Although performed under anesthesia, this proof-of-concept study demonstrated for the first time the ability of a catalytic bioscavenger to prevent systemic VX toxicity when given alone as a single post-exposure treatment, and enables an initial assessment of a time window for this approach.
By way of example, suppose a given program site had 100 clients with baseline and follow-up assessment within a specified time window (e.g., six months).
For follow-up assessments, a relatively large time window will be allowed to ensure maximum data collection and questionnaires will be administered by post to limit the burden to participants that may result from attending appointments at the study-site during follow-up.
At last, even if, as per protocol, very precise timing for the HRQOL assessment was described, time windows need to be defined to perform the analysis and assign HRQOL data to the different time points and allow for some delays.
This post-stimulus time window allows assessment of the RIII-component of the flexion reflex, without contamination of the earlier RII-component [39].
Children for whom we have only a short ASQ will be excluded from this analysis, as will those whose assessment was outside the appropriate time window.
On the other hand, investigation of an optimal time window for outcome assessment (National Research Council 2009), the timing of the exposure (National Research Council 2009), and measurement of outcomes that are sensitive to the exposure at the appropriate time (Wood 2000) are particularly important for assessing animal studies of environmental exposures.
Data collected at all 21 prespecified ECG assessment time points within the ECG assessment window (09.00 h to 15.00 h for 3 days) from exenatide and placebo treatment periods were included in the model fitting.
Finally, case-control studies were not ideal to address the temporal relationships between diabetes and PD because of the use of prevalent cases and sometimes unspecified time window of exposure assessment.
An impact assessment should be planned choosing an appropriate time window, which highly depends on the considered type of research and dimension of the impact.
