And those on the brink of extinction might need substantially different intervention from those which have a dwindling but still solid base.
The quantitative results of the different interventions from the studies identified were combined using Bayesian mixed treatment comparison techniques [ 19].
Schools were stratified by geographic stratum and the type of intervention that the school had previously received as part of the former SWASH+ study to ensure schools that received different interventions from the previous study would be distributed in similar proportions across all three arms of this trial; then, they were randomly allocated to intervention and control arms.
83 84 Such effects, however, should not bias estimates of the relative efficacy of different interventions from randomised controlled trials and interrupted time series unless the effects vary between study arms/intervention periods.
Against baseline data the will trial different interventions, from "slow down" signs to separate bike lanes.
In some single-focus reviews the outcome of an intervention is compared to that of usual care, in others different interventions stemming from the same theoretical background are compared to one another.
It's a separate study so it's a question of making sure that the people delivering the different interventions are separate from the outcome assessors and so on.' (001, Funder) In certain contexts, nesting could subvert the design of the host trial, by selectively increasing recruitment in one arm of a trial, or modifying the type of participants recruited.
Second, concepts to specify the main categories for developing measurable indicators are compiled, considering different intervention approaches and principles from the literature.
A balanced Latin-square design will not require adjustment for order effects; the comparison between outcomes from the different intervention conditions will not require adjustment for order effects, given the balance Latin-square design.
We therefore also formulated a deterministic counterpart of the stochastic model and compared the conclusions regarding the relative effects of different interventions with the ones drawn from the Markov chain model.
