- Narrative Review
- Natural Experiment
- Natural Focus of Infection
- Natural History of Disease
- Natural History Study
- Natural Rate of Increase (Decrease)
- Nearest Neighbor Method
- Necessary Cause
- Needle Stick
- Need(s)
- Needs Assessment
- Negative Controls
- Negative Predictive Value
- Negative Study
- Negative Transition
- Neonatal Mortality Rate
- Nested Case-Control Study
- Nested Design
- Net Migration
- Net Migration Rate
- Net Reclassification Index
- Net Reproduction Rate (NRR)
- Net Reproductive Rate (R)
- Network
- Nidus
- NNT
- NNH
- NNS
- Nocebo
- Node
- N-Of-One Study
- Noise (In Data)
- Nomenclature
- Nominal Scale
- Nomogram
- Non-Communicable Disease
- Nonconcurrent Study
- Non-Contagious Events.
- Nondifferential Misclassification
- Nonexperimental Study
- NonGenotoxic Carcinogens
- Non-Inferiority Trial
- Non-Inferiority Margin
- NonMaleficence
- NonMonotonic
- NonParametric Methods
- NonParametric Test
- NonParticipants
- No-Observed-Adverse-Effect Level (NOAEL)
- Norm
- Normal
- Normal Distribution
- Normal Limits
- Normative
- Nosocomial
- Nosocomial Infection
- Nosography, Nosology
- Notifiable Disease
- N.S.
- Null Hypothesis
- Null Study
- Number Needed To Harm (NNH)
- Number Needed To Screen (NNS)
- Number Needed To Treat (NNT)
- Numerator
- Numerical Taxonomy
Number Needed To Harm (NNH) (Syn: Number Needed to be treated to Harm one person)
- Source:
- A Dictionary of Epidemiology
- Author(s):
Miquel Porta
1. The number of persons needed to be treated, on average, to produce one more adverse event (e.g., occurrence of a disease, complication, adverse reaction, relapse) than would have occurred without the treatment. Average number of persons who need to receive the treatment for one of them to experience an adverse effect. It is a clinically oriented way of expressing the ...
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- Narrative Review
- Natural Experiment
- Natural Focus of Infection
- Natural History of Disease
- Natural History Study
- Natural Rate of Increase (Decrease)
- Nearest Neighbor Method
- Necessary Cause
- Needle Stick
- Need(s)
- Needs Assessment
- Negative Controls
- Negative Predictive Value
- Negative Study
- Negative Transition
- Neonatal Mortality Rate
- Nested Case-Control Study
- Nested Design
- Net Migration
- Net Migration Rate
- Net Reclassification Index
- Net Reproduction Rate (NRR)
- Net Reproductive Rate (R)
- Network
- Nidus
- NNT
- NNH
- NNS
- Nocebo
- Node
- N-Of-One Study
- Noise (In Data)
- Nomenclature
- Nominal Scale
- Nomogram
- Non-Communicable Disease
- Nonconcurrent Study
- Non-Contagious Events.
- Nondifferential Misclassification
- Nonexperimental Study
- NonGenotoxic Carcinogens
- Non-Inferiority Trial
- Non-Inferiority Margin
- NonMaleficence
- NonMonotonic
- NonParametric Methods
- NonParametric Test
- NonParticipants
- No-Observed-Adverse-Effect Level (NOAEL)
- Norm
- Normal
- Normal Distribution
- Normal Limits
- Normative
- Nosocomial
- Nosocomial Infection
- Nosography, Nosology
- Notifiable Disease
- N.S.
- Null Hypothesis
- Null Study
- Number Needed To Harm (NNH)
- Number Needed To Screen (NNS)
- Number Needed To Treat (NNT)
- Numerator
- Numerical Taxonomy
