Which of the following is important in evaluating diabetes treatment?

Self-monitoring and glucose testing is essential in evaluating diabetes treatment because it enables individuals to track their blood glucose levels, understand how their body responds to food, medication, exercise, and other factors. This continuous monitoring helps in making informed decisions about diet and lifestyle, as well as adjusting medications as needed to maintain optimal blood glucose control. It provides crucial feedback to both the patient and healthcare providers about how effective the current treatment plan is, allowing for timely modifications if necessary.

While cost of insulin, frequency of doctor visits, and the patient's weight can all play roles in the overall management of diabetes, they do not provide as direct or immediate feedback on how well diabetes is being controlled. Monitoring blood glucose levels is a fundamental aspect of diabetes management, making it a key factor in evaluating treatment effectiveness.