Effect of individualized communication skills training on physicians’ discussion of clinical trials in oncology: results from a randomized controlled trial

Table 4 Results of individual items of the COM-ON-rct-checklist

Item	Effect	Estimates	Standard error	Confidence interval 95%	p
Content specific items
Explore patient’s perception	Δ IG t₂	0.6297	0.3009	0.01998–1.2394	0.0433
Set an agenda	Δ IG t₂	0.1507	0.2279	−0.3110-0.6125	0.5124
Introduce treatment options	Δ IG t₂	0.1704	0.2443	−0.3241-0.6649	0.4898
Explain set up of research project	Δ IG t₂	0.3827	0.1815	0.01531–0.7500	0.0416
Explain process of randomisation	Δ IG t₂	0.1680	0.2285	−0.2946-0.6306	0.4666
Explain reason for randomisation	Δ IG t₂	0.7308	0.2812	0.1615–1.3001	0.0132
Define risks and side-effects	Δ IG t₂	−0.5135	0.2717	−1.0640-0.03703	0.0666
Define unknown effects of study	Δ IG t₂	0.5419	0.2437	0.04846–1.0354	0.0322
Voluntariness of participation	Δ IG t₂	0.2011	0.2473	−0.2995-0.7016	0.4212
General communication skills
Appropriate initiation	Δ IG t₂	0.6573	0.3743	−0.1018-1.4164	0.0876
Close discussion appropriately	Δ IG t₂	0.04456	0.2007	−0.3618-0.4509	0.8255
Use appropriate language	Δ IG t₂	0.2000	0.2507	−0.3075-0.7076	0.4300
Employ adequate nonverbal communication	Δ IG t₂	−0.05739	0.1937	−0.4495-0.3347	0.7686
Take pauses	Δ IG t₂	0.2851	0.2370	−0.1948-0.7649	0.2366
Show empathy to the patient	Δ IG t₂	0.03647	0.2794	−0.5291-0.6020	0.8968
Encourage asking questions	Δ IG t₂	0.1400	0.2880	−0.4430-0.7230	0.6297
Check understanding	Δ IG t₂	0.2901	0.2546	−0.2253-0.8056	0.2616
Structure the discussion	Δ IG t₂	0.4278	0.2245	−0.02663-0.8822	0.0643
Global
Global evaluation	Δ IG t₂	0.3960	0.1824	0.02671–0.7652	0.0363

Mixed model with parameter estimates, 95% confidence intervals, baseline level as covariate: CG t₁ vs. IG t₂

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