J. Sanford Schwartz’s research while affiliated with University of Pennsylvania and other places

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Publications (238)


Number of clinical cases for which participants provided a categorical risk perception divided by the number of participants in each exposure level (never, rarerly, sometimes, often and all the time). For each exposure level, the bar chart is color-coded: black indicates that both clinical case severity and participant’s categorical risk perception are high; dark gray indicates that clinical case severity is high but the participant’s categorical risk perception is low or moderate; light gray indicates that clinical case severity is low but the participant’s categorical risk perception is high; and white indicates that clinical case severity is low and the participant’s risk perception is low or moderate.
Bar chart visualizing the average numerical risk perception for each combination of display configuration (Baseline, qSOFA Text, qSOFA Figure, PIRO Text, PIRO Figure) and clinical case severity (low or high). Numerical risk perception of a participant is the response to the question: “What is your numerical estimate for this patient’s risk of in-hospital death (percent)? (Select a number between 0 and 100%),” as discussed in Methods section. Average refers to the average numerical risk perception response of 91 study participants for each display configuration and clinical severity level.
Boxplot of numerical risk perception values associated with in-hospital mortality (from 0 to 100%) specific to high clinical severity case responses categorized by exposure level. High clinical severity is defined in the Methods section. No Alert represents the Baseline. Dots indicate outliers.
Boxplot of numerical risk perception values associated with in-hospital mortality (from 0 to 100%) specific to low clinical severity case responses categorized by exposure level. Low clinical severity is defined in the Methods section. No Alert represents the Baseline. Dots indicate outliers.
Study population characteristics. All data is self-reported, collected in an electronic survey administered prior to participation in the study.
Display and perception of risk: Analysis of decision support system display and its impact on perceived clinical risk of sepsis-induced health deterioration
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January 2022

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102 Reads

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2 Citations

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Ishika Pradhan

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Kristen Miller

Despite acknowledging the value of clinical decision support systems (CDSS) in identifying risk for sepsis-induced health deterioration in-hospitalized patients, the relationship between display features, decision maker characteristics, and recognition of risk by the clinical decision maker remains an understudied, yet promising, area. The objective of this study is to explore the relationship between CDSS display design and perceived clinical risk of in-hospital mortality associated with sepsis. The study utilized data collected through in-person experimental sessions with 91 physicians from the general medical and surgical floors who were recruited across 12 teaching hospitals within the United States. Results of descriptive and statistical analyses provided evidence supporting the impact of display configuration and clinical case severity on perceived risk associated with in-hospital mortality. Specifically, findings showed that a high level of information (represented by the Predisposition, Infection, Response and Organ dysfunction (PIRO) score) and Figure display (as opposed to Text or baseline) increased awareness to recognizing the risk for in-hospital mortality of hospitalized sepsis patients. A CDSS display that synthesizes the optimal features associated with information level and design elements has the potential to enhance the quantification and communication of clinical risk in complex health conditions beyond sepsis.

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Effect of Ventral vs Dorsal Spinal Surgery on Patient-Reported Physical Functioning in Patients With Cervical Spondylotic Myelopathy: A Randomized Clinical Trial

