Enhancing cardiovascular patients' knowledge of air pollution: a pilot study evaluating the impact of an educational intervention in cardiac rehabilitation.

The study had no control group, so knowledge changes could not be separated from other cardiac rehabilitation content or from simply attending a session. It used a convenience sample from one cardiac rehabilitation program, so results may not apply to other patients or settings. The sample was small and mostly male, with only 5 female participants. The questionnaire was designed by the research team, was not psychometrically validated, and relied on self-reported answers. The paper gives conflicting rules about which surveys were analysed: one sentence says only participants who completed both questionnaires were included, while another says all initiated surveys with at least one response were included. Face-to-face and online participants completed the post-questionnaire at different times, so immediate and retained knowledge may not be comparable. The study measured knowledge and intentions, not actual behavior change, long-term retention, or cardiovascular events.

The authors state that no financial support was received for the research, authorship, or publication.

Do not conclude that this educational session improves cardiovascular outcomes or changes patients' behavior. It measured short-term self-reported knowledge in a small pilot with no control group.