Covid-19 Vaccine and the Risk Involved in the Vaccine

In patients aged 65 and older (P), how does the use of the Covid-19 vaccine (I) compared to not receiving the vaccine (C) influence the risk of developing adverse reaction (O) within the first week of administration? Start with a statement of the problem and objective for the study, which articulates the main objectives that the study desires to achieve. Include a description of the theoretical framework to be utilized and a rationale for choosing a framework. Describe the significance and relevance of the problem. Why is this particular study needed? How will findings contribute to the field of advanced practice nursing? Why is this research needed?