Singh · The American journal of managed care 2010 · pooled individual participant data analysis · n=3491

Preferred roles in treatment decision making among patients with cancer: a pooled analysis of studies using the Control Preferences Scale.

Cited 204 times in the scientific literature.

Level 3 - non-randomized controlled study

Pooled individual participant data analysis of non-randomized observational studies.

PubMed 20873956 · record verified 2026-08-28

What was done

Individual patient data were compiled across 6 clinical studies comprising 3,491 patients with cancer who completed the 2-item Control Preferences Scale to evaluate preferred versus actually experienced roles (active, collaborative, or passive) in treatment decision making, including demographic and US versus Canadian comparisons.

What was found

Preferred roles were 26% active, 49% collaborative, and 25% passive, whereas actual experienced roles were 30% active, 34% collaborative, and 36% passive. Concordance between preferred and actual roles occurred in roughly 61% of patients (6% had extreme discordance). Concordance was higher in men than women (66% vs 60%, P = .001) and in US than Canadian patients (84% vs 54%, P < .001). Passive roles were more frequently preferred and experienced by Canadian patients than US patients (42% vs 18%, P < .001), by women than men (40% vs 24%, P < .001), and by older compared to younger patients.

Why it matters

Although most cancer patients favor collaborative or active decision-making roles, nearly 40% experience discordance with their actual involvement, indicating a need for individualized communication strategies in oncology care.

Limits

The abstract does not report specific cancer types, stages, or treatment contexts, nor does it report confidence intervals or whether discordance impacted clinical or psychological outcomes.

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