The study’s extensive fieldwork encompassed 2,282 private healthcare providers dispersed across 253 towns in India, a dataset notable for its breadth and representativeness. Through a series of meticulously designed standardized patient visits, the researchers documented that an alarming 70 percent of providers administered antibiotics in cases of pediatric diarrhea despite the absence of bacterial infection indicators. More strikingly, among providers fully aware that antibiotics were not clinically indicated, nearly two-thirds still prescribed them, underscoring a profound dissonance between knowledge and practice.

Quantitatively dissecting the issue, the researchers differentiated between the knowledge gap—providers’ ignorance about appropriate treatment—and the know-do gap—providers’ failure to translate knowledge into action. Their analysis illuminated that merely closing the knowledge gap would effectuate a modest 6 percentage point reduction in inappropriate antibiotic prescriptions. However, bridging the know-do gap promised a fivefold greater impact, potentially curbing misuse by approximately 30 percentage points. This delineation fundamentally reframes the discourse on interventions aimed at antibiotic stewardship.

To unravel the behavioral underpinnings steering this disconnect, the team employed randomized controlled experiments probing provider motivations and beliefs. Contrary to entrenched assumptions, neither financial incentives derived from antibiotic sales nor shortages of oral rehydration salts (ORS)—the WHO-recommended frontline treatment for pediatric diarrhea—significantly influenced prescribing patterns. Instead, providers’ perceptions of patient expectations emerged as the pivotal factor. When patients explicitly voiced a preference for ORS, inappropriate antibiotic prescribing dropped by 17 percentage points on average, a trend especially pronounced in pharmacy settings, which often operate at the interface between clinical guidance and accessibility.

Complementing provider-focused experiments, a discrete choice analysis involving 1,189 caregivers revealed a striking misalignment between provider beliefs and actual patient preferences. Contrary to providers’ assumptions, caregivers demonstrated no preference for providers who prescribed antibiotics over those who recommended ORS. This misperception highlights a critical communication failure at the patient-provider interface, where imagined demands inadvertently drive inappropriate clinical practices.

Zachary Wagner, the study’s corresponding author and an economist at USC’s Center for Economic and Social Research, emphasized the transformative potential of these findings. He noted, “Our data reveal a striking disconnect: clinicians know antibiotics are wrong for most diarrhea cases, yet prescribe them anyway because they think parents expect ‘strong’ medicines.” He further articulated that reshaping provider perceptions of patient preferences, rather than inundating clinicians with additional didactic training, represents a strategic leverage point for global antibiotic stewardship efforts.

Echoing this sentiment, coauthor Neeraj Sood of USC’s Schaeffer Center and Price School underscored the broader ramifications of unnecessary antibiotic use in children, particularly in fostering antimicrobial resistance—a global public health threat transcending national boundaries. “By showing that patient–provider communication trumps financial motives,” Sood stated, “we give policymakers a laser-focused lever: help doctors understand real patient preferences.” His insights call for a paradigm shift from financial or supply-side interventions toward nuanced social and behavioral strategies.

The study’s granular data further reveal that less formally trained providers and pharmacies—notably the health system’s frontline access points—exhibited the largest know-do gaps. These settings, often characterized by informal or semi-formal service delivery, are uniquely sensitive to caregiver preference signaling. Interventions empowering caregivers to articulate their treatment expectations, alongside public awareness campaigns dispelling myths of antibiotic demand, could thus unlock outsized reductions in misuse. Manoj Mohanan of Duke University highlighted this potential, stating, “Interventions that empower caregivers to voice a preference for ORS, or public campaigns signaling that parents don’t demand antibiotics, could slash misuse at scale.”

Importantly, the research suggests that conventional methods focusing on provider knowledge dissemination or financial incentives are unlikely to succeed in isolation. Providing ORS stock or altering point-of-sale profit structures did not meaningfully change prescribing behavior, revealing the imperative to engage more deeply with psychosocial and communication dimensions of healthcare delivery.

By conducting randomized experiments in real-world clinical settings, the study reinforces the utility of experimental economics methodologies in health systems research. This approach elucidates causal mechanisms driving behavior, offering a replicable model for tackling complex challenges in global health.

As antimicrobial resistance continues to mount as a global crisis, representing a looming threat to modern medicine and public health, these findings offer a compelling blueprint for intervention. They advocate for targeted, contextually sensitive strategies that recognize the intricacies of patient-provider dynamics and cultural norms within India’s healthcare ecosystem.

In sum, the research unveils a powerful truth: tackling antibiotic overuse necessitates more than merely imparting knowledge or adjusting financial incentives. It demands reimagining the relational fabric of clinical decision-making, placing caregiver preferences and communication at the forefront of stewardship initiatives. This revelation not only augurs well for India—one of the largest antibiotic consumers worldwide—but also offers transferable lessons for healthcare systems globally wrestling with similar challenges.

The study was funded by the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) under grant number 5R01DK126049, exemplifying the crucial role of sustained investment in interdisciplinary research bridging economics, medicine, and behavioral science.

