The phrase "a previous study analysed" is correct and usable in written English.
It can be used when referring to research or findings from an earlier study in a scholarly or academic context.
Example: "A previous study analysed the effects of sleep deprivation on cognitive performance."
Alternatives: "an earlier study examined" or "a prior study investigated".
A previous study analysed BTG2 protein expression and correlated decreased nucleus expression to a more aggressive phenotype of breast cancer, although they did not detect a significant difference in survival [ 34].
A previous study analysed the response of the 'Nebbiolo' grapevine proteome to phytoplasma infection using a Coomassie Blue staining approach [ 7].
A previous study analysed cluster identification of the annualised raw incidence rates of county-level human brucellosis in China by using SaTScan and ArcGIS software.
A previous study analysed the effects of a 1.5-kb AtNCED3 promoter on tissue-specific expression in transgenic Arabidopsis; however, the GUS reporter gene was not induced in response to water deficit.
A previous study analysed the sera of patients that had undergone positive double blind, placebo-controlled food challenge to hexaploid wheat and identified the gene TaEXPB11 as one of 12 genes that encoded proteins binding to the IgE from wheat sensitive patients [ 19].
A previous study analysing pooling strategies in methylation studies demonstrated that pools could be an alternative technique when small amounts of DNA are available or when a reduction in cost is necessary to undertake the experiments.
In a previous study, analyses of validity were performed on the data from the 1994-omnibus by cross-tabulating LBP-days with LBP-ever and found to be satisfactory [ 13].
A previous study analysing BMI change over five years in the Swedish part of the present study population showed that low education among especially young women was associated with a higher BMI increase, accentuating the possibility that this group could be under risk of increasing ill health in the future [ 16].
In a previous study analysing invasive isolates from children, one important fact of the significant decrease in the prevalence of PCV7 serotypes (from 62.4% in 2000 to 14.6% in 2007) was that the reduction was followed by a significant decrease in non-susceptibility to penicillin and erythromycin (from 51.4% and 39.5%, respectively, to around 20% for both antibiotics in 2007) [ 12].
These phenotypes are consistent with a previous study analysing the molecular rescue of the PER-protein cycle in dark-reared animals of the same genotype [24].
A previous study analysing the US National Health and Nutrition Examination Survey found that ETS was positively associated with depressive symptoms after adjusting for age, ethnicity, gender, education, cardiovascular disease, respiratory disease, diabetes mellitus, hypertension, thyroid disease and cancer.
