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Dive into the research topics where Anne M. Stey is active.

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Featured researches published by Anne M. Stey.


Pediatrics | 2015

Outcomes and Costs of Surgical Treatments of Necrotizing Enterocolitis

Anne M. Stey; Elizabeth S. Barnert; Chi-Hong Tseng; Emmett B. Keeler; Jack Needleman; Mei Leng; Lorraine I. Kelley-Quon; Stephen B. Shew

BACKGROUND AND OBJECTIVES: Despite previous studies demonstrating no difference in mortality or morbidity, the various surgical approaches for necrotizing enterocolitis (NEC) in infants have not been evaluated economically. Our goal was to compare total in-hospital cost and mortality by using propensity score–matched infants treated with peritoneal drainage alone, peritoneal drainage followed by laparotomy, or laparotomy alone for surgical NEC. METHODS: Utilizing the California OSHPD Linked Birth File Dataset, 1375 infants with surgical NEC between 1999 and 2007 were retrospectively propensity score matched according to intervention type. Total in-hospital costs were converted from longitudinal patient charges. A multivariate mixed effects model compared adjusted costs and mortality between groups. RESULTS: Successful propensity score matching was performed with 699 infants (peritoneal drainage, n = 101; peritoneal drainage followed by laparotomy, n = 172; and laparotomy, n = 426). Average adjusted cost for peritoneal drainage followed by laparotomy was


Surgery | 2015

Extending the value of the National Surgical Quality Improvement Program claims dataset to study long-term outcomes: Rate of repeat ventral hernia repair

Anne M. Stey; Marcia M. Russell; Catherine A. Sugar; Bruce L. Hall; David S. Zingmond; Elise H. Lawson; Clifford Y. Ko

398 173 (95% confidence interval [CI]: 287 784–550 907), which was more than for peritoneal drainage (


Annals of Surgery | 2014

Measuring risk-adjusted value using Medicare and ACS-NSQIP: is high-quality, low-cost surgical care achievable everywhere?

Elise H. Lawson; David S. Zingmond; Anne M. Stey; Bruce L. Hall; Clifford Y. Ko

276 076 [95% CI: 196 238–388 394]; P = .004) and similar to laparotomy (


Journal of The American College of Surgeons | 2014

Are Procedures Codes in Claims Data a Reliable Indicator of Intraoperative Splenic Injury Compared with Clinical Registry Data

Anne M. Stey; Clifford Y. Ko; Bruce L. Hall; Rachel Louie; Elise H. Lawson; Melinda Maggard Gibbons; David S. Zingmond; Marcia M. Russell

341 911 [95% CI: 251 304–465 186]; P = .08). Adjusted mortality was highest after peritoneal drainage (56% [95% CI: 34–75]) versus peritoneal drainage followed by laparotomy (35% [95% CI: 19–56]; P = .01) and laparotomy (29% [95% CI: 19–56]; P < .001). Mortality for peritoneal drainage was similar to laparotomy. CONCLUSIONS: Propensity score–matched analysis of surgical NEC treatment found that peritoneal drainage followed by laparotomy was associated with decreased mortality compared with peritoneal drainage alone but at significantly increased costs.


Surgery | 2014

Cost-utility analysis of repair of reducible ventral hernia

Anne M. Stey; Matthew Danzig; Sylvia Qiu; Sujing Yin; Celia M. Divino

BACKGROUND Existing large clinical registries capture short-term follow-up. Yet, there are many important long-term outcomes in surgery, such as recurrence of a ventral hernia after ventral hernia repair. The goal of the current study was to conduct an exploratory analysis to determine whether the rates, timing, and risk factors for ventral hernia re-repair in claims data linked to registry data were consistent with the known clinical literature. STUDY DESIGN The American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) and Medicare inpatient claims linked data set from 2005 to 2008 was queried to identify ventral hernia re-repairs after index ventral hernia repairs. Survival analysis was used to examine the ventral hernia re-repair rate over time and to quantify the relationship with clinical variables. RESULTS Of 3,730 index ventral hernia repairs identified in ACS-NSQIP, 247 patients (6.6%) underwent re-repair of a ventral hernia during the study period (2005-2008) in the Medicare claims data. ACS-NSQIP clinical variables that were associated with the ventral hernia re-repair rate in Medicare claims data 1 year after index ventral hernia repair were being a smoker (hazard ratio [HR] = 1.70, P = .02), body mass index (HR = 1.16, P = .04), and postoperative superficial surgical-site infection (HR = 2.88, P < .001). CONCLUSION Long-term rate and timing of ventral hernia re-repair obtained from claims data were an underestimate compared with clinical studies. Yet, several known clinical risk factors for recurrence in the clinical registry were associated with the re-repair rate in claims data at one year. It may be possible to study certain long-term outcomes using selected reoperation rates using the technique of linked clinical registry-claims data, with an understanding that event rates are conservative estimates.


Journal of Craniofacial Surgery | 2016

Focusing quality improvement initiatives in pediatric plastic surgery-A descriptive study using the pediatric national surgical quality improvement program

Susan J. Flath-Sporn; Rachel R. Yorlets; Shawn J. Rangel; Anne M. Stey; Richard J. Redett; Mark M. Urata; John G. Meara; Amir H. Taghinia

Objective:To evaluate the relationship between risk-adjusted cost and quality for colectomy procedures and to identify characteristics of “high value” hospitals (high quality, low cost). Background:Policymakers are currently focused on rewarding high-value health care. Hospitals will increasingly be held accountable for both quality and cost. Methods:Records (2005–2008) for all patients undergoing colectomy procedures in the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) were linked to Medicare inpatient claims. Cost was derived from hospital payments by Medicare. Quality was derived from the occurrence of 30-day postoperative major complications and/or death as recorded in ACS-NSQIP. Risk-adjusted cost and quality metrics were developed using hierarchical multivariable modeling, consistent with a National Quality Forum–endorsed colectomy measure. Results:The study population included 14,745 colectomy patients in 169 hospitals. Average hospitalization cost was


Journal of The American College of Surgeons | 2015

Is There Hospital Variation in Long-Term Incisional Hernia Repair after Abdominal Surgery?

Anne M. Stey; Marcia M. Russell; Bruce L. Hall; Andy Lin; Melinda Maggard Gibbons; Elise H. Lawson; David S. Zingmond; Clifford Y. Ko

21,350 (SD


Surgical Endoscopy and Other Interventional Techniques | 2018

Hospital variation in rates of concurrent fundoplication during gastrostomy enteral access procedures

Anne M. Stey; Charles D. Vinocur; R. Lawrence Moss; Bruce L. Hall; Mark E. Cohen; Kari Kraemer; Clifford Y. Ko; Brian D. Kenney; Loren Berman

20,773, median


Archives of Otolaryngology-head & Neck Surgery | 2014

Identification of Opportunities for Quality Improvement and Outcome Measurement in Pediatric Otolaryngology

Rahul K. Shah; Anne M. Stey; Kris R. Jatana; Shawn J. Rangel; Emily F. Boss

16,092, interquartile range


Surgery | 2015

Clinical registries and quality measurement in surgery: a systematic review.

Anne M. Stey; Marcia M. Russell; Clifford Y. Ko; Greg D. Sacks; Aaron J. Dawes; Melinda Maggard Gibbons

14,341–

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Clifford Y. Ko

University of California

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Bruce L. Hall

American College of Surgeons

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Mark E. Cohen

American College of Surgeons

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Rachel Louie

University of California

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Brian D. Kenney

Nationwide Children's Hospital

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Charles D. Vinocur

Alfred I. duPont Hospital for Children

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Kari Kraemer

American College of Surgeons

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