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Awareness, Willingness, and Concerns about Clinical Trial Participation among Iraqi Patients: A Cross-Sectional Study Cover

Awareness, Willingness, and Concerns about Clinical Trial Participation among Iraqi Patients: A Cross-Sectional Study

Open Access
|Mar 2026

Figures & Tables

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Table 1

Baseline characteristics of survey respondents.

BASELINE CHARACTERISTICNUMBERPERCENTAGE
Age (Mean ± SD)41.68 ± 16.19
Female37960.1
Education*
No education9114.4
Primary19130.3
Intermediate10817.1
High school11618.4
Bachelor11418.1
Master degree71.1
PhD30.5

[i] *One patient had missing data regarding the education level.

Figure 1

Awareness and insights of respondents towards clinical trials. Participants’ awareness of the term ‘clinical trial’ and prior experience with clinical trial participation, illustrating the proportion of participants who had previously heard of the term and those who had ever participated in a clinical trial. Insights regarding clinical trials and future willingness to participate also were reported.

Figure 2

Motivators for participation in clinical trials. Self-reported motivators to participate in clinical trials reported mainly as help in advancing science and helping other patients.

Figure 3

Barriers for participation in clinical trials. Self-reported barriers for participating in clinical trials are safety concerns and family commitments.

Figure 4

Willingness to participate in clinical trials according to respondents’ characteristics. Univariate analysis showed that main determinants of willingness to participate in future clinical trials are education and awareness of the term ‘clinical trials.’

Figure 5

Willingness to participate in clinical trials according to prior trial participation and respondents concerns.

Table 2

Multivariable logistic regression for willingness to participate in clinical trials*.

PREDICTORADJUSTED OR [EXP(B)]95% CIP-VALUE
Age > = 50 Years0.7760.475–1.2660.310
Female (vs. male)1.3890.883–2.1840.155
Higher education (college/postgraduate vs. below college)2.0571.150–3.6820.015
Aware of the term ‘clinical trial’ (Yes vs. No)0.9230.432–1.9750.837
Prior clinical trial participation (Yes vs. No)0.7330.082–6.5580.781
Has concerns regarding clinical trials (Yes vs. No/Don’t know)0.4170.266–0.656<0.001
Willing to participate in procedural trials (Yes vs. No/Don’t know)5.1043.079–8.459<0.001
Willing to participate in educational/telemedicine/digital trials (Yes vs. No/Don’t know)5.1042.898–8.989<0.001
Willing if drug safety is confirmed (Yes vs. No/Don’t know)12.3865.279–29.060<0.001
Willing if drug safety is unknown (Yes vs. No/Don’t know)2.6861.024–7.0450.045

[i] *Model performance: χ²(10) = 334.282, p < 0.001; Nagelkerke R² = 0.562; overall classification accuracy = 79.2%.

Figure 6

Patient-centered strategies and expected benefits to improve clinical trial participation in LMICs: improving patient-centered trial recruitment strategies in LMICs can enhance the generalizability, equity, and real-world relevance of clinical research evidence.

DOI: https://doi.org/10.5334/gh.1536 | Journal eISSN: 2211-8179
Language: English
Submitted on: Oct 6, 2025
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Accepted on: Feb 23, 2026
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Published on: Mar 23, 2026
Published by: Ubiquity Press
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2026 Zainab Atiyah Dakhil, Noor Ali Hasan, Sarah K. Hassan, Ridha S. Nazzal, Ahmed Sermed Al Sakini, Mohammed Saad Qasim, Mohammed Qays, Mohammed Dheyaa Marsool Marsool, Hasan Ali Farhan, Jose Leal, Michele Peters, published by Ubiquity Press
This work is licensed under the Creative Commons Attribution 4.0 License.