It is questionable as to whether the mere number of hours is a valid parameter for measuring participation restriction, as this perspective disregards subjectively-experienced difficulties associated with social activities and context factors (such as family and professional obligations).
To conclude, determination of tumor cells by immunocytochemistry in bone marrow aspirates is a valid parameter for assessing early hematogenous spread in patients with initial-stage breast carcinoma; this finding was documented in 22% of patients.
To sum up, in our study, a high OPN expression results as an unfavourable prognostic factor for relapse and outcome in stage I patients, and is a valid parameter by which to split this subpopulation into two groups, both for overall and for disease-free survival.
The ecarin clotting time (ECT) was suggested to be a valid monitoring parameter with a linear correlation to r-hirudin concentrations in plasma [ 1].
Taken together, our results do not support the concern that OPN serum levels might not be a valid prognostic parameter in patients with acute kidney injury undergoing RRT.
The 6-months landmark strategy was chosen by our study group, because 6 months were already explored to be a valid prognostic parameter for patients' outcome in previous studies (Heng et al, 2011; Seidel et al, 2012), while 3 months roughly implies the time period from treatment initiation to first treatment evaluation (median: 2.75 months in our analyses).
Computer software will be used to calculate duration, amplitude and impulse of the reaction forces; Knee adduction moment (KAM) is considered a valid parameter to infer the level of mechanical loading [ 122].
Our data demonstrate that the CRP level in trauma patients is not a valid parameter to gather more information about the severity of systemic inflammation, complications, and prognosis of the patient.
This reveals how Kin-VADASE features the main advantage of the standalone approach and the single frequency capability and, although with slightly lower accuracy with respect to the established techniques, can be a valid alternative to estimate kinematic parameters of vehicle in motions.
However, group comparison of means are still valid for these data, as the central limit theorem dictates that in a suitably large sample the standard error will be a valid estimate of sampling variation processes, and by extension confidence intervals and hypothesis tests of regression parameters, will also be valid [ 34].
