For mammography intervals, which factor may adjust the interval for women aged 40-49 according to USPSTF considerations?

• A. It is always 2 years for all ages.
• B. It is determined by the clinician's preference.
• C. It is adjusted for 40-49 depending on policy.
• D. It is not recommended for any age group.

Answer: (C)

For screening mammography in women aged 40–49, the interval isn’t fixed; the USPSTF emphasizes individualized decision making and notes that the appropriate frequency can vary based on policy and system-level factors. In this age group, the balance of benefits and harms is more nuanced, so clinicians may adapt the interval to align with policy guidance, available resources, and patient values and risk factors. That means, rather than binding every patient to a single interval, the interval can be adjusted depending on policy context. The other options imply a universal rule or sole clinician preference, or that screening isn’t recommended at all, which isn’t how USPSTF guidance is framed for this age group.