Publications by authors named "Selçuk Erol Özünal"

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Effects of existential interventions on spiritual, psychological, and physical well-being in adult patients with cancer: Systematic review and meta-analysis of randomized controlled trials.

Psychooncology 2018 11 2;27(11):2531-2545. Epub 2018 Aug 2.

Department of Clinical Psychology and Psychotherapy, Ulm University, Germany.

Objectives: To synthesize the evidence of existential interventions in adult patients with cancer.

Methods: Embase, MEDLINE, CENTRAL, CINAHL, PsycINFO, PSYNDEX, and the WHO ICTRP were searched up until 26 January 2018. Eligibility criteria for studies were (1) adult patients with cancer, (2) evaluation of existential interventions, (3) compared with active/non-active control, (4) assessing relevant spiritual, psychological, or physical outcomes, and (5) conducted as randomized controlled trials. Standardized mean differences (Hedges' g) were calculated, and meta-analyses were conducted using random effects models. Effects were aggregated within four time horizons (post-treatment; ≤3 months; ≤6 months; >6 months). Heterogeneity was assessed by forest plots and I . Risk of bias was assessed using the Cochrane Risk of Bias Tool. This review has been registered with Prospero (CRD42016042895).

Results: A total of 3461 records were identified, of which 30 unique studies (3511 participants) were included in the review and 24 studies were included in meta-analyses. Existential interventions showed significant effects on existential well-being (g = 0.52; CI[0.13; 0.91; k = 10; I  = 85%) and quality of life (g = 0.21; CI[0.01; 0.42]; k = 17; I  = 75%) at post-treatment, on hope at post-treatment (g = 0.43; CI[0.12; 0.74]; k = 12; I  = 86%) and after 6 months (g = 0.25; CI[0.02; 0.48]; k = 3; I  = 0%) and on self-efficacy at post-treatment (g = 0.50; CI[0.09; 0.90]; k = 2; I  = 0%). No significant effects were found on the remaining outcomes and time points. Significant moderator effects were found for professional background of therapists, intervention concept, number of sessions, and setting.

Conclusions: This systematic review and meta-analysis provides evidence that adult patients with cancer across all stages and types benefit from existential interventions. Future research should strive towards a higher standardization in particular with respect to outcome assessments.
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http://dx.doi.org/10.1002/pon.4829DOI Listing
November 2018