The phrase "at entry to study" is not standard in written English and may cause confusion.
It could be used in contexts discussing the beginning phase of an academic program or research study, but it would be clearer with slight modifications.
Example: "At entry to study, students are required to complete a series of assessments to gauge their readiness."
Alternatives: "upon starting the study" or "at the beginning of the study".
Selected characteristics of subjects from each site (subject count, age at entry to study site, age at last contact, and years treated with lithium) are summarized in Table 2.
Mean ± SD SLEDAI-2K score at first clinic visit and at entry to study were 9.6 ± 7.7 and 8.7 ± 7.0, respectively, indicating moderate disease activity.
Mean ± standard deviation (SD) age at first clinic visit and at entry to study were 35.0 ± 13.6 and 35.4 ± 13.7 years, respectively.
At entry to study, both the amount of proteinuria and eGFR were important prognostic variable towards ESRF in crude as well as adjusted analyses.
Mean ± SD disease duration at first clinic visit and at entry to study were 4.0 ± 5.0 and 4.4 ± 6.0 years, respectively.
Because some relapses during the transition from drug at entry to study drug could be related to the transition itself, we planned to ensure that the comparison of post-transition relapses would have sufficient power.
The maternal characteristics at entry to the study in the different study groups were similar (Table 1).
This second analysis was first performed for (A) the full study group, (B) men unexposed at entry to the study, (C) men exposed to α-blockers/TUR-P at entry to the study, and (D) men exposed to 5-ARI at entry to the study.
At entry to the study, women were randomised to take either tamoxifen (20 mg daily) or placebo for five years, with six-monthly follow-up appointments.
Overall, there were 126 cases who were younger than 46 years at entry to the study, and controls aged 46 years at entry to the study were selected for each of these cases.
We studied 130 children and adolescents (73 males, 57 females) with T1DM (average age at entry to the study 11.47 ± 3.72 years, range 0.83 19.21) and 135 healthy subjects (72 male, 63 females) without a family history of T1DM.
