I have therefore included a glossary of terms that may be useful. Bootstrap is a computer intensive method for estimating the accuracy of a result by randomly resampling the data set. Breier score is the average mean squared error of the predicted and observed event in any data set. Scores vary between 0 and 1. A more accurate Breier score has a value closer to 0.
Case series is a report on a series of patients with an exposure or an outcome of interest.
No control group is involved. Clinical practice guideline is a systematically developed statement designed to assist practitioner and patient make decisions about appropriate health care for specific clinical circumstances. Cochrane Collaboration is a volunteer organization of health care workers devoted to producing a database of systematic reviews and registry of randomized controlled clinical trials. The confidence interval provides a measure of the precision of the estimated outcome. Correlation coefficient is a measure of the degree to which 2 variables are related.