March 2021

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169 Reads

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138 Citations

JAMA The Journal of the American Medical Association

Importance Cervical spondylotic myelopathy is the most common cause of spinal cord dysfunction worldwide. It remains unknown whether a ventral or dorsal surgical approach provides the best results. Objective To determine whether a ventral surgical approach compared with a dorsal surgical approach for treatment of cervical spondylotic myelopathy improves patient-reported physical functioning at 1 year. Design, Setting, and Participants Randomized clinical trial of patients aged 45 to 80 years with multilevel cervical spondylotic myelopathy enrolled at 15 large North American hospitals from April 1, 2014, to March 30, 2018; final follow-up was April 15, 2020. Interventions Patients were randomized to undergo ventral surgery (n = 63) or dorsal surgery (n = 100). Ventral surgery involved anterior cervical disk removal and instrumented fusion. Dorsal surgery involved laminectomy with instrumented fusion or open-door laminoplasty. Type of dorsal surgery (fusion or laminoplasty) was at surgeon’s discretion. Main Outcomes and Measures The primary outcome was 1-year change in the Short Form 36 physical component summary (SF-36 PCS) score (range, 0 [worst] to 100 [best]; minimum clinically important difference = 5). Secondary outcomes included 1-year change in modified Japanese Orthopaedic Association scale score, complications, work status, sagittal vertical axis, health resource utilization, and 1- and 2-year changes in the Neck Disability Index and the EuroQol 5 Dimensions score. Results Among 163 patients who were randomized (mean age, 62 years; 80 [49%] women), 155 (95%) completed the trial at 1 year (80% at 2 years). All patients had surgery, but 5 patients did not receive their allocated surgery (ventral: n = 1; dorsal: n = 4). One-year SF-36 PCS mean improvement was not significantly different between ventral surgery (5.9 points) and dorsal surgery (6.2 points) (estimated mean difference, 0.3; 95% CI, −2.6 to 3.1; P = .86). Of 7 prespecified secondary outcomes, 6 showed no significant difference. Rates of complications in the ventral and dorsal surgery groups, respectively, were 48% vs 24% (difference, 24%; 95% CI, 8.7%-38.5%; P = .002) and included dysphagia (41% vs 0%), new neurological deficit (2% vs 9%), reoperations (6% vs 4%), and readmissions within 30 days (0% vs 7%). Conclusions and Relevance Among patients with cervical spondylotic myelopathy undergoing cervical spinal surgery, a ventral surgical approach did not significantly improve patient-reported physical functioning at 1 year compared with outcomes after a dorsal surgical approach. Trial Registration ClinicalTrials.gov Identifier: NCT02076113


(a) PIRO text display and (b) qSOFA text display.
(a) PIRO figure display and (b) qSOFA figure display.
Informatics and interaction: Applying human factors principles to optimize the design of clinical decision support for sepsis

March 2020

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113 Reads

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7 Citations

In caring for patients with sepsis, the current structure of electronic health record systems allows clinical providers access to raw patient data without imputation of its significance. There are a wide range of sepsis alerts in clinical care that act as clinical decision support tools to assist in early recognition of sepsis; however, there are serious shortcomings in existing health information technology for alerting providers in a meaningful way. Little work has been done to evaluate and assess existing alerts using implementation and process outcomes associated with health information technology displays, specifically evaluating clinician preference and performance. We developed graphical model displays of two popular sepsis scoring systems, quick Sepsis Related Organ Failure Assessment and Predisposition, Infection, Response, Organ Failure, using human factors principles grounded in user-centered and interaction design. Models will be evaluated in a larger research effort to optimize alert design to improve the collective awareness of high-risk populations and develop a relevant point-of-care clinical decision support system for sepsis.



Figure 1 Steps in PreProCare tool development. Schematic representation of the steps leading to the development of PreProCare tool.
Figure 2 Sources of attributes. Various sources used for determining attributes and finalization of attributes.
Synthesis of Patient-Centered Outcomes Evidence for Localized Prostate Cancer 33
Patient-Centered Approach to Develop the Patient’s Preferences for Prostate Cancer Care (PreProCare) Tool

June 2019

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360 Reads

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8 Citations

MDM Policy & Practice

Objectives. To describe the development of our Patient Preferences for Prostate Cancer Care (PreProCare) tool to aid patient-centered treatment decision among localized prostate cancer patients. Methods. We incorporated patient and provider experiences to develop a patient preference elicitation tool using adaptive conjoint analysis. Our patient-centered approach used systematic literature review, semistructured patient interviews, and provider focus groups to determine the treatment attributes most important for decision making. The resulting computer-based PreProCare tool was pilot tested in a clinical setting. Results. A systematic review of 56 articles published between 1995 and 2015 yielded survival, cancer recurrence, side effects, and complications as attributes of treatment options. We conducted one-on-one interviews with 50 prostate cancer survivors and 5 focus groups of providers. Patients reported anxiety, depression, treatment specifics, and caregiver burden as important for decision making. Providers identified clinical characteristics as important attribute. Input from stakeholders’ advisory group, physicians, and researchers helped finalize 15 attributes for our PreProCare preference assessment tool. Conclusion. The PreProCare tool was developed using a patient-centered approach and may be a feasible and acceptable preference clarification intervention for localized prostate cancer patients. The PreProCare tool may translate into higher participant engagement and self-efficacy, consistent with patients’ personal values.


