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Group exposed to a risk factor (left) has increased risk of an adverse outcome (black) compared to the unexposed group (right). 4 individuals need to be exposed for 1 adverse outcome to occur (NNH = 4). In medicine, the number needed to harm (NNH) is an epidemiological measure that indicates how many persons on average need to be exposed to a ...
nuclear medicine: NMR: nuclear magnetic resonance: NNH: number needed to harm: NNT: number needed to treat: NO: nitric oxide: No. number NOF: neck of femur fracture (refers to hip fracture) NOMI: nonocclusive mesenteric ischemia Non rep. do not repeat NOS: nitric oxide synthase; not otherwise specified: NPA: nasal pharyngeal aspirate: NPH ...
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 adverse outcome (black) risk difference between the group exposed to the treatment (left) and the group unexposed to the treatment (right) is −0.25 (RD = −0.25, ARR = 0.25).
It might seem like a simple question. But the science behind a blue sky isn't that easy. For starters, it involves something called the Rayleigh effect, or Rayleigh scattering. But that same ...
Republicans who control the U.S. House of Representatives are trying to overcome internal differences on how to pay for President Donald Trump's sweeping tax cuts, with hardline conservatives ...
Two new studies suggest once again the importance of getting a good night's sleep for good health over a lifetime, as scientists pursue new understandings of restorative deep sleep.
Abbreviations are used very frequently in medicine. They boost efficiency as long as they are used intelligently. They boost efficiency as long as they are used intelligently. The advantages of brevity should be weighed against the possibilities of obfuscation (making the communication harder for others to understand) and ambiguity (having more ...