In other studies, controversial correlations were found between the radiological report and surgical success, depending on whether the outcome was obtained according to the patients' perception or the surgeons' criteria [42, 44].
The prognostic significance of EBV expression is controversial, but the correlation of EBV positivity and poorer outcome has been described in some studies [ 41].
However, the association between tumor aromatase expression and outcome remains controversial; no consistent correlation between aromatase immunoreactivity, activity, or mRNA level and known clinicopathologic factors or outcome has been conclusively reported [ 35- 40].
Although serum insulin like growth factor type 1 (IGF-I) levels are negatively correlated with hemoglobin A1c (HbA1c) in patients with type 1 diabetes, this correlation is controversial in patients with type 2 diabetes mellitus (T2DM) because of the influence of multiple factors including insulin secretion and obesity.
Clinical studies focused on septic patients are controversial, showing either no correlation between ADAMTS13 activity and IL-6 levels [ 23] or in contrast, a strong inverse correlation between these parameters [ 21, 24].
This paper briefly reviews the controversial views on the correlation between coefficient and exponent in the power law equation of fatigue crack growth.
Other gene studies have also produced controversial results between the correlation of histone modifications and DNA methylation [ 11, 34, 35].
There are many controversial findings regarding the correlation between capillary blood glucose (CBG) and salivary glucose (SG) concentrations in the literature.
There is controversial data concerning the correlation of blood glucose levels in the sub-diabetic range (impaired fasting glucose (IFG) and impaired glucose tolerance (IGT)) with the cardiovascular risk.
A number of studies found that a faster convergence rate, older plate age, and higher upper plate absolute motion enhanced the triggering of the largest subduction zone events (Peterson and Seno1984; Ruff and Kanamori1983; Uyeda and Kanamori1979), even though the validity of such correlations remains controversial (Pacheco et al.1993).1993
