Abstract
Background
Studies have shown that Black patients are more likely to experience complications following breast reconstruction compared to other racial groups. Most of these studies have been conducted on patient populations focusing on either autologous or implant-based reconstruction without possible predictive indicators for complication disparities for all types of reconstruction procedures. The aim of this study is to elucidate disparities among patient demographics by identifying predictors of complications and postoperative outcomes among different racial/ethnic patients undergoing breast reconstruction utilizing multi-state, multi-institution, and national level data.
Methods
Patients in the Optum Clinformatics Data Mart that underwent all billable forms of breast reconstruction were identified via CPT codes. Demographics, medical history, and postoperative outcome data were collected by querying relevant reports of CPT, ICD-9, and ICD-10 codes. Outcomes analysis was limited to the 90-day global postoperative period. A multivariable logistic-regression analysis was performed to ascertain the effects of age, patient reported ethnicity, coexisting conditions, and reconstruction type on the likelihood of any common postoperative complication occurring. Linearity of the continuous variables with respect to the logit of the dependent variable was confirmed. Odds ratios and corresponding 95% confidence intervals were calculated.
Results
From over 86 million longitudinal patient records, our study population included 104,714 encounters for 57,468 patients who had undergone breast reconstruction between January 2003 and June 2019. Black race (relative to White), autologous reconstruction, hypertension, type II diabetes mellitus, and tobacco use were independent predictors of increased likelihood of complication. Specifically, the odds ratios for complication occurrence for Black, Hispanic, and Asian ethnicity (relative to White) were 1.09, 1.03, and 0.77, respectively. Black patients had an overall breast reconstruction complication rate of 20.4%, while the corresponding rate for White, Hispanic, and Asian patients were 17.0%, 17.9%, and 13.2%, respectively.
Conclusion
Our analysis of a national-level database shows that Black patients undergoing implant-based or autologous reconstruction have increased risk of complications, likely due to multifactorial components that play a role in the care of this patient population. While higher rates of comorbidities have been cited as a possible cause, providers must consider racial influences involving cultural context, historical mistrust in medicine, and physician/health institution factors that may drive this disparity of outcomes among our patients.
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Data Availability
Data/materials are not available publicly, but can be shared if requested and permitted by Stanford PHI Offices.
Code Availability
Code is not available publicly but can be shared if requested and approved by Stanford PHI offices.
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Acknowledgements
Data for this project were accessed using the Stanford Center for Population Health Sciences Data Core. The PHS Data Core is supported by a National Institutes of Health National Center for Advancing Translational Science Clinical and Translational Science Award (UL1 TR001085) and from internal Stanford funding. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIH.
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KT and TJ are lead authors, project management, idea formation, editing, analysis, and writing. MR, SF, JC, DS, and YN helped with manuscript writing, paper direction, and editing. JS assisted with more data analysis and study formation. RN is the corresponding author, and PI is the mentor of the projects.
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Appendices
Appendix 1
CPT codes used to identify patients in the Clinformatics® Database undergoing breast reconstruction, fat grafting, and complications requiring surgical intervention
Procedure | CPT |
---|---|
Implant-based breast reconstruction | 19,357, 11,970, 19,340, 19,342 |
Autologous breast reconstruction | 19,361, 19,364, 19,367, 19,368, 19,369 |
Fat grafting | 15,771, 15,772, 15,769, 20,926 |
Incision and drainage, deep abscess or hematoma, soft tissues of neck, or rhorax | 21,501 |
Image-guided fluid collection drainage by catheter (e.g., abscess, hematoma, seroma, lymphoma, and cyst) | 10,030 |
Incision and drainage of hematoma, seroma, or fluid collection | 10,140 |
Incision drainage of complex wound infection | 10,180 |
Secondary closure of surgical wound or dehiscence | 13,160 |
Tissue debridement | 11,042, 11,045 |
Muscle debridement | 11,043 |
Bone debridement | 11,044 |
Appendix 2
ICD-9 and ICD-10 codes used to identify patients in the Clinformatics® Database experiencing complications as a result of the index procedure
Diagnosis | ICD-9 | ICD-10 |
---|---|---|
Hematoma or hemorrhage | 99,812 | M7981, R58, T792XXD, T792XXXS, T792XXA, L7602, L7622 |
Seroma | 99,813 | L7634, M7098, T792XXD, T792XXS, T792XXA |
Deep vein thrombosis (DVT) or other vascular complication | 4510, 4511, 45,111, 45,119, 4512, 45,181, 45,189, 4519, 4531, 4532, 4534, 45,341, 45,342, 45,350, 45,351, 45,352, 4536, 4538, 45,389, 4539, 99,779, 9972 | T81718D, T81718S, T81718A, T8172XD, T8172XS, T8172XA I80201, I80202, I80203, I80221, I80222, I80223, I80229, I80231, I80232 I80233, I80239, I80241, I80242, I80243, I80251, I80252, I80253, I80291 I80292, I80293, I80299, I80209, I80249, I80259, I808, I82401, I82402 I82403, I82409, I82431, I82432, I82433, I824Y1, I824Y2, I824Y3, I82439 I824Y9, I82441, I82442, I82443, I82451, I82452, I82453, I82461, I82462 I82463, I82491, I82492, I82493, I824Z1, I824Z2, I824Z3, I82449, I82459 I82469, I82499, I824Z9, I8010, I8011, I8012, I8013, I82411, I82412 I82413, I82419, I80211, I80212, I80213, I80219, I82421, I82422, I82423 I82429, I82621, I82622, I82A11, I82A12, I82A13, I82A19, I82B11, I82B12 I82B13, I82B19, I82C11, I82C12, I82C13, I82C19 |
Breast reconstruction deformity and wound dehiscence | 8750, 8751, 8790, 8791, 9983, 99832x | T8130XD, T8130XS, T8130XA, T8132XD, T8132XS, T8132XA, T8131XD, T8131XS T8131XA, T8183XD, T8183XS, T8183XA, T8189XD, T8189XS, T8189XA, T8133A, T8133D, T8133S, S21002A, S21001A |
Postoperative infection | 9985, 99,850–99,859 | T8140XA, T8140XD, T8140XS, T8141XA, T8141XD, T8141XS, T8142XA, T8142XD, T8142XS, T8143XA, T8143XD, T8143XS, T8144XA, T8144XD, T8144XS, T8149XA, T8149XD, T8149XS, N611, T86822 |
Fat necrosis | 6113, 56,782 | N641, K654 |
Tissue necrosis | 99,883 | T8189XA |
Nonspecified complication of surgical care | 61,189 | T888XXD, T888XXS, T888XXA, N6489 |
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Johnstone, T., Thawanyarat, K., Rowley, M. et al. Racial Disparities in Postoperative Breast Reconstruction Outcomes: A National Analysis. J. Racial and Ethnic Health Disparities 11, 1199–1210 (2024). https://doi.org/10.1007/s40615-023-01599-1
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DOI: https://doi.org/10.1007/s40615-023-01599-1