Race-based differences in duration of stay among universally insured coronary artery bypass graft patients in military versus civilian hospitals

Ritam Chowdhury, W. Austin Davis, Muhammad A. Chaudhary, Wei Jiang, Cheryl K. Zogg, Andrew J. Schoenfeld, Michael T. Jaklitsch, Tsuyoshi Kaneko, Peter A. Learn, Adil H. Haider, Eric B. Schneider

Research output: Contribution to journalArticle

Abstract

Background: Duration of stay for coronary artery bypass graft operation outcomes differs for black versus white patients, with differences often attributed to insurance. We examined black versus white differences in duration of stay among TRICARE-covered patients undergoing coronary artery bypass graft. Methods: Patients aged 18-64 years with TRICARE who underwent isolated coronary artery bypass graft (ICD-9CM 36.10-36.20) between 2006-2010 and who identified as black or white race were identified. Negative binomial regression, stratified by sex and military versus civilian facility, examined the duration of stay controlling for patient- and hospital-level factors. Results: Of 3,496 eligible patients, 2,904 underwent coronary artery bypass graft at 682 civilian and 592 at 11 military hospitals. Patients (mean age 56.2 years) were predominantly white (88.9%), male (88.7%), married (88.2%), and retired (87%). Black patients demonstrated longer duration of stay (8.6 vs 7.5 days, . P> .001), and overall duration of stay was longer at military facilities (8.1 vs 7.5 days, . P = .013). Among the men, mean duration of stay was 14% longer for black patients at civilian hospitals (95% confidence interval 1.07-1.22) with no race-based differences at military facilities. Conclusion: Among coronary artery bypass graft patients with TRICARE coverage, black, male patients demonstrated greater duration of stay at civilian facilities. Further work should examine care at military hospitals to elucidate factors that drive the apparent mitigation of race-related variability in duration of stay.

Original languageEnglish (US)
JournalSurgery (United States)
DOIs
StateAccepted/In press - 2016
Externally publishedYes

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Coronary Artery Bypass
Transplants
Military Facilities
Military Hospitals
Insurance
Confidence Intervals

ASJC Scopus subject areas

  • Surgery

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Race-based differences in duration of stay among universally insured coronary artery bypass graft patients in military versus civilian hospitals. / Chowdhury, Ritam; Davis, W. Austin; Chaudhary, Muhammad A.; Jiang, Wei; Zogg, Cheryl K.; Schoenfeld, Andrew J.; Jaklitsch, Michael T.; Kaneko, Tsuyoshi; Learn, Peter A.; Haider, Adil H.; Schneider, Eric B.

In: Surgery (United States), 2016.

Research output: Contribution to journalArticle

Chowdhury, R, Davis, WA, Chaudhary, MA, Jiang, W, Zogg, CK, Schoenfeld, AJ, Jaklitsch, MT, Kaneko, T, Learn, PA, Haider, AH & Schneider, EB 2016, 'Race-based differences in duration of stay among universally insured coronary artery bypass graft patients in military versus civilian hospitals', Surgery (United States). https://doi.org/10.1016/j.surg.2016.10.022
Chowdhury, Ritam ; Davis, W. Austin ; Chaudhary, Muhammad A. ; Jiang, Wei ; Zogg, Cheryl K. ; Schoenfeld, Andrew J. ; Jaklitsch, Michael T. ; Kaneko, Tsuyoshi ; Learn, Peter A. ; Haider, Adil H. ; Schneider, Eric B. / Race-based differences in duration of stay among universally insured coronary artery bypass graft patients in military versus civilian hospitals. In: Surgery (United States). 2016.
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abstract = "Background: Duration of stay for coronary artery bypass graft operation outcomes differs for black versus white patients, with differences often attributed to insurance. We examined black versus white differences in duration of stay among TRICARE-covered patients undergoing coronary artery bypass graft. Methods: Patients aged 18-64 years with TRICARE who underwent isolated coronary artery bypass graft (ICD-9CM 36.10-36.20) between 2006-2010 and who identified as black or white race were identified. Negative binomial regression, stratified by sex and military versus civilian facility, examined the duration of stay controlling for patient- and hospital-level factors. Results: Of 3,496 eligible patients, 2,904 underwent coronary artery bypass graft at 682 civilian and 592 at 11 military hospitals. Patients (mean age 56.2 years) were predominantly white (88.9{\%}), male (88.7{\%}), married (88.2{\%}), and retired (87{\%}). Black patients demonstrated longer duration of stay (8.6 vs 7.5 days, . P> .001), and overall duration of stay was longer at military facilities (8.1 vs 7.5 days, . P = .013). Among the men, mean duration of stay was 14{\%} longer for black patients at civilian hospitals (95{\%} confidence interval 1.07-1.22) with no race-based differences at military facilities. Conclusion: Among coronary artery bypass graft patients with TRICARE coverage, black, male patients demonstrated greater duration of stay at civilian facilities. Further work should examine care at military hospitals to elucidate factors that drive the apparent mitigation of race-related variability in duration of stay.",
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AU - Chowdhury, Ritam

