The phrase "at the initial study" is correct and usable in written English.
It can be used when referring to the beginning phase of a research or analysis process.
Example: "At the initial study, we found several key factors that influenced the outcome of the experiment."
Alternatives: "during the preliminary study" or "in the first phase of the study".
Children were not consistently classified according to WHO clinical stage; however, among those with WHO staging available (28 at ART initiation and 34 at the initial study visit) there was a decrease in the proportion of children in stage 3 or 4 from 89% at ART initiation to 65% at the initial study visit.
However, the proportion of children who were underweight decreased only slightly, from 70% at ART initiation to 60.5% at the initial study visit for 37 children with available data.
However, the proportion of children who were underweight decreased only slightly, from 70% at initiation of ART to 61% at the initial study visit.
In this paper I outline three possible reasons why this knowledge gap still exists and consider how they could be adopted more broadly, including better considerations about what endpoints should be measured at the initial study design phase.
At the initial study of power regulation performance, DG1 supplies the required real and reactive power to the load under the enhanced droop control strategy as shown in Fig. 6.
For studies performed with activin A stimulation, SP1, SRE, NFκB, RXR, and p53 had differential activity relative to vehicle at the initial study time point (Fig. 6).
Arterial blood gas analysis was performed at baseline, after the initial study fluid bolus and together with other laboratory and vital sign parameters at 6, 12, 24 and 48 hours after enrolment.
To avoid confounding of the association between fasting serum glucose and the risk of death by preexisting disease, 88,420 who reported having CVD, liver disease, cancer, respiratory disease, and diabetes diagnosed at or before the initial study visit were excluded.
He acquired TP53 mutation at second relapse, 106 months after the initial study at diagnosis and 39.5 months after CR2.
She acquired TP53 mutation at second relapse, 106 months after the initial study at diagnosis; the leukemic cells showed complex chromosomal changes with loss of the original t(15 17) and trisomy 8 at that time (Table 5).
Data on overall survival remained immature at the time of the initial study report.
