The physical activity scale measured all physical activity rather than wandering, which has been shown in one study to be a predictor of falls in dementia.[40] It is likely that the more active patients were those with fewer problems with mobility, whereas the participants with disturbed mobility restricted their activity because of fear of falling, thus having fewer opportunities to fall.
Functional status has been found in many studies to be a key predictor of hospital mortality for older patients [ 1- 3].
Increased PP has been shown in a number of studies to be a strong predictor of cardiovascular diseases, even after other risk factors were controlled for (Dart and Kingwell 2001).
VAT has been extensively used as an indicator of the amount of abdominal fat, and has also been shown in case-control and cohort studies to be a strong predictor of the insulin resistance syndrome, diabetes, and coronary artery disease.
Patient self-rated health has been shown in numerous studies to be a good single-item predictor of mortality, disability, and health care utilization [ 9- 11].
This is recognized as a primary marker of inflammation and has been found in several studies to be an independent predictor of cancer prognosis [ 7, 8].
Psychosocial factors were suggested in prior studies to be an important predictor of working after injury 17 18; however, of the pre-injury psychosocial variables examined in this study, none were found to be important in predicting work status.
Few studies have identified FHIT to be a predictor of poor survival in OSCC [ 34] in HNSCC [ 35].
In line with earlier studies, low education seems to be a predictor of changes in self-reported health outcomes [ 13, 47].
In summary, most studies (12 of 15) showed that pretreatment FDG uptake is a predictor for survival in univariate analysis, whereas only 2 studies showed FDG uptake to be a predictor of survival in multivariate analysis.
