At what stage of the transtheoretical model does a patient decide a change is necessary and intends to take action within the next month?

In the transtheoretical model, the preparation stage is characterized by the individual's decision that change is not only necessary but that they are ready to take steps towards that change in the near future, usually within the next month. During this stage, individuals often make plans to implement their intended changes, which can include gathering information, setting specific goals, or formulating strategies to achieve those goals.

This phase follows contemplation, where the individual is aware of the need for change but has not yet committed to actionable steps. In preparation, the individual has moved beyond just thinking about change and is actively planning for it, indicating a stronger commitment to change. This sets the foundation for action in the subsequent stage, where individuals begin to modify their behavior and practices to achieve their health or lifestyle goals.

By distinguishing preparation from other stages like precontemplation, where there is no intention to change, and maintenance, which focuses on sustaining the changes already made, it's clear that preparation is a pivotal point for initiating actual behavioral change.