Objective Qualitative research on therapeutic components is necessary to evaluate the
efficacy of complex interventions in healthcare. As few qualitative syntheses have been …

Background Including qualitative evidence on patients' perspectives in systematic reviews of
complex interventions may reveal reasons for variation in trial findings. This is particularly …

Objectives Although there is increasing interest in the evaluation of complex interventions,
there is little guidance on how evidence from complex interventions may be reviewed and …

Background There is a growing need for methods that acknowledge and successfully
capture the dynamic interaction between context and implementation of complex …

Rationale, aims and objectives The clarity of pivotal concepts is an important prerequisite for
the development, evaluation and exchange of scientific ideas. The term 'complex …

Background Complex interventions in health care are characterized by multiple interacting
components as well as by numerous nonlinear interactions with the social systems within …

Background Many medical interventions are of a complex nature. They comprise
interdependent components differently interacting within various complex settings, eg, stroke …

Few interventions are truly simple; complexity can arise from various sources, eg: Aspects of
the intervention itself, such as the number of intervention components, the number of groups …

The UK Medical Research Council's widely used guidance for developing and evaluating
complex interventions has been replaced by a new framework, commissioned jointly by the …

The issue of complexity, and how one evaluates complex inter-ventions, remains a key one
for health service and public health researchers. The underlying question—what makes …