AU - Davis, W. Austin

AU - Chaudhary, Muhammad A.

AU - Jiang, Wei

AU - Zogg, Cheryl K.

AU - Schoenfeld, Andrew J.

AU - Jaklitsch, Michael T.

AU - Kaneko, Tsuyoshi

AU - Learn, Peter A.

AU - Haider, Adil H.

AU - Schneider, Eric B.

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N2 - Background: Duration of stay for coronary artery bypass graft operation outcomes differs for black versus white patients, with differences often attributed to insurance. We examined black versus white differences in duration of stay among TRICARE-covered patients undergoing coronary artery bypass graft. Methods: Patients aged 18-64 years with TRICARE who underwent isolated coronary artery bypass graft (ICD-9CM 36.10-36.20) between 2006-2010 and who identified as black or white race were identified. Negative binomial regression, stratified by sex and military versus civilian facility, examined the duration of stay controlling for patient- and hospital-level factors. Results: Of 3,496 eligible patients, 2,904 underwent coronary artery bypass graft at 682 civilian and 592 at 11 military hospitals. Patients (mean age 56.2 years) were predominantly white (88.9%), male (88.7%), married (88.2%), and retired (87%). Black patients demonstrated longer duration of stay (8.6 vs 7.5 days, . P> .001), and overall duration of stay was longer at military facilities (8.1 vs 7.5 days, . P = .013). Among the men, mean duration of stay was 14% longer for black patients at civilian hospitals (95% confidence interval 1.07-1.22) with no race-based differences at military facilities. Conclusion: Among coronary artery bypass graft patients with TRICARE coverage, black, male patients demonstrated greater duration of stay at civilian facilities. Further work should examine care at military hospitals to elucidate factors that drive the apparent mitigation of race-related variability in duration of stay.

AB - Background: Duration of stay for coronary artery bypass graft operation outcomes differs for black versus white patients, with differences often attributed to insurance. We examined black versus white differences in duration of stay among TRICARE-covered patients undergoing coronary artery bypass graft. Methods: Patients aged 18-64 years with TRICARE who underwent isolated coronary artery bypass graft (ICD-9CM 36.10-36.20) between 2006-2010 and who identified as black or white race were identified. Negative binomial regression, stratified by sex and military versus civilian facility, examined the duration of stay controlling for patient- and hospital-level factors. Results: Of 3,496 eligible patients, 2,904 underwent coronary artery bypass graft at 682 civilian and 592 at 11 military hospitals. Patients (mean age 56.2 years) were predominantly white (88.9%), male (88.7%), married (88.2%), and retired (87%). Black patients demonstrated longer duration of stay (8.6 vs 7.5 days, . P> .001), and overall duration of stay was longer at military facilities (8.1 vs 7.5 days, . P = .013). Among the men, mean duration of stay was 14% longer for black patients at civilian hospitals (95% confidence interval 1.07-1.22) with no race-based differences at military facilities. Conclusion: Among coronary artery bypass graft patients with TRICARE coverage, black, male patients demonstrated greater duration of stay at civilian facilities. Further work should examine care at military hospitals to elucidate factors that drive the apparent mitigation of race-related variability in duration of stay.

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