Similarly, in human cocaine addicts, increased, decreased, and no change in DAT levels have been observed, with a preponderance of studies showing increased DAT levels in human addicts.
A systematic review of international studies – with a preponderance of studies conducted in the United States – found that 10%to48%8% of men and 30% to 60% of women were dependent on or used illicit drugs in the month before entering prison [ 3].
The review notes the absence of explicit conceptual frameworks, little detail on research design and methodology, and a preponderance of single case studies on particular issues.
There seems a preponderance of hospital-based studies on the prevalence of Allergic Conjunctivitis (AC) compared to community-based ones, particularly among children in Ghana and Africa as a whole.
As a result, our systematic review of the Australian literature does not reflect a well-established body of knowledge based on rigorous and comprehensive evaluations but rather a preponderance of largely descriptive studies in the published literature.
On the other hand, the present study did not find a preponderance of respiratory illness, despite studies emphasizing the health impact of air pollution in urban environments [ 40].
While there is a preponderance of hospital-based prevalence studies of AC in Ghana [ 20, 21] and Africa [ 22, 23], the same could possibly not be said of community-based studies.
In this regard, Bone demonstrated, in a retrospective study incorporating four major sepsis studies, a preponderance of morbidity and mortality in males compared to females [ 70].
Of particular interest in this region, the existence of three types of CTX-M families identified during the first year of study with a preponderance of CTX-M-1 in previous year and a persistence of CTX-M-15 later.
A study with a preponderance of 2-4 CL days per patient compared to a study with a preponderance of 10-12 CL days per patient would have vastly different observed CLAB rates when a hazard function is not constant - even when all other factors are identical (e.g., equal number of total CL days, similar patient population, and identical study design and methodology).
