The Cochrane Library

Smoking prevention in schools reduces the number of young people who will later become smokers, according to a new systematic review published in The Cochrane Library. For young people who have never smoked, these programmes appear to be effective at least one year after implementation.

Giving prescribers access to education and advice or imposing restrictions on use can curb overuse or inappropriate use of antibiotics in hospitals, according to a new Cochrane systematic review. This is important because unnecessary use of these life-saving drugs is a key source of antibiotic resistance in bacteria.

Research into the complementary therapies evening primrose oil and borage oil shows little, if any, benefit for people with eczema compared with placebo, according to a new systematic review. The authors, who published their review in The Cochrane Library, conclude that further studies on the therapies would be difficult to justify.

In women who have a potentially or mildly abnormal cervical smear, using a DNA-based test can identify those at higher risk of having precursors of cervical cancer, according to a new Cochrane systematic review. The authors found that the DNA-based test identified patients in possible need of treatment more accurately than a repeat smear test.

Prebiotic supplements in infant formula may help to prevent eczema, according to a systematic review published in The Cochrane Library. However, the review highlights a lack of high quality evidence for the effects of prebiotics in preventing allergies.

Self-management interventions delivered by computer and mobile phone currently provide limited benefits for people with diabetes, according to a systematic review published in The Cochrane Library. Although computer and mobile phone-based self-management programmes had small positive effects on blood sugar levels, these effects seemed to be short-lived.

A new systematic review published in The Cochrane Library has raised doubts as to the effectiveness of “red flag” indicators at both identifying and excluding cancer in patients with lower back pain. The authors of the review concluded that most individual red flags were poor at diagnosing spinal malignancies and call for further studies focused on combinations of red flags.

Patients’ ability to make genuinely informed choices about undergoing disease screening increases when the risk information that they receive is related to their own personal risk, rather than average risks, according to the results of a Cochrane systematic review. The authors reviewed data from studies, largely on cancer screens, in which patients were provided with personalised risk estimates.

Improving housing can improve health, particularly when interventions are targeted at those in the poorest health, according to a systematic review published in The Cochrane Library. The authors say their review underscores the importance of targeting those most in need when devising programmes for housing improvement.

Dementia patients may benefit from a promising new treatment called Cerebrolysin, according to the results of a systematic review published in The Cochrane Library. The authors brought together the most up-to-date evidence on Cerebrolysin as a treatment for vascular dementia.

A systematic review published today in The Cochrane Library finds that in well-nourished adults current evidence does not support selenium for preventing heart disease. The review suggests that taking selenium supplements does not reduce a person’s risk of developing heart disease, although most evidence is currently limited to healthy American adults.

People with hepatitis C and chronic liver disease who relapsed or failed to respond to initial treatment are unlikely to improve on interferon retreatment. In fact, they may face an increased risk of dying sooner, and are likely to experience a variety of adverse effects, according to an updated systematic review published in The Cochrane Library.

A diagnostic test for tuberculosis (TB) can accurately and quickly detect both TB and drug-resistant strains, according to a new study. The authors of a new systematic review assessing the diagnostic accuracy of the Xpert® MTB/RIF test published in The Cochrane Library say their study can provide timely advice for clinicians and policymakers in countries where TB is a major public health problem.

Children suffering post-traumatic stress disorder (PTSD) as a result of traumatic events, including child abuse, may benefit from psychological therapies, according to a review published in The Cochrane Library. In the first systematic review of PTSD in young people, researchers found that children and teenagers diagnosed with PTSD showed signs of improvement up to three months following treatment and called for more studies to assess long-term benefits.

Studies reporting the results of industry sponsored clinical trials present a more favourable picture of the effects of drugs and medical devices than those reporting on non-industry sponsored trials, according to a new Cochrane systematic review. The researchers call for a rethink of the way that industry bias is handled in medical guidelines and reviews.

The sweet taste of sugar may provide some comfort for babies during immunisations, according to a new Cochrane systematic review. Researchers found babies did not cry for as long if they were given drops of sugar solution before injections.

There is no credible evidence of any benefit in using vitamin E to treat or prevent Alzheimer’s dementia, according to an updated systematic review published in The Cochrane Library. The authors highlight the need for greater awareness of its lack of efficacy and potential to cause harm in high doses. They also suggest that alternative formulations of Vitamin E should now be studied.

Support for quitting smoking via text and video messages can help smokers kick the habit according to a new Cochrane systematic review. The authors of the review found that people were more likely to stay away from cigarettes over a six month period if they received motivational messages and advice to their mobile phones.

Aerobic exercise can help relieve the fatigue often associated with cancer and cancer treatment, according to Cochrane researchers. Their updated systematic review strengthens findings from an earlier version on cancer-related fatigue published in The Cochrane Library.

Cranberry juice is unlikely to prevent bladder and kidney infections, according to an updated systematic review published in The Cochrane Library. The authors analysed the most up-to-date evidence and concluded that any benefit, if present at all, is likely to be small and only for women with recurrent UTI.