The Impact of Colour and Ambient Light on the Anxiety of Hospitalized Patients in Coronary Care Unit of Imam Khomeini Hospital of Jiroft in 2018:An Interventional Study

Anxiety has multiple effects on heart performance; there are various pharmaceutical and non- pharmaceutical methods to reduce anxiety. Since different colors and ambient light have multiple effects on the patients’ anxiety, this study aimed to determine the impact of color and ambient light on the patients' anxiety in the coronary care unit of Jiroft Imam Khomeini Hospital in 2018.

This experimental study was conducted in the coronary care unit in Jiroft, 2018. Participants (240) were divided into four intervention groups and two control groups. The participants were asked for consent then they were randomly divided into groups of intervention and control to compare the effect of orange, purple (intervention groups) and dark blue with sunlight (control group) on anxiety. Data were collected using the Spielberger situational anxiety questionnaire in two stages of hospitalization and discharging for each patient. Data were analyzed using the analysis of variance.

According to the results of this study, there was a significant difference in the average score of hospitalized patients’ anxiety in the purple units (p=0.03) and purple units with sunlight (p=0.01).

The findings of this study showed that using purple and the integration of purple and sunlight in the coronary care unit can be useful in reducing patients' anxiety. Accordingly, it is better to consider the effect of purple and sunlight in the design of the coronary care unit.