Cochrane

Review aims This review aimed to examine the effects of later school start times for academic outcomes, amount and quality of sleep, mental health indicators, attendance, and alertness in high school students. Background High school students are at a greater risk of sleep deprivation than other groups, both due to their changing brain chemistry ...

Protocol: Main objective The main objective is to assess the effect of interventions to improve sanitation, hygiene, water quality and supply within low- and middle-income countries on child development. Secondary objectives The secondary objectives are to: analyse any measured effect of water, sanitation and hygiene (WASH) interventions ...

Protocol: 1. To assess the impact of altering the availability or proximity of: a) food products (including non-alcoholic beverages); b) alcohol products; and c) tobacco products on their selection or consumption. 2. For each of the above products, to assess the extent to which the impact of such interventions is modified by: i) study characteristics; ...

Background and review question Health authorities and non-governmental organisations often use mass media interventions (e.g. leaflets, radio and TV advertisements, posters and social media) to encourage healthier behaviours related to physical activity, dietary patterns, tobacco use or alcohol consumption, among others. In this review, we consider ...

Protocol: To assess the effects of non-occupational interventions for reducing sedentary behaviour in adults under 60 years of age on sedentary time. Secondary objectives are: to describe other health effects, and adverse events or unintended consequences of the interventions; to determine whether specific components of interventions are associated ...

Protocol: To investigate the effectiveness of workplace interventions to increase standing or walking for preventing the development or recurrence of musculoskeletal symptoms in sedentary workers.

Protocol: To investigate the effectiveness of workplace interventions to increase standing or walking for decreasing musculoskeletal symptoms in sedentary workers.

About the review question We looked at the evidence on the effects of programmes in schools that aimed to prevent accidental injuries in children and young people. Preventing injuries in children is important because injuries are common in this age group and the effects on the child and the family can be severe and long-lasting. Schools are potentially ...

Protocol: The primary aim of this review is to determine the effectiveness of implementation strategies for policies, practices or programmes that aim to improve health behaviours or reduce unhealthy behaviours commonly associated with risk factors for chronic disease in the workplace. Specifically, this review will target interventions that ...

Protocol: To assess the effects of taxation of fat content in food on consumption of total fat and saturated fat, energy intake, overweight, obesity, and other adverse health outcomes in the general population.