The conservative half of Chancellor Angela Merkel's governing coalition has been reluctant to get involved with more interventions in the economy than it already has with failing banks, as it is losing ground to a free-market-oriented centrist party, the Free Democrats.
The cluster-crossover design can be used for clinical trials comparing two or more interventions in a naturally formed study population, i.e. a cluster.
More interventions in primary health care than the community were effective in supporting smoking cessation whereas the reverse was true for diet and physical activity interventions.
Study selection All network meta-analyses comparing the clinical efficacy of three or more interventions in randomised controlled trials were included, excluding meta-analyses with an open loop network of three interventions.
15 Hospitals with a high rate of coronary angiography performed substantially more interventions in higher risk patients than those performed in low rate hospitals, despite a similar range of risks to patients, demonstrating that these patients were amenable to the intervention procedures.
There has been inconsistency in what constitutes a MTC in the medical literature 12; therefore, for the purposes of this systematic review a MTC was defined as the comparison of three or more interventions in which direct as well as indirect evidence was used.
