Table 2.

Overview of randomized controlled trials investigating the treatment effect from interventions using «guided imagery» on chronic pain.

Authors	Sample	Intervention	Control	Outcome measure	Results	Follow up
Verkaik et al. (2014)	FM (N = 53)	Guided imagery (n = 26)	Supportive group therapy (n = 27)	Pain intensity, self-efficacy, physical status.	No significant effects.	No significant improvement after 6 weeks.
Lewandowski (2004)	Patients with chronic pain (N = 42)	Guided imagery (n = 21)	Natural history (n = 21)	Pain intensity.	Significantly reduced pain intensity.	No follow-up.
Baird and Sands (2004)	Females (>65 years) with osteoarthritis (N = 28)	Guided imagery and progressive relaxation (n = 18)	Natural history (n = 10)	Pain intensity, mobility.	Significantly reduced pain intensity and improved mobility.	No follow-up.
Torres et al. (2018)	Females with FM (N = 56)	Relaxation and guided imagery (n = 33)	Natural history (n = 23)	Well-being, functional status, anxiety/depression, pain-perception.	Significantly improved well-being and reduced anxiety.	No significant improvement after 3 months.
Onieva-Zafra et al. (2015)	FM (N = 60)	Relaxation (n = 30)	Natural history (n = 30)	Pain intensity and depression.	Significantly reduced pain intensity and depression.	No significant improvement after 8 weeks.