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  • JAMA Surgery August 9, 2017

    Figure 2: Odds Ratio (OR) and 95% CI of Outcomes

    The crude model is adjusted for the number of cesarean deliveries, and the adjusted model contains the following variables: cesarean delivery, age, individual income, hypertension, cardiovascular disease, breast cancer and colon cancer, previous abdominal surgery, and route of hysterectomy.
  • JAMA Surgery August 1, 2017

    Figure 1: Population Prevalence of Frailty Components

    The most common Modified Frailty Index comorbidities include hypertension requiring medication and history of diabetes requiring treatment with oral antihyperglycemics or insulin. CABG indicates coronary artery bypass graft; CHF, congestive heart failure; COPD, chronic obstructive pulmonary disease; MI, myocardial infraction; PCI, percutaneous coronary intervention; and TIA, transient ischemic attack.
  • JAMA Surgery June 1, 2017

    Figure 2: Adjusted Odds Ratios for Surgical Complications

    Adjusted for total unsolicited patient observations, patient factors (age, sex, race/ethnicity as recorded in the site’s medical record, body mass index, functional status, American Society of Anesthesiologists class, ventilator dependence, history of severe chronic obstructive pulmonary disease, history of severe congestive heart failure, diabetes prior to the procedure, hypertension requiring medication in the prior 30 days, preoperative renal failure, or disseminated cancer at the time of the operation), operative characteristics (surgeon specialty, number of cases contributed to the study cohort by the surgeon, case urgency, wound classification, long operative time [calculated as operative time >75th percentile for each Current Procedural Terminology code]), and deidentified study site. Horizontal lines indicate 95% CIs.
  • JAMA Surgery June 1, 2017

    Figure 3: Adjusted Complication Rate by Quartiles of the Operating Surgeon’s Unsolicited Patient Observations in the 24 Months Preceding the Operation

    Adjusted for total unsolicited patient observations, patient factors (age, sex, race/ethnicity as recorded in the site’s medical record, body mass index, functional status, American Society of Anesthesiologists class, ventilator dependence, history of severe chronic obstructive pulmonary disease, history of severe congestive heart failure, diabetes prior to the procedure, hypertension requiring medication in the prior 30 days, preoperative renal failure, or disseminated cancer at the time of the operation), operative characteristics (surgeon specialty, number of cases contributed to the study cohort by the surgeon, case urgency, wound classification, long operative time [calculated as operative time >75th percentile for each Current Procedural Terminology code]), and deidentified study site. Vertical lines indicate 95% CIs. Dashed horizontal line indicates the complication rate for the lowest quartile of unsolicited patient observations (9.6%).
  • JAMA Surgery February 1, 2017

    Figure 3: Neonatal and Labor Outcomes

    Data were obtained from Washington State birth certificates from January 1, 1980, to May 30, 2013, linked with maternal hospital discharge data from the Comprehensive Hospital Abstract Reporting System. Adjusted relative risks (RR) and 95% CIs are presented using Poisson regression with model structure as follows: (1) exposure was operation, (2) outcomes are listed in the far left column, and (3) maternal covariates were categorical variables for race/ethnicity, educational level, parity, hypertension, diabetes, birth year, and linear spline variables for age, body mass index, and annual household income. Congenital malformation was defined by International Classification of Diseases, Ninth Revision, codes 740 through 756. Missing body mass index values were imputed. LGA indicates large for gestational age; NICU, neonatal intensive care unit; NOMs, nonoperative mothers; OTB, operation-to-birth; POMs, postoperative mothers with a history of a bariatric surgery prior to conception; and SGA, small for gestational age.
  • Comprehensive Assessment of Factors Associated With In-Hospital Mortality After Elective Abdominal Aortic Aneurysm Repair

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    JAMA Surg. 2016; 151(9):838-845. doi: 10.1001/jamasurg.2016.0782

    This study describes the association of patient- and hospital-level factors on in-hospital mortality after elective abdominal aortic aneurysm repair.

  • Headache and Facial Swelling

    Abstract Full Text
    JAMA Surg. 2016; 151(5):483-484. doi: 10.1001/jamasurg.2015.4722

    A 49-year-old woman had headache, facial swelling, and elevated blood pressure. What is your diagnosis?

  • Clinical Factors Associated With Remission of Obesity-Related Comorbidities After Bariatric Surgery

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    JAMA Surg. 2016; 151(2):130-137. doi: 10.1001/jamasurg.2015.3231

    This study evaluated improvement in obesity-related comorbidities after bariatric surgery and identified clinical factors associated with these responses.

  • Long-term Metabolic Effects of Laparoscopic Sleeve Gastrectomy

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    JAMA Surg. 2015; 150(11):1051-1057. doi: 10.1001/jamasurg.2015.2202

    This cohort study evaluates the long-term effects of laparoscopic sleeve gastrectomy on obesity-related comorbidities.

  • Prediction of Nocturia Severity in Men: Nocturnal Urine Overproduction vs Race or Metabolic Risk Factors

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    JAMA Surg. 2015; 150(2):125-128. doi: 10.1001/jamasurg.2014.1332

    This retrospective review finds that neither race nor metabolic risk factors affect nocturia severity; however, variables that denote nocturnal urine overproduction sharply discriminate the risk of nocturia severity.

  • JAMA Surgery August 1, 2013

    Figure 1: Odds Ratios Adjusted for Potential Confounders and Mediators Described in Table 2 (ORadj-2) for 30-Day Postoperative Arterial and Respiratory Events for the 3 Smoker Groups (Past, Current, and Never)

    A, Postoperative arterial events depending on different combinations of smoking and history of cardiovascular disease (CVD), defined as any of the following: hypertension (requiring medication), angina (in 30 days prior), dyspnea (at rest, on moderate exertion, or none), congestive heart failure (in 30 days prior), myocardial infarction (in 6 months prior), previous percutaneous coronary intervention, previous cardiac surgery, peripheral vascular disease (requiring revascularization, angioplasty, or amputation), rest pain, transient ischemic attack, or cerebrovascular accident without or with neurologic deficit. No CVD in the never smoker group constituted the reference group. B, Postoperative respiratory events according to different combinations of smoking and history of chronic obstructive pulmonary disease (COPD). No COPD in the never smoker group constituted the reference group.
  • Image of the Month—Quiz Case

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    JAMA Surg. 2013; 148(1):101-101. doi: 10.1001/jamasurgery.2013.412a
  • Image of the Month—Quiz Case

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    Arch Surg. 2012; 147(8):781-781. doi: 10.1001/archsurg.2011.963
  • Image of the Month—Quiz Case

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    Arch Surg. 2012; 147(7):677-678. doi: 10.1001/archsurg.2012.261a
  • Image of the Month—Quiz Case

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    Arch Surg. 2012; 147(6):575-575. doi: 10.1001/archsurg.2011.677
  • Image of the Month—Quiz Case

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    Arch Surg. 2011; 146(12):1449-1449. doi: 10.1001/archsurg.146.12.1449
  • Image of the Month—Quiz Case

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    Arch Surg. 2011; 146(10):1215-1215. doi: 10.1001/archsurg.2011.261-a
  • Image of the Month—Quiz Case

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    Arch Surg. 2011; 146(9):1099-1099. doi: 10.1001/archsurg.2011.224-a
  • JAMA Surgery August 1, 2011

    Figure: Mission to Eliminate Postinjury Abdominal Compartment Syndrome

    Figure. Incidence of different intra-abdominal hypertension (IAH) categories.
  • Image of the Month—Quiz Case

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    Arch Surg. 2011; 146(8):985-985. doi: 10.1001/archsurg.2011.189-a