[Table/Fig-10]:

Categorization of risk levels

Risk levels	PRA model	Modified PRA model
Low risk	All parameters in the low risk area or at the most one parameter in the moderate risk category	All parameters in the low risk area or at the most one parameter in the moderate and high risk category
Moderate risk	Two parameter must be in the moderate risk category and not more than one parameter in the high risk categoryor the presences of one parameter each in moderate and high risk as moderate	At least three parameters in the moderate risk area and not more than one parameter in the high risk area
High risk	At least two parameters in the high-risk category	At least two parameters in the high risk category