Our time-limited study was not designed to assess the clinical effectiveness of misoprostol (700 women has only 17%% power to detect a fall in Hb of over 20%% from 7.5%to5.6%.6 %, α = 0.05), and we found no statistically significant difference between the groups.
Single, time-limited studies with tightly-defined research questions are giving way to programs of research that rely upon the systematic prospective collection of data in registries and biobanks for subsequent use in multiple projects to answer as yet unknown research questions.
Whatever the case, it is important to be aware that simply detecting a clinical episode of malaria in a time limited longitudinal study may not identify groups with homogenous levels of 'protection' and 'susceptibility'susceptibility
The open-label design is a limitation of the Swefot trial, as discussed previously. 2 3 Moreover, the relatively short time horizon, the limited study sample totalling 258 randomised individuals, and powering of the trial to detect a between-group difference in clinical response, and not in costs or QALYs, all entail risks of type two error.
It was quickly recognised, however, that part-time students in full-time employment might experience difficulty attending problem-based learning tutorials in addition to other compulsory modules during their limited study time.
Considering the fact that there are thousands of studies into infant competencies, the indicators have to be carefully selected not least because of the limited study time and other constraints associated with large-scale assessments, especially those concerning infants and young children who cannot be tested in group settings and whose attentional capacities are still limited.
The limitations of the study relate to the lack of attention paid to implementation strategies and the time limited nature of a pilot study; the latter meant we were unable to address the question of the most appropriate time to implement case management in the dementia pathway.
However, this target was not reached because federal ARRA American Recoveryy and Reinvestment Act) funding for the study was time limited and accrual was less rapid than expected.
Second, this study is time limited – initiated in January and concluded in July 2006.
Second, this study is time limited, and the OWTS is an ongoing and dynamic initiative, which is continuing to learn and revise its strategy.
