The USPSTF follows a rigorous process to develop its recommendations. This involves reviewing existing research, assessing the balance of benefits and harms of the preventive service, and grading the strength of the evidence. The task force uses a letter grade system (A, B, C, D, or I) to indicate the strength of the recommendation, with A and B suggesting strong support for the service, C indicating selective offering, D advising against the service, and I signifying insufficient evidence.
