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Cherry-Picking Evidence Based Research: Impact on Maternity Care

The use of evidence-based research to develop hospital policy, guide patient care, and ensure informed consent is a cornerstone of modern medical practice. However, when institutions selectively choose—or "cherry-pick"—research to support their agenda, it can lead to policies that do not reflect the full scope of scientific evidence. This practice has significant implications for patient care and autonomy, particularly in maternity settings, where women’s health and well-being are at stake.


cherry picking evidence based care

Benefits of Using Evidence-Based Research


When applied correctly, evidence-based research can greatly improve patient care, ensuring that medical decisions and policies are grounded in the latest, most reliable data. This approach helps create standardized practices that are effective, safe, and tailored to specific patient populations. For instance, evidence showing the benefits of intermittent fetal monitoring in low-risk pregnancies should lead to more judicious use of continuous monitoring, reducing unnecessary interventions like caesarean sections.

The Risks of Cherry-Picking Evidence


Cherry-picking research, however, involves selecting studies that support a particular viewpoint while ignoring those that present contradictory or more nuanced data. This practice can distort patient care, resulting in policies that may not be in the best interest of patients.


  1. Incomplete or Misleading Information:


    Cherry-picking can result in the promotion of interventions based on partial evidence. For example, focusing solely on studies that support early induction of labour while ignoring research on the benefits of waiting for spontaneous labour can lead to increased unnecessary interventions, which carry risks for both the mother and baby. A study published in the Cochrane Database of Systematic Reviews highlights that waiting for spontaneous labour often leads to fewer medical interventions and better maternal outcomes.


  2. Bias in Policy Development:


    Policies influenced by selective evidence may overemphasize medicalized birth practices, such as caesarean sections or continuous fetal monitoring, at the expense of promoting natural and less invasive options, such as midwife-led care or home births. A review in the British Journal of Obstetrics and Gynaecology notes that when evidence supporting midwifery care is selectively ignored, the result can be an over-reliance on hospital-based obstetric interventions, even in low-risk pregnancies where they may not be necessary.


  3. Impact on Informed Consent:


    Informed consent requires that patients are provided with comprehensive, unbiased information about the risks and benefits of any medical procedure or intervention. When evidence is cherry-picked, it undermines this process by presenting a one-sided view. For example, routine cervical sweeps are often recommended towards the end of pregnancy in Irish hospitals, but many women report not being informed of the risks, such as discomfort or accidental membrane rupture. Research published in Midwifery highlights the importance of full disclosure in maintaining trust between patients and healthcare providers.


  4. Erosion of Patient Autonomy:


    By not presenting the full spectrum of available evidence, institutions may unintentionally—or even intentionally—restrict patient choices. In Ireland, where concerns about over-medicalization of birth have been raised, selectively applying evidence can marginalize women's preferences, leading to a birth experience that does not align with their values or desires. A report by The Irish Examiner in 2020 highlighted women’s growing dissatisfaction with the lack of respect for informed consent, particularly regarding interventions like induction and caesarean sections, which are often recommended without comprehensive discussion of alternatives.


Current Literature and Perspectives from Experts


Leading experts in obstetrics and midwifery advocate for the responsible use of evidence to guide patient care. Dr. Sarah Buckley, in her comprehensive review of the physiology of childbirth, emphasizes the need for healthcare providers to rely on a wide range of studies, rather than cherry-picking data that only supports institutional preferences.


Dr. Michel Odent, another prominent figure in natural childbirth, similarly advocates for a holistic approach to evidence-based care, arguing that the over-medicalization of birth stems from ignoring the substantial body of evidence supporting less interventionist approaches.


In Ireland, where concerns about the balance between medicalized birth and more natural approaches are ongoing, midwives and advocates for women’s health, like AIMS Ireland (Association for Improvements in the Maternity Services), argue that selective use of evidence in hospital policies often undermines women’s birth experiences. A 2019 report found that many Irish women felt pressured into accepting interventions without fully understanding the risks, which ties into the global conversation on the importance of respecting patient autonomy.


The Importance of Informed Consent and Holistic Evidence


To ensure that healthcare policies truly reflect the best interests of patients, it is essential that all relevant evidence is considered. Informed consent hinges on providing patients with comprehensive information, empowering them to make decisions based on their preferences and values. Cherry-picking evidence not only jeopardizes the quality of care but also undermines trust in the healthcare system.


In conclusion, while evidence-based research is critical to developing effective policies and ensuring informed consent, selectively choosing data can distort patient care. It is essential that healthcare providers and policymakers rely on comprehensive, unbiased research to promote patient autonomy, respect informed consent, and ensure that women receive safe and individualized maternity care.



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