Describe how epidemiological data influence changes in health practices and decision-making. Choose a specific example, such as the proposed removal of oral phenylephrine from medications, the introduction of a new vaccine, or the reduction of smoking in public spaces. In your response, address the following:

1. What type of data (e.g., prevalence, incidence, mortality, effectiveness) is most critical for making decisions in your example?
2. How would you evaluate the reliability and validity of the data to ensure it supports evidence-based decision-making? 
3. What additional data or research would be necessary to strengthen the case for changing the practice or policy? In your response, consider the data, research, or approach used in another country.

Initial discussion question posts should be a minimum of 200 words and cite at least two references using APA style.