Patient-Centered Preference Assessment to Improve Satisfaction With Care Among Patients With Localized Prostate Cancer: A Randomized Controlled Trial

March 2019

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61 Reads

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45 Citations

Journal of Clinical Oncology

Purpose: To study the effectiveness of the Patient Preferences for Prostate Cancer Care (PreProCare) intervention in improving the primary outcome of satisfaction with care and secondary outcomes of satisfaction with decision, decision regret, and treatment choice among patients with localized prostate cancer. Methods: In this multicenter randomized controlled study, we randomly assigned patients with localized prostate cancer to the PreProCare intervention or usual care. Outcomes were satisfaction with care, satisfaction with decision, decision regret, and treatment choice. Assessments were performed at baseline and at 3, 6, 12, and 24 months, and were analyzed using repeated measures. We compared treatment choice across intervention groups by prostate cancer risk categories. Results: Between January 2014 and March 2015, 743 patients with localized prostate cancer were recruited and randomly assigned to receive PreProCare (n = 372) or usual care (n = 371). For the general satisfaction subscale, improvement at 24 months from baseline was significantly different between groups (P < .001). For the intervention group, mean scores at 24 months improved by 0.44 (SE, 0.06; P < .001) from baseline. This improvement was 0.5 standard deviation, which was clinically significant. The proportion reporting satisfaction with decision and no regret increased over time and was higher for the intervention group, compared with the usual care group at 24 months (P < .05). Among low-risk patients, a higher proportion of the intervention group was receiving active surveillance, compared with the usual care group (P < .001). Conclusion: Our patient-centered PreProCare intervention improved satisfaction with care, satisfaction with decision, reduced regrets, and aligned treatment choice with risk category. The majority of our participants had a high income, with implications for generalizability. Additional studies can evaluate the effectiveness of PreProCare as a mechanism for improving clinical and patient-reported outcomes in different settings.


“Implications of cost-sharing for observation care among Medicare beneficiaries: a pilot survey”

March 2019

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46 Reads

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4 Citations

BMC Health Services Research

Background Medicare beneficiaries hospitalized under observation status have significant cost-sharing responsibilities under Medicare Part B. Prior work has demonstrated an association between increased cost-sharing and health care rationing among low-income Medicare beneficiaries. The objective of this study was to explore the potential impact of observation cost-sharing on future medical decision making of Medicare beneficiaries. Methods Single-center pilot cohort study. A convenience sample of Medicare beneficiaries hospitalized under observation status care was surveyed. Results Out of 144 respondents, low-income beneficiaries were more likely to be concerned about the cost of their observation stay than higher-income respondents (70.7% vs29.3%, p = 0.015). If hospitalized under observation status again, there was a trend among low-income beneficiaries to request completion of their workup outside of the hospital (56.3% vs 43.8%), and to consider leaving against medical advice (AMA) (100% vs 0%), though these trends were not statistically significant (p = 0.30). Conclusion The results of this pilot study suggest that low-income Medicare beneficiaries hospitalized under observation status have greater concerns about their cost-sharing obligations than their higher income peers. Cost-sharing for observation care may have unintended consequences on utilization for low-income beneficiaries. Future studies should examine this potential relationship on a larger scale. Electronic supplementary material The online version of this article (10.1186/s12913-019-3982-8) contains supplementary material, which is available to authorized users.



Citations (84)


... Em uma equipe treinada para atendimento ao código sepse, analisaram a autopercepção da sepse comparada a escores clínicos (NEWS, qSOFA entre outros), com resultados inferiores da autoidentificação em relação ao uso dos escores. A autopercepção de médicos e enfermeiros no código sepse é de extrema importância, mas muitas vezes subestimada, predispondo a maior risco de deterioração clínica (CAPAN M. et al. 2022). O treinamento da equipe e o uso de escores trouxe redução de desfechos indesejáveis em diversos estudos. ...

Reference:

Deterioração clínica no código sepse em pacientes graves: estudo retrospectivo
Display and perception of risk: Analysis of decision support system display and its impact on perceived clinical risk of sepsis-induced health deterioration

... There are approximately 605 cases of clinical DCM per million people in North America (Tetreault et al., 2015). Progression of DCM could result in irreversible spinal cord damage and extremity disability and thus need an expensive operation as treatment (more than USD 2 billion per year) (Ghogawala et al., 2021;Milligan et al., 2019). The pathogenesis of DCM encompasses a multifaceted interplay of static and dynamic factors (Tu et al., 2021;Moghaddamjou et al., 2020). ...

