How is a patient’s address recorded while incarcerated according to census guidelines?

Incarcerated individuals are typically recorded using their current institutional address, as this reflects their physical location at the time of data collection. This approach aligns with census guidelines that prioritize accurate reporting of a person's residence, which is particularly important in understanding demographic and health data.

Recording the current institutional address helps ensure that statistical analyses and public health assessments reflect the realities of the population being studied, as it identifies where individuals are living during confinement. This information can be crucial for various purposes, including health services planning and resource allocation.

While the other options may seem relevant in different contexts, they do not provide the same level of accuracy regarding the person's location at the time of data collection as the current institutional address does.