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Intuitively, the lower the number needed to harm, the worse the risk factor, with 1 meaning that every exposed person is harmed. NNH is similar to number needed to treat (NNT), where NNT usually refers to a positive therapeutic result and NNH to a detrimental effect or risk factor. Marginal metrics: NNT for an additional beneficial outcome (NNTB)
Authors such as Ben Goldacre believe that the risk difference is best presented as a natural number - drug reduces 2 cases of colon cancer to 1 case if you treat 10,000 people. Natural numbers, which are used in the number needed to treat approach, are easily understood by non-experts.
The number needed to treat (NNT) or number needed to treat for an additional beneficial outcome (NNTB) is an epidemiological measure used in communicating the effectiveness of a health-care intervention, typically a treatment with medication. The NNT is the average number of patients who need to be treated to prevent one additional bad outcome.
Number needed to harm: NNH 1 / (EER − CER) 10 Relative risk (risk ratio) RR EER / CER: 1.25 Relative risk increase RRI (EER − CER) / CER, or RR − 1 0.25, or 25%
The researchers calculated that using PREVENT equations could also decrease the number of adults who meet eligibility criteria for primary prevention statin use from 45.4 million to 28.3 million ...
NEPP extends the well-known measure number needed to treat (NNT) beyond the individual patient to the population. To describe the impact of a risk factor on causing ill health and disease the Population Impact Number of Eliminating a Risk factor (PIN − ER − t ) is defined as "the potential number of disease events prevented in a population ...
Doctors need to also determine whether body fat harms a person's health. ... Obesity should be more than a number, said Fitch, a co-founder and Chief Medical Officer of knownwell, an obesity and ...
Projections show that this number could reach 111.1% by 2029. ... Many are using retirement income calculators to check if they ... Experts say governments need to create policies that lower debt ...