Male Sexual Function and Sexual Quality of Life in Polygamous Versus Monogamous Marriages

August 21, 2026 updated by: Abul-fotouh Ahmed, Al-Azhar University

Sexual Function and Sexual Quality of Life Among Egyptian Men in Polygamous and Monogamous Marriages: A Web-Based Comparative Cross-Sectional Survey

This web-based comparative cross-sectional survey will assess sexual function, sexual quality of life, psychological status, and marital satisfaction among Egyptian men in monogamous and polygamous marriages. Eligible participants will be married Egyptian men aged 18 years or older who provide electronic informed consent and complete an anonymous Arabic-language questionnaire. The primary outcome will be sexual function measured using the Sexual Health Inventory for Men (SHIM/IIEF-5). Secondary outcomes will include Sexual Quality of Life-Male (SQOL-M), Depression Anxiety Stress Scales-21 (DASS-21), marital satisfaction, and sociodemographic and clinical predictors of impaired sexual function. Data will be analyzed using descriptive, comparative, correlation, and multivariable regression methods.

Study Overview

Detailed Description

Sexual function and sexual quality of life are influenced by biological, psychological, social, and relationship-related factors. Marital structure may be associated with differences in sexual function, sexual satisfaction, psychological distress, and quality of life; however, evidence among Egyptian men is limited.

This study will use an anonymous Arabic-language web-based questionnaire to compare married Egyptian men in monogamous and polygamous marriages. Participants will be recruited from different Egyptian governorates through online dissemination of the survey. Before completing the questionnaire, participants will review the study information sheet and provide electronic informed consent.

The questionnaire will collect sociodemographic, clinical, lifestyle, sexual, psychological, and relationship-related information. Sexual function will be assessed using the Arabic version of the Sexual Health Inventory for Men/Sexual Health Inventory for Men-5 (SHIM/IIEF-5). Sexual quality of life will be assessed using the Sexual Quality of Life-Male questionnaire. Depression, anxiety, and stress will be assessed using the Depression Anxiety Stress Scales-21. Marital satisfaction and relationship satisfaction will be assessed using predefined Likert-type questions.

The monogamous group will include men currently married to one wife. The polygamous group will include men currently married to two or more wives. Participants will be analyzed according to marital structure, and additional descriptive analyses may be performed according to the number of wives among polygamous participants.

The primary analysis will compare SHIM scores and the proportion of participants with impaired sexual function between the two marital groups. Secondary analyses will compare sexual quality of life, psychological status, marital satisfaction, and other clinical and sociodemographic variables. Multivariable regression models will be used to assess whether marital structure is independently associated with impaired sexual function or poor sexual quality of life after adjustment for relevant confounding factors.

Study Type

Observational

Enrollment (Estimated)

1820

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

      • Cairo, Egypt
        • Recruiting
        • Department of Urology, Al-Hussein and Sayed Galal University Hospitals, Al-Azhar University
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

N/A

Sampling Method

Non-Probability Sample

Study Population

The study population will consist of Egyptian men aged 18 years or older who are currently married and living in Egypt or residing in different Egyptian governorates. Participants will be classified into two observational groups according to their existing marital structure: men married to one wife and men married to two or more wives. Participants will be recruited through an anonymous Arabic-language web-based questionnaire. The study team will not assign or modify marital status or any other exposure.

Description

Inclusion Criteria:

  • Egyptian males aged 18 years or older.
  • Currently married at the time of questionnaire completion.
  • Currently in either a monogamous marriage, defined as marriage to one wife, or a polygamous marriage, defined as marriage to two or more wives.
  • Able to read and understand Arabic.
  • Willing to complete the anonymous online questionnaire.
  • Able to provide electronic informed consent before accessing the questionnaire

Exclusion Criteria:

  • Unmarried, divorced, or widowed individuals.
  • Individuals who do not provide electronic informed consent.
  • Incomplete questionnaire responses that do not contain the primary outcome measure.
  • Duplicate or clearly invalid questionnaire responses.
  • Self-reported major psychiatric illness or neurological disease that substantially affects sexual function.
  • Participants receiving active treatment that substantially affects sexual function, unless the treatment can be documented and appropriately considered in the statistical analysis.
  • Individuals unable to read or understand Arabic.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Monogamous marriage
Egyptian men aged 18 years or older who are currently married to one wife and complete the anonymous online questionnaire.
Existing marital structure consisting of one current wife at the time of questionnaire completion. This is an observational exposure and is not assigned, modified, or administered by the study team. Participants in this exposure group will complete the same anonymous Arabic-language questionnaire as participants in the polygamous-marriage group.
Polygamous marriage
Egyptian men aged 18 years or older who are currently married to two or more wives and complete the anonymous online questionnaire.
Existing marital structure consisting of two or more current wives at the time of questionnaire completion. This is an observational exposure and is not assigned, modified, or administered by the study team. Participants in this exposure group will complete the same anonymous Arabic-language questionnaire as participants in the monogamous-marriage group.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Sexual function score measured by the Sexual Health Inventory for Men
Time Frame: Baseline (single assessment at questionnaire completion)
Sexual function will be assessed using the five-item Sexual Health Inventory for Men, also known as the International Index of Erectile Function-5 (SHIM/IIEF-5). Scores range from 5 to 25, with higher scores indicating better erectile function. The mean or median SHIM score will be compared between men in monogamous and polygamous marriages.
Baseline (single assessment at questionnaire completion)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Proportion of participants with impaired sexual function
Time Frame: Baseline (single assessment at questionnaire completion)
Impaired sexual function will be defined as a SHIM/IIEF-5 score of 21 or less. The outcome will be reported as the number and percentage of participants with impaired sexual function in each marital-structure group.
Baseline (single assessment at questionnaire completion)
Sexual Quality of Life-Male questionnaire score
Time Frame: Baseline (single assessment at questionnaire completion)
Sexual quality of life will be assessed using the Sexual Quality of Life-Male questionnaire. The total score will be reported according to the scoring system of the validated questionnaire, with higher scores indicating better sexual quality of life if applicable to the selected version. Scores will be compared between monogamous and polygamous marriage groups.
Baseline (single assessment at questionnaire completion)
Relationship satisfaction score
Time Frame: Baseline (single assessment at questionnaire completion)
Relationship satisfaction will be assessed using predefined Likert-type questions regarding satisfaction with the marital relationship. Scores will be summarized and compared between monogamous and polygamous marriage groups, with higher scores indicating greater satisfaction.
Baseline (single assessment at questionnaire completion)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Abul-fotouh Ahmed, MD, Department of Urology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

August 20, 2026

Primary Completion (Estimated)

May 1, 2027

Study Completion (Estimated)

August 1, 2027

Study Registration Dates

First Submitted

August 19, 2026

First Submitted That Met QC Criteria

August 21, 2026

First Posted (Actual)

August 25, 2026

Study Record Updates

Last Update Posted (Actual)

August 25, 2026

Last Update Submitted That Met QC Criteria

August 21, 2026

Last Verified

August 1, 2026

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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