Chandwani 2010.
Methods | Randomised controlled trial using minimisation | |
Participants | Women with diagnosed stage 0‐III breast cancer undergoing radiotherapy during the study period Recruited from The University of Texas M.D. Anderson Cancer Center Mean age not reported N = 81 |
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Interventions | • Yoga based on Patanjali`s yoga sutras (yoga postures, deep relaxation, breath control, meditation), 6 weeks, twice weekly for 60 minutes • Wait‐list, no treatment |
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Outcomes | Health‐related quality of life (Medical Outcomes Study 36‐item short‐form health survey) at week 7 and week 18 Depression (Center for Epidemiologic Studies Depression Scale) at week 7 and week 18 Anxiety (Speilberger State/Trait Anxiety Inventory) at week 7 and week 18 Fatigue (Brief Fatigue Inventory) at week 7 and week 18 Sleep disturbances (Pittsburgh Sleep Quality Index) at week 7 and week 18 |
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Notes | ||
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | "Participants were then randomly assigned to either the YG or the WL control group by use of minimization, a form of adaptive randomization described previously." |
Allocation concealment (selection bias) | Unclear risk | No information on allocation concealment |
Blinding of participants and personnel (performance bias) All outcomes | Unclear risk | No information on blinding |
Blinding of outcome assessment (detection bias) All outcomes | Unclear risk | No information on blinding |
Incomplete outcome data (attrition bias) All outcomes | Unclear risk | 10% dropout in the yoga group and 0% in the control group; intention‐to‐treat analysis |
Selective reporting (reporting bias) | Low risk | No protocol available but no hint of selective reporting |
Other bias | Low risk | No hint of other bias |