<Tr> <Th> Equation </Th> <Th> Variable </Th> <Th> Abbr . </Th> <Th> Example 1 </Th> <Th> Example 2 </Th> </Tr> <Tr> <Td> EER − CER </Td> <Td> <0: absolute risk reduction </Td> <Td> ARR </Td> <Td> (−) 0.3, or (−) 30% </Td> <Td> N / A </Td> </Tr> <Tr> <Td>> 0: absolute risk increase </Td> <Td> ARI </Td> <Td> N / A </Td> <Td> 0.1, or 10% </Td> </Tr> <Tr> <Td> (EER − CER) / CER </Td> <Td> <0: relative risk reduction </Td> <Td> RRR </Td> <Td> (−) 0.75, or (−) 75% </Td> <Td> N / A </Td> </Tr>

Calculating absolute risk reduction from relative risk reduction