The role of the ICU liaison nurse services on anxiety in family caregivers of patients after ICU discharge during COVID-19 pandemic: a randomized controlled trial

BACKGROUND: With the onset of the COVID-19 pandemic and the need to maintain social distancing and changes in wards' structure, families no longer access the routine support they received during the hospitalization of their patients in the ICU. This study aimed to determine the effects of ICU liaison nurse services on the anxiety in patients’ family caregivers after ICU discharge during the COVID-19 pandemic. METHODS: This randomized controlled trial was performed in western Iran from February 2020, to March 2021. Sixty subjects were selected from the family caregivers of the patients transferred from the ICU and were randomly assigned to the control (n = 30) and the intervention groups (n = 30). The control group received routine transfer care. In the intervention group, liaison nurse services were offered in 4 dimensions: patient support, family support, training, support of the ward’s staff, and the evaluation of the destination ward. The participants’ anxiety was measured using the Spielberger State Anxiety Inventory immediately after the patient transfer and 6 h after admission to the general ward. Data analyzed with SPSS V16, descriptive and inferential statistics, including Chi-square test, Mann–Whitney test, Wilcoxon test, and Generalized Linear Model with cumulative logit link function. Results were reported at a 0.05 significance level. RESULTS: A statistically significant difference was observed in baseline anxiety levels (P = 0.035) and age group (P < 0.001) between the intervention and control groups. After moderating baseline anxiety levels, the age group, and marital status, the impact of the intervention was significant (X(2) = 10.273, df = 1, P < 0.001), meaning that the intervention could reduce the relative chances of developing higher levels of anxiety by 92.1% (OR: 0.08, 95%CI: 0.017–0.373, P < 0.001). CONCLUSIONS: This study confirmed the positive impact of nursing services on reducing anxiety in family caregivers during the COVID-19 pandemic. It is recommended to use these services, especially during the COVID-19 condition, to facilitate the patient transfer, support the patient's family, and reduce the health care gap between the ICU and the ward. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12912-022-01034-6.