nonresponders

Those ignoring contact

Nonresponders are people who fail to respond to something, typically a treatment, medication, or survey.

In medical contexts, nonresponders are patients for whom a particular therapy proves ineffective: About 30% of patients were nonresponders to the drug.

In research, nonresponders are those who don't reply to questionnaires or participate when invited, which can skew study results.

The term implies an expected or hoped-for response that doesn't materialize.

clinical

patients

Those receiving medical treatment

medication · placebo · refractory · resistant · efficacy · dropout · protocol · dosage · intervention · outcomes

immunological

vaccines

Preparations conferring immunity

titers · immunocompromised · antigens · inoculation · protection · susceptible · breakthrough · variants · efficacy · vulnerable

research

surveys

Systematic information gathering

attrition · data · missing · validity · methodology · participants · demographics · followup · longitudinal · polling

Opposites
response action

nonrespondersresponders

Those who react

respondents · repliers · answerers · participants · contributors

Family

nonresponder

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