The Gall-Peters Projection world map. While originally created by James Gall in 1885, the Gall-Peters Projection came into public consciousness in 1967 when Arno Peters championed it as a more accurate representation of the size of countries. It was considered controversial for calling into question the way the âthird-worldâ is represented.
APC stands for Medicare's ambulatory payment classification. Hospitals use Medicare APC codes to bill the federal government for hospital services given to Medicare and Medicaid patients. Every item, machine or procedure used to care for a Medicare or Medicaid patient has a specialized code that is submitted by the hospital during the billing process.
Age Period Cohort Effect. Age period cohort (APC) analysis plays an important role in understanding time-varying elements in epidemiology. In particular, APC analysis discerns three types of time varying phenomena: Age effects, period effects and cohort effects.