The phrase "at time of study" is not correct in standard written English.
It is typically intended to refer to a specific moment or period during which a study or research is conducted, but it is awkwardly phrased.
Example: "The participants were asked about their habits at the time of study."
Alternatives: "during the study" or "at the time of research".
Four mist-nets were located in each of six different forest clearcuts ranging in age from 1 to 7 years post-cut (at time of study initiation) and in size from 8.2 to 13.4 ha.
This solution was freshly prepared at time of study.
Hypertensive alcoholics (transitory hypertension) with blood pressures of 120/8 0mm Hg or less at time of study also had more abnormal PEP/LVET than matched normotensive alcoholics (0.415 +/- 0.03 vs 0.331 +/- 0.01, p less than 0.05).
The discharge MRC score was 53 (IQR 44; 60) and 51 (44; 58) in usual care and intervention groups, respectively (P = 0.86), and was also not different between groups in patients under MV at time of study entry: 52 (IQR: 44; 58) (n = 95) and 49 (43; 57) (n = 89) (P = 0.26).
Participants were excluded if they had been diagnosed with a past or present psychiatric, neurological, or medical disease as well as with psycho-pharmacological medication intake at time of study or within the last two months.
Factors examined as potential confounders or effect modifiers included age (at breast cancer diagnosis for cases, at time of study enrollment for controls), age at first birth, number of children, birth of a son, history of breastfeeding, miscarriage, abortion, oral contraceptive use, smoking status, age at menarche and number of cell equivalents tested for detection of FMc.
Age was recorded at time of study inclusion.
†Part year most recent data available at time of study.
His CD4 count was 41 cells/μL and viral load undetectable at time of study entry.
bOlder age at time of study in PAH group and at-risk groups versus others.
* Characteristic reflects status at time of study sample selection, October 2000.