Effect of Ventral vs Dorsal Spinal Surgery on Patient-Reported Physical Functioning in Patients With Cervical Spondylotic Myelopathy: A Randomized Clinical Trial
  • Citing Article
  • March 2021

JAMA The Journal of the American Medical Association

... Survivorship refers to the experience of living through and overcoming cancer, with an emphasis on overall physical, emotional, social, and spiritual health. 6 For many individuals, survivorship represents a new beginning, as they navigate recovery and ongoing care. Healthcare professionals should prioritize educating and empowering patients to make informed decisions about their treatment. ...

Patient-Centered Approach to Develop the Patient’s Preferences for Prostate Cancer Care (PreProCare) Tool

MDM Policy & Practice

... Our participants desired an easy-to-digest alert that was, most importantly, accessible, unobtrusive, and believed to be clinically accurate. The acceptability of sepsis CDS relies on both its prediction accuracy and its presentation of information in a readily interpretable manner [28]. There is a growing body of evidence investigating the importance of human factors in CDS design, ranging from alert type to textual and graphical displays of information [25,28]. ...

Informatics and interaction: Applying human factors principles to optimize the design of clinical decision support for sepsis

... Surgical resection is a more traumatic means of treatment, and surgery-related regret has received more attention. Previous studies have investigated surgery-related regret among localized prostate cancer 7,11 and breast cancer patients 12 . Like the above cancers, PTMC is also known as an indolent cancer with controversial treatment, particularly thyroidectomy for low-risk PTMC 1,5 . ...

Patient-Centered Preference Assessment to Improve Satisfaction With Care Among Patients With Localized Prostate Cancer: A Randomized Controlled Trial
  • Citing Article
  • March 2019

Journal of Clinical Oncology

... We next examined whether cost-sharing and out-of-pockets expenses for observation care could be associated with financial strain and health care rationing among Medicare beneficiaries. 10 Prior studies have demonstrated that health care related financial strain is common, particularly among low to middle-income Medicare beneficiaries and that higher copays and cost-sharing have led to rationing of a wide range of health services, particularly among low-income beneficiaries. [11][12][13] It was unclear whether cost-sharing related to observation care could impact behavior towards observation care in a similar way. ...

“Implications of cost-sharing for observation care among Medicare beneficiaries: a pilot survey”

BMC Health Services Research

... Clinical practice guidelines exist to assist with VKA management decisions before an endoscopy. However, for many procedures, assumptions about the dangers of periprocedural bleeding often lead to a recommendation for anticoagulation interruption, despite limited evidence of the incremental risks of bleeding while continuing anticoagulation therapy [6]. ...

Should Procedures or Patients Be Safe? Bias in Recommendations for Periprocedural Discontinuation of Anticoagulation

Mayo Clinic Proceedings

... Acquiescence bias is described as a patient's tendency to agree with survey statements regardless of its content [23]. In studies of OAB, because OAB symptoms negatively affect quality of life, participants are more likely to rank any cue questions (even expected neutral cues) as triggers of urgency [24]. Participant attitudes may also influence self-reported symptoms [25]. ...

Knowledge and attitude for overactive bladder care among women: Development and measurement

BMC Urology

... 2,28,32,[49][50][51][52] Three recodes were excluded, because the full texts were not available. [53][54][55] The other two papers did not study the relationship between competition and hospital quality (Table 2). 56,57 ...

PD28-06 EFFECTS OF HOSPITAL COMPETITION ON RACIAL ETHNIC DISPARITY IN PROSTATE CANCER CARE
  • Citing Article
  • April 2018

The Journal of Urology

... A more critical approach considers shared decision-making as enacted and situated, temporally and spatially distributed across social relations (Clapp et al., 2019;Pilnick and Zayts, 2016;Rapley, 2008). From this perspective, shared decision-making is shaped by, and contributes to, the power dynamics between doctors and patients, institutions and individuals. ...

Surgical Consultation as Social Process: Implications for Shared Decision Making
  • Citing Article
  • December 2017

Annals of Surgery