The phrase "a previous study explored" is correct and usable in written English.
It can be used when referring to research or findings from an earlier study in academic or scientific writing.
Example: "A previous study explored the effects of sleep deprivation on cognitive performance."
Alternatives: "an earlier study investigated" or "a prior study examined".
A previous study exploring the overlap of CeD and RA susceptibility loci identified association to six regions [ 4].
Communication with health providers was a key barrier for Aboriginal people with cancer identified in a previous study exploring the experiences of Aboriginal people with cancer [ 12].
The choice of the excipients was motivated by a previous study exploring particle size, physical and chemical stability as well as cytotoxic activity in vitro of different formulations of paclitaxel (Gursoy et al, 2003).
A previous study exploring women's perceptions on maternal health care align with this finding, pointing out that women were aware of the complications associated with pregnancy and childbirth [ 27].
Moreover, TBAs were uncertain regarding the quality of care provided, which aligns with findings from a previous study exploring women's perception of maternal health-care services in this area [ 64].
The overall finding of this study is consistent with a previous study exploring women's perspective, which indicated that women in this region were strongly influenced by both cultural factors that promoted home delivery and the perceived poor quality of the health system in terms of erratic emergency transportation and the unfriendly approach of health-care providers [ 27].
We used a hierarchical linear model (random intercept model) that allows the consideration of both patient and hospital factors, while a previous study exploring variations in cost and LOS across hospitals for diagnosis-related groups used a two-step multilevel model.
In a previous study exploring the feasibility of a smoking cessation application (app), we found that about 77% of the respondents from three countries were ready to quit in the next 30 days without significant differences between countries in terms of age, operating system and number of quitting attempts.
In regards to verbal fluency, in a previous study exploring verbal retrieval/fluency in older adults with acquired sensorioneural hearing impairment, no significant association between hearing loss and category fluency performance was found, but this association was present in letter fluency, 46 suggesting a less flexible phonology in subjects with hearing loss.
