased risk with higher calcium intake, risk estimates were small and not considered clinically important, despite being statistically significant.
The six prospective cohort studies
included in the new analysis are well known in the field of osteoarthritis research: the Framingham (Mass.
The association between insomnia symptoms and risk of cardio-cerebral vascular events: A meta-analysis of prospective cohort studies
A systematic review and meta-analysis of prospective cohort studies
evaluating infant risk factors for childhood obesity found that breastfeeding was associated with a lower risk of obesity.
Our 2006 Strategic Review of Panel and Cohort Studies
(PDF) (external website) led to the development of CLOSER and the 2007 Scientific Case for a New Birth Cohort Study (PDF) (external website) a nationally representative birth cohort study which was planned to begin in 2012.
One of the cohort studies
cited in the report suggests that certain oral bacteria may be involved in the development of cancer cells in the lungs, while another indicates successful treatment of periodontal disease may lead to a substantially reduced lung cancer risk.
A total of 20 cohort studies
were identified in this metaanalysis, and we analyzed these studies using random effects model.
The present study focused on potential errors related to participant selection and participation issues that may affect other cohort studies
used in environmental health research.
Results: Twenty prospective cohort studies
were included, involving 16,981 stroke events among 760,629 participants.
However analysis of cohort studies
showed a significantly higher risk of low birth weight and preterm birth with anaemia in the first or second trimester of pregnancy.
This issue of the National Institute Economic Review presents a selection of research findings on the economics of the family, education and the labour market, linked by their use of evidence from the British Birth Cohort Studies
Included studies were prospective cohort studies
that reported risk estimates for type 2 diabetes by rice intake levels.
Hoover and his colleagues combined three cohort studies
of DES-exposed women that had begun in the mid-1970s, so that the pooled subjects could be followed periodically with self-report questionnaires.
Methods: Four multicenter, controlled, retrolective, phar-macoepidemiological cohort studies
according to GEP (good epidemiological practice) with a total of 3376 patients were performed.