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March 1, 2026Health and Development Journal

Illness Anxiety Disorder Among Adults in the General Population in Iran: Findings from a Population-Based Survey

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Key result

Illness anxiety disorder affects ~31% of adults aged 18 to 50.

  • 95% CI 28.7-35.2
  • P=0.06

Why the study?

Patients with illness anxiety disorder frequently seek medical care, imposing financial costs and facing social and occupational disablement, prompting evaluation of the disorder and associated factors in southeast Iran.

Population

630 adults aged 18-50 years in Kerman city, southeast Iran

Design

Cross-sectional study using multi-stage random sampling

Authors

NNNaser NasiriUniversity of JiroftVNVida NikvarzKerman University of Medical SciencesMKMehrdad KhezriKerman University of Medical Sciences

Discussion

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Implication

Supports awareness programs in primary care; extends regional data and leaves causality plus sex differences open to longitudinal study.

Key Points

  • This study aims to evaluate the prevalence and associated factors of illness anxiety disorder among adults in Kerman city, Iran.
  • Conducted a cross-sectional survey
  • Recruited a multi-stage random sample of 630 adults aged 18-50
  • Assessed illness anxiety disorder using the Evans questionnaire
  • Analyzed data using Chi-square, t-test, ANOVA, and multivariable linear regression
  • Overall mean score of illness anxiety disorder was 26.2 (±10.2)
  • Prevalence of illness anxiety disorder was estimated at 31.4%
  • Female sex showed a trend towards higher illness anxiety disorder compared to males (beta 1.55, P=0.06)

Structured PICO

P
Population
630 adults aged 18-50 years in Kerman city, southeast Iran
O
Outcome
Illness anxiety disorder and associated factors assessed using the Evans illness anxiety disorder questionnairepatient reported

Nearly one-third of the general adult population in Kerman, Iran, exhibited some level of illness anxiety disorder, highlighting the need for awareness programs.

Cite This Study

Nasiri et al. (2025) studied this question. Illness anxiety disorder affected 31.4% (95% CI 28.7-35.2) of adults aged 18-50 in Kerman, Iran, with females more likely affected (beta 1.55, P=0.06).

synapsesocial.com/papers/69a3d7dfec16d51705d2e2e0https://doi.org/10.34172/jhad.1220
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Hypochondriacal Patients’ Appraisal of Health and Physical Risks2001 · 81 citations
  2. 2Illness Anxiety Disorder and Its Relationship with Social Health in the Elderly, Isfahan, Iran2022 · 3 citations
  3. 3Frequency of Hypochondria disorder in operating room personnel of educational hospitals of Guilan University of Medical Sciences2019 · 6 citations
  4. 4Hypochondriacal concerns in a community population2001 · 135 citations
  5. 5Clinical study of illness anxiety disorder in medical outpatients2017 · 22 citations