Final answer:
The question asks for NYHA patient classification data from the EMPA-REG trial, but the information given pertains to a study on heart attacks and does not provide the requested data.
Step-by-step explanation:
The question refers to the breakdown of patients by NYHA classification in the EMPA-REG OUTCOME trial. However, the information provided does not pertain to the EMPA-REG trial but instead appears to describe a different study related to the incidence of heart attacks among men and factors such as oral medication and depression score. In the provided study, men aged 50 to 84 were the population of interest, and 400 men participated. The experimental units were the individual men, while the explanatory variable was oral medication. The treatments compared were aspirin and a placebo, and the response variable noted whether a subject had a heart attack. Without the specific data on the EMPA-REG trial, we cannot accurately provide the breakdown of patients classified by NYHA.