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Conference Paper: Short-term and long-term outcomes for video-assisted thoracoscopic surgery and open lobectomy: Results from statistical analysis adjusting for treatment selection bias
Title | Short-term and long-term outcomes for video-assisted thoracoscopic surgery and open lobectomy: Results from statistical analysis adjusting for treatment selection bias |
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Other Titles | Short term and long term outcomes for VATS and open lobectomy: results from statistical analysis adjusting for treatment selection bias |
Authors | |
Issue Date | 2015 |
Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/ejca |
Citation | The 7th Annual Asian Oncology Summit in conjunction with the 11th Annual Conference of the Organisation for Oncology and Translational Research and the Inaugural Viral Hepatitis Summit (AOS 2015), Shanghai, China, 10-12 April 2015. In European Journal of Cancer, 2015, v. 51 suppl. 2, p. e26, abstract P0124 How to Cite? |
Abstract | BACKGROUND: Lack of equipoise limits the feasibility of a randomised study to compare short-term and long-term outcomes between video-assisted thoracoscopic surgery (VATS) and open lobectomy. CALGB observational data from a multi-institutional setting is available for the comparison. Because of the potential bias associated with treatment selection, standard statistical methods can yield biased estimates for treatment effect. We aim to investigate several statistical approaches, including multivariable regression modelling and propensity-score methods, which can be used to adjust for selection bias in the estimation of treatment effect. METHODS: 519 patients with stage I and II non-small-cell lung cancer, whose tumours had been collected as part of CALGB lung cancer tissue bank, were eligible to participate. Multivariable regression modelling and propensity score based methods (eg, matching and inverse probability weighting) were used to compare VATS and open lobectomy in terms of the length of post-operative hospital stay and overall survival. Propensity score for treatment selection was estimated via logistic model with age, race, sex, performance status, comorbidities, histology, tumour stage, and size as covariates. FINDINGS: Consistent with the primary findings from Nwogu et al. (2015), all statistical analyses indicate that VATS is associated with significantly shorter length of post-operative hospital stay. Univariate analysis shows VATS has longer overall survival than open lobectomy, but the survival benefit disappears in the multivariable regression and all propensity-score-based methods investigated. INTERPRETATION: Several statistical methods yield consistent results. This multi-institutional study supports the assertion that VATS lobectomy results in shorter hospital length of stay compared with open lobectomy for early stage non-small-cell lung cancer. Survival was similar between the two groups. |
Description | This journal suppl. entitled: 7th Annual Asian Oncology Summit and 11th Annual Conference of the Organisation for Oncology and Translational Research ... 2015 |
Persistent Identifier | http://hdl.handle.net/10722/233592 |
ISSN | 2023 Impact Factor: 7.6 2023 SCImago Journal Rankings: 2.501 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Wang, X | - |
dc.contributor.author | Lian, H | - |
dc.contributor.author | Nwogu, C | - |
dc.contributor.author | D’Cunha, J | - |
dc.contributor.author | Pang, HMH | - |
dc.date.accessioned | 2016-09-20T05:37:49Z | - |
dc.date.available | 2016-09-20T05:37:49Z | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | The 7th Annual Asian Oncology Summit in conjunction with the 11th Annual Conference of the Organisation for Oncology and Translational Research and the Inaugural Viral Hepatitis Summit (AOS 2015), Shanghai, China, 10-12 April 2015. In European Journal of Cancer, 2015, v. 51 suppl. 2, p. e26, abstract P0124 | - |
dc.identifier.issn | 0959-8049 | - |
dc.identifier.uri | http://hdl.handle.net/10722/233592 | - |
dc.description | This journal suppl. entitled: 7th Annual Asian Oncology Summit and 11th Annual Conference of the Organisation for Oncology and Translational Research ... 2015 | - |
dc.description.abstract | BACKGROUND: Lack of equipoise limits the feasibility of a randomised study to compare short-term and long-term outcomes between video-assisted thoracoscopic surgery (VATS) and open lobectomy. CALGB observational data from a multi-institutional setting is available for the comparison. Because of the potential bias associated with treatment selection, standard statistical methods can yield biased estimates for treatment effect. We aim to investigate several statistical approaches, including multivariable regression modelling and propensity-score methods, which can be used to adjust for selection bias in the estimation of treatment effect. METHODS: 519 patients with stage I and II non-small-cell lung cancer, whose tumours had been collected as part of CALGB lung cancer tissue bank, were eligible to participate. Multivariable regression modelling and propensity score based methods (eg, matching and inverse probability weighting) were used to compare VATS and open lobectomy in terms of the length of post-operative hospital stay and overall survival. Propensity score for treatment selection was estimated via logistic model with age, race, sex, performance status, comorbidities, histology, tumour stage, and size as covariates. FINDINGS: Consistent with the primary findings from Nwogu et al. (2015), all statistical analyses indicate that VATS is associated with significantly shorter length of post-operative hospital stay. Univariate analysis shows VATS has longer overall survival than open lobectomy, but the survival benefit disappears in the multivariable regression and all propensity-score-based methods investigated. INTERPRETATION: Several statistical methods yield consistent results. This multi-institutional study supports the assertion that VATS lobectomy results in shorter hospital length of stay compared with open lobectomy for early stage non-small-cell lung cancer. Survival was similar between the two groups. | - |
dc.language | eng | - |
dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/ejca | - |
dc.relation.ispartof | European Journal of Cancer | - |
dc.rights | © 2015. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | - |
dc.title | Short-term and long-term outcomes for video-assisted thoracoscopic surgery and open lobectomy: Results from statistical analysis adjusting for treatment selection bias | - |
dc.title.alternative | Short term and long term outcomes for VATS and open lobectomy: results from statistical analysis adjusting for treatment selection bias | - |
dc.type | Conference_Paper | - |
dc.identifier.email | Pang, HMH: herbpang@hku.hk | - |
dc.identifier.authority | Pang, HMH=rp01857 | - |
dc.identifier.doi | 10.1016/j.ejca.2015.06.077 | - |
dc.identifier.hkuros | 264710 | - |
dc.identifier.volume | 51 | - |
dc.identifier.issue | suppl. 2 | - |
dc.identifier.spage | e26, abstract P0124 | - |
dc.identifier.epage | e26, abstract P0124 | - |
dc.identifier.isi | WOS:000359357900072 | - |
dc.publisher.place | United Kingdom | - |
dc.customcontrol.immutable | sml 161116 | - |
dc.identifier.issnl | 0959-8049 | - |