"That left major ambiguities in the interpretation of the data," says seismologist Roger Bilham of the University of Colorado, Boulder.
Removal of ambiguities resulted in a significant increases in FHR signal loss, both in cases with minor and major ambiguities.
Major ambiguities were significantly associated with MHR accelerations, FHR signal loss, decelerations and yellow or red alarms, when compared with minor ambiguities (Table 1).
Thus, there continue to appear fairly major ambiguities about how the behavioral symptoms are described, and that will only sustain the clinical confusion that now accompanies the diagnosis.
The independent sample t test was used to compare the groups with minor or major ambiguities (Table 1) and the paired t test was used to evaluate results before and after removal of ambiguities (Table 2).
The Mann–Whitney test was used to compare the groups with minor or major ambiguities (Table 1) and the Wilcoxon sign rank was used to compare the classification results before and after removal of ambiguities (Table 2).
When major ambiguities occurred, a decrease in the number of FHR decelerations, and a decrease in the false positive rate of yellow-red alarms for the detection of acidemic fetuses, were also observed, but this was not seen with minor ambiguities (Tables 2 and 3).
Data were analyzed descriptively so as to identify major areas of ambiguity and confusion.
