Patients’ confidence in treatment decisions for early stage non-small cell lung cancer (NSCLC)
Background In early-stage Non-Small Cell Lung Cancer (NSCLC) patients, little is known about how to measure patient participation in Shared-Decision Making (SDM). We examined the psychometric properties and clinical acceptability of the Decision Self-Efficacy scale (DSE) in a cohort of patients undergoing to Stereotactic Ablative Radiotherapy (SABR) or Video-assisted Thoracoscopic Surgery (VATS) to capture patient involvement in treatment decisions.
Methods In the context of a prospective longitudinal study (Life after Lung Cancer-LiLAC) involving 244 patients with early-stage NSCLC, 158 (64.7%) patients completed the DSE either on paper or electronically online prior to treatment with SABR or VATS pulmonary resection. DSE psychometric properties were examined using: principal components analysis of item properties and internal structure, and internal construct validity; we also performed a sensitivity analysis according to Eastern Cooperative Oncology Group Performance Status (ECOG PS), gender, age and treatment received (VATS or SABR) difference.
Results Exploratory factor analysis using polychoric correlations substantiated that the 11 item DSE is one scale accounting for 81% of the variance. We calculated a value of 0.96 for Cronbach’s alpha for the total DSE score. DSE scores did not differ by gender ( p =0.37), between the two treatment groups (p=0.09) and between younger and older patients ( p =0.4). However, patients with an ECOG PS >1 have a DSE mean of 73.8 (SD 26) compared to patients with a PS 0-1 who have a DSE mean of 85.8 (SD 20.3 p =0.002).
Conclusion Findings provide preliminary evidence for the reliability and validity of the DSE questionnaire in this population. However, future studies are warranted to identify the most appropriate SDM tool for clinical practice in the lung cancer treatment field.
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Posted 18 May, 2020
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On 24 Mar, 2020
Received 12 Feb, 2020
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Patients’ confidence in treatment decisions for early stage non-small cell lung cancer (NSCLC)
Posted 18 May, 2020
On 18 Jul, 2020
On 30 Jun, 2020
Received 27 Jun, 2020
Received 25 Jun, 2020
On 03 Jun, 2020
On 30 May, 2020
Invitations sent on 30 May, 2020
On 07 May, 2020
On 06 May, 2020
On 06 May, 2020
On 24 Mar, 2020
Received 12 Feb, 2020
Received 09 Feb, 2020
On 25 Jan, 2020
On 23 Jan, 2020
Invitations sent on 22 Jan, 2020
On 20 Jan, 2020
On 19 Jan, 2020
On 19 Jan, 2020
On 17 Jan, 2020
Background In early-stage Non-Small Cell Lung Cancer (NSCLC) patients, little is known about how to measure patient participation in Shared-Decision Making (SDM). We examined the psychometric properties and clinical acceptability of the Decision Self-Efficacy scale (DSE) in a cohort of patients undergoing to Stereotactic Ablative Radiotherapy (SABR) or Video-assisted Thoracoscopic Surgery (VATS) to capture patient involvement in treatment decisions.
Methods In the context of a prospective longitudinal study (Life after Lung Cancer-LiLAC) involving 244 patients with early-stage NSCLC, 158 (64.7%) patients completed the DSE either on paper or electronically online prior to treatment with SABR or VATS pulmonary resection. DSE psychometric properties were examined using: principal components analysis of item properties and internal structure, and internal construct validity; we also performed a sensitivity analysis according to Eastern Cooperative Oncology Group Performance Status (ECOG PS), gender, age and treatment received (VATS or SABR) difference.
Results Exploratory factor analysis using polychoric correlations substantiated that the 11 item DSE is one scale accounting for 81% of the variance. We calculated a value of 0.96 for Cronbach’s alpha for the total DSE score. DSE scores did not differ by gender ( p =0.37), between the two treatment groups (p=0.09) and between younger and older patients ( p =0.4). However, patients with an ECOG PS >1 have a DSE mean of 73.8 (SD 26) compared to patients with a PS 0-1 who have a DSE mean of 85.8 (SD 20.3 p =0.002).
Conclusion Findings provide preliminary evidence for the reliability and validity of the DSE questionnaire in this population. However, future studies are warranted to identify the most appropriate SDM tool for clinical practice in the lung cancer treatment field.