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Introduction <p>Polypharmacy is a growing public health concern, yet its association with area-level socioeconomic deprivation in England has been under-explored.</p> Aim <p>To investigate whether socioeconomic&#xa0;deprivation, measured by the Index of Multiple Deprivation (IMD), is associated with polypharmacy among adults.</p> Method <p>We analysed cross-sectional data from the 2021 Health Survey for England, including 1705 adults aged 16+ who completed nurse visits and reported prescribed medication use in the past week. Polypharmacy was defined as the use of five or more prescribed medications. IMD scores were categorised into quintiles (least to most deprived). Multivariable logistic regression estimated adjusted odds ratios (ORs) with 95% confidence intervals (CIs), controlling for age, sex, ethnicity, multimorbidity, obesity, smoking, alcohol use, and GP visit frequency. A polynomial contrast test assessed linear trends, and adjusted predicted probabilities were calculated to illustrate the deprivation–polypharmacy gradient.</p> Results <p>In the fully adjusted model, adults residing in the most deprived IMD quintile had significantly higher odds of polypharmacy (OR 1.82; 95% CI 1.09–3.04; <i>p</i> = 0.022) compared to those living in the least deprived areas. No statistically significant associations were observed for intermediate quintiles. A polynomial contrast test confirmed a significant linear trend across IMD levels (<i>p</i> = 0.010), indicating that the odds of polypharmacy increased progressively with greater area-level deprivation. This gradient was further illustrated by adjusted predicted probabilities, which rose from 18.3% (95% CI 15.3–21.3%) in the least deprived quintile to 24.6% (95% CI 20.1–29.2%) in the most deprived (<i>p</i> &lt; 0.001).</p> Conclusion <p>Socioeconomic deprivation is independently associated with polypharmacy, even after adjusting for multimorbidity and other confounders, highlighting persistent health inequalities within England’s healthcare system. Targeted strategies, including regular medication reviews and enhanced access to care in deprived communities, may help mitigate risks and promote equity in prescribing practices.</p>

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Socioeconomic deprivation and its association with polypharmacy in England: results from a national cross-sectional survey

  • 期刊论文

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  • 发表日期：

    2025年8月23日

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  • Yusuff Adebayo Adebisi,
  • Najim Z. Alshahrani,
  • Duaa Abdullah Bafail

摘要

Introduction

Polypharmacy is a growing public health concern, yet its association with area-level socioeconomic deprivation in England has been under-explored.

Aim

To investigate whether socioeconomic deprivation, measured by the Index of Multiple Deprivation (IMD), is associated with polypharmacy among adults.

Method

We analysed cross-sectional data from the 2021 Health Survey for England, including 1705 adults aged 16+ who completed nurse visits and reported prescribed medication use in the past week. Polypharmacy was defined as the use of five or more prescribed medications. IMD scores were categorised into quintiles (least to most deprived). Multivariable logistic regression estimated adjusted odds ratios (ORs) with 95% confidence intervals (CIs), controlling for age, sex, ethnicity, multimorbidity, obesity, smoking, alcohol use, and GP visit frequency. A polynomial contrast test assessed linear trends, and adjusted predicted probabilities were calculated to illustrate the deprivation–polypharmacy gradient.

Results

In the fully adjusted model, adults residing in the most deprived IMD quintile had significantly higher odds of polypharmacy (OR 1.82; 95% CI 1.09–3.04; p = 0.022) compared to those living in the least deprived areas. No statistically significant associations were observed for intermediate quintiles. A polynomial contrast test confirmed a significant linear trend across IMD levels (p = 0.010), indicating that the odds of polypharmacy increased progressively with greater area-level deprivation. This gradient was further illustrated by adjusted predicted probabilities, which rose from 18.3% (95% CI 15.3–21.3%) in the least deprived quintile to 24.6% (95% CI 20.1–29.2%) in the most deprived (p < 0.001).

Conclusion

Socioeconomic deprivation is independently associated with polypharmacy, even after adjusting for multimorbidity and other confounders, highlighting persistent health inequalities within England’s healthcare system. Targeted strategies, including regular medication reviews and enhanced access to care in deprived communities, may help mitigate risks and promote equity in prescribing practices.