The phrase "ascertained the predictive value" is correct and usable in written English.
It can be used in contexts involving research, statistics, or analysis where one is determining the effectiveness or accuracy of a predictive measure.
Example: "After conducting the study, the researchers ascertained the predictive value of the new diagnostic test."
Alternatives: "determined the predictive value" or "evaluated the predictive value."
Objective: The purpose of this study was to ascertain the predictive value of antecedent preterm premature rupture of membranes for recurrent preterm premature rupture of membranes and preterm delivery rates in the next pregnancy compared with background rates among a population-based sample of women at a single institution.
On the other hand, the study of such patients represents a unique opportunity to ascertain the predictive value of a given biomarker without the influence of chemotherapy, either concurrent or previous, as well as of selection exerted by other treatments.
To ascertain the predictive value of this observation with better certainty, the pooled comparisons as well as pairwise comparisons of DFS among four chemotherapy subgroups were investigated in patients with low and high TopIIα expression.
A three-step scheme was used to ascertain the predictive value of population kinetic modelling of hCG data, using the patient cohort's Model and Test data sets according to the following outline procedure: Estimation of individual kinetic parameters using population kinetic modelling of hCG measurements in Model data set patients.
Separate validation experiments at the derived optimal conditions ascertained the predictive ability of the developed model equations.
Since the modified version of the CES-D contains a reduced response format, further investigation is necessary to confirm its appropriateness, to test-retest the modified scale, and ascertain the positive predictive value of the CES-D (and indeed the HADS-D as well), to determine the scale's utility within a routine clinical setting.
Data of patients referred to School of Tropical Medicine, Kolkata for suspected treatment failure (TF) was analyzed for the period of December2008 to November2013 to ascertain the positive predictive value (PPV) of immunologic and/or clinical parameter for confirming virologic failure (VF) and to observe the short term outcome of secondline treatment.
The analysis of HDACs expression in liver tissue of HCC patients with other etiological backgrounds might be very useful to ascertain the real predictive value of HDAC3 for HCC recurrence.
In these patients, the prognosis is uncertain and the predictive value of troponin determination has not yet been ascertained.
It would be interesting to assess the predictive value of SDF-1alpha level for EPC number, and to ascertain whether there is a relationship between SDF1 gene variation, plasma SDF-1alpha level, and the number and function of circulating EPCs.
