target population

in epidemiology
https://doi.org/10.1351/goldbook.16130
  1. Collection of individuals, items, measurements, etc. about which inferences are required: The term is sometimes used to indicate the population from which a sample is drawn and sometimes to denote any reference population about which inferences are needed.
  2. Group of persons for whom an intervention is planned.
Source:
PAC, 2007, 79, 1153. (Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)) on page 1320 [Terms] [Paper]