Subject of Research: Antibiotic overprescribing and behavioral drivers in pediatric diarrhea treatment

Article Title: Investigating the know-do gap in antibiotics prescribing: Experimental evidence from India

News Publication Date: 23 September 2025

Web References:

• https://doi.org/10.1126/sciadv.ady9868
• http://dx.doi.org/10.1126/sciadv.ady9868

References:
Zachary Wagner, Manoj Mohanan, Arnab Mukherji, Rushil Zutshi, Sumeet Patil, Jagadish Krishnappa, Somalee Banerjee, Neeraj Sood. Investigating the know-do gap in antibiotics prescribing: Experimental evidence from India. Science Advances, 10 September 2025.

Keywords: Public health, Antibiotics, Know-do gap, Pediatric diarrhea, India, Antibiotic stewardship, Patient-provider communication, Behavioral economics

As we dive into this research, it’s crucial to understand the backdrop against which this study is set. The elderly population is particularly susceptible to infections due to a combination of age-related physiological changes, comorbidities, and often, a weakened immune system. UTIs are among the most prevalent infections in nursing home residents, resulting in significant morbidity and health care costs. Despite the known risks of inappropriate antibiotic use, there remains a tendency for overprescription, driven by both clinical uncertainty and systemic factors within healthcare systems.

This research illuminates the stark disparities in antibiotic prescribing practices across the five countries involved in the study—each with its own healthcare policies, antibiotic stewardship programs, and cultural approaches to healthcare delivery. By analyzing data from different regions, the researchers were able to illustrate how local practices impact the overall management of UTIs, raising important questions about the standardization of care and the implementation of evidence-based guidelines.

One of the central findings of the study was the correlation between the availability of robust diagnostic tools and the appropriateness of antibiotic prescriptions. In nations where rapid diagnostic tests are readily accessible, there is a lower tendency to prescribe antibiotics without sufficient evidence. Conversely, in regions with limited diagnostic resources, practitioners often resort to empirical treatment based on clinical suspicion alone, which contributes to unnecessary antibiotic use. This underscores the need for investments in diagnostic technologies, particularly in resource-limited settings.

The study also highlighted the role of healthcare professionals’ training and awareness in influencing antibiotic prescribing behavior. In many nursing homes, staff may not always have access to the latest clinical guidelines or may lack the training necessary to effectively manage suspected UTIs. By providing targeted education and resources for healthcare providers, it may be possible to improve the appropriateness of antibiotic usage, thus minimizing the risk of resistance development and treatment failures.

Another perspective presented in the research is the significance of patient and family dynamics in the decision-making process regarding treatment. Patients in nursing homes often rely heavily on healthcare staff for guidance, and their own understanding of infections and antibiotics can vary significantly. Communicating effectively with both patients and their families about the rationale for treatment choices is critical in fostering compliance and understanding. Furthermore, the reluctance to withhold antibiotics, due to fears of adverse health outcomes, can lead to overprescribing practices, which need to be addressed through education and better communication strategies.

Additionally, the paper discusses the systemic challenges that exacerbate the issue of antibiotic misuse in nursing homes. Issues such as high staff turnover, inadequate staffing ratios, and time constraints make it difficult for healthcare personnel to engage in thorough assessments of residents who present with symptoms of UTIs. These systemic barriers contribute to the continuation of practices that may not align with the best available evidence, prompting an urgent call for systemic reforms that prioritize quality over quantity in healthcare delivery.

A closer look at the socio-economic factors influencing antibiotic prescribing patterns reveals stark contrasts among the participating countries. The study points out that regions with higher levels of healthcare funding and resources often demonstrate more stringent antibiotic stewardship practices. These insights emphasize the need for policymakers to prioritize funding in areas that directly address disparities in healthcare quality and accessibility for aging populations in nursing homes.

As the world grapples with the implications of antibiotic resistance, the findings of this research call for concerted action from health policymakers, practitioners, and researchers. It advocates for the development and implementation of standardized protocols for UTI management in nursing homes, emphasizing the significance of culture-specific adaptations of these guidelines to enhance relevance and efficacy in different regions.

In conclusion, the research by Hansen et al. is a crucial step towards understanding the complexities involved in antibiotic use for UTIs in nursing homes across Europe. By identifying the factors that contribute to inappropriate prescribing practices, the study lays a foundation for further inquiry and action. The promotion of best practices in antibiotic management not only has the potential to improve health outcomes for vulnerable populations but is also essential for combating the global threat of antibiotic resistance. Future research and policy initiatives must continue to explore these dimensions, ensuring that healthcare systems are equipped to meet the needs of their aging populations with the highest standards of care.

Subject of Research: Antibiotic use in nursing homes for urinary tract infections across Europe.

Article Title: Correction: Appropriateness of antibiotic use in nursing homes for suspected urinary tract infections: comparison across five European countries.

Article References:

Hansen, M.B., Lykkegaard, J., Hansen, M.P. et al. Correction: Appropriateness of antibiotic use in nursing homes for suspected urinary tract infections: comparison across five European countries.
Eur Geriatr Med (2025). https://doi.org/10.1007/s41999-025-01300-1

Image Credits: AI Generated

DOI:

Keywords: Antibiotic resistance, urinary tract infections, nursing homes, healthcare policy, Europe.