Risk Score Calculation

Risk score calculated from Ramingham Point Scores. ... 

TABLE 9-5. CHD Risk Factors and Needed Risk Factors for Framingham Score Calculation... 

Prediction of risk using models requires a computer, a pocket calculator with an exponential function or internet-access (the ECST model can be found at www.stroke. ox.ac.uk). As an alternative, a simplified risk score based on the hazard ratios derived from the relevant risk model can be derived. Table 27.3 shows a score for the five-year risk of stroke on medical treatment in patients with recently symptomatic carotid stenosis derived from the ECST model. As is shown in the example, the total risk score is the product of the scores for each risk factor. Fig. 27.7 shows a plot of the total risk score against the five-year predicted risk of ipsilateral carotid territory ischemic stroke derived from the full model and is used as a nomogram for the conversion of the score into a risk prediction. 

A modihed FMEA template is provided in Table 8.4. This calculates relative risk before and after hazard controls are applied. Risk is calculated as a function of the likelihood of oecurrence, the severity of the hazard, and the probabihty of detection. Oliver Muth of Pfizer suggests the calculation of a Risk Priority Number (RPN), calculated from multiplying the scores given to likelihood, severity, and detection.The likelihood of an ocxurrence is rated on the following scale ... 

Using the industrial air pollution reports (toxic chemical air releases) of industries, EPA calculates a health risk score for each square kilometer of the United States. The health risk or probability that exposure to that particular air mass will induce illness is defined as the hazard multiplied by the exposure. 13 ... 

In calculating the hazards, EPA relies upon animal experiments and human studies for information to establish the probability of illness as a function of different exposure levels. The exposures used in the equation are derived from smokestack monitors strategically placed or from mathematical models that take meteorological factors into consideration. The paths taken by the pollution and numbers of males and females of different ages who reside in each area are taken into consideration in calculating health risk scores. 

Figure 8.37 (A) TIMI risk score for STE-ACS for predicting 30-day mortality (Morrow et al., 2000a,b). (B) Rates of all-case mortality, myocardial infarction and severe recurrent ischaemia prompting urgent revascularisation through 14 days after randomisation were calculated for...

The aggregate static risk score is calculated as follows ... 

Let Vi = y(Q). Denote W as the corresponding weight for with I.Wi = 1. Weight selection is among the most challenging components in BRA and will be discussed further in Section 15.7. Then the overall weighted benefit-risk score is calculated for each treatment arm as... 

One can regard the concept of individual risk scores similar to letting the number of subgroup go to infinity so that each individual forms their own subgroup. To develop a risk calculator for a clinically important event after exposure to a pharmaceutical product will require a large amount of data. In our opinion, the latter may become possible with advancements in computing technology and our ability to access data in claims database and electronic medical records. Statisticians should participate in such efforts to ensure that appropriate statistical methods are used to address possible sources of bias, especially selection bias, that are often associated with data from nonrandomized sources. 

Final risk score for a specific new product launch is calculated as the Sum of the weighted scores for each factor/Maximum score. 

By making assumptions about the numerical value of the above scores, it is possible to construct a spreadsheet that calculates a global risk score for both the baseline and ATM versions of the motorway. This spreadsheet can also be used to test the sensitivity to other uncertainties, e.g. the effect of changing the scores for individual hazards, the effect of assumptions made about the relative value of event and state hazards, or the effect of risk reduction effort on the large scoring hazards. 

Eine s first component is a risk score that compiles numerical values related to consequences, exposure, and probabilities. To calculate a risk score, extract the rating values from the Justification Eormula Rating Summary Sheet found in Table 1.1. 

The values derived are placed in the Risk Score Formula. Then yon would calculate a risk score. 

A formula has been devised which weighs the controlling factors and calculates the risk of a hazardous situation, giving a numerical evaluation to the urgency for remedial attention to the hazard. Calculated Risk Scores are then used to establish priorities for corrective action. 

Note The Risk Score or one case alone is meaningless. Additional hazardous simations must also be calculated for comparative purposes and a definite pattern. Additional cases are similarly calculated below.)... 

In a prospective follow-up study of 56 individuals with known CVD, a relationship between progression of atherosclerosis in the left main coronary artery and coronary risk factors was demonstrated (von Birgelen et al. 2004) (Fig. 3). In this study, the investigators applied three different, commonly used cardiovascular risk scores to subjects (Anderson et al. 1991 Assmann et al. 2002, and Conroy et al. 2003) and demonstrated a positive linear relationships between the calculated risk of CVD and plaque progression (Revkin et al. 2007). 

In this chapter, we present a disruption risk assessment procedure for determining the disruption risk scores of facilities and transportation links in a supply chain network. Disruption risk score is calculated from three factors hazard, vulnerability, and risk management practice. We also present the use of disruption risk scores as a risk parameter in a mathematical model. 

In this section, we present a framework for calculating the disruption risk score of each facility and each transportation link based on three main factors hazard, vulnerability, and risk management practice, and their attributes, as shown in Figure 7.1. Interested readers can refer to Kungwalsong (2013) for more detail on disruption risk assessment. 

Assess and calculate a risk score associated with each step based on the activities, tools, equipment, materials, environment, etc. Use the risk matrix to determine the probability and severity of the risk, as discussed in Chapter 8. 

---