Characterization of Chronic Pain in Elderly Population with Emphasis on Differences Between Gender
1 other identifier
observational
474
1 country
1
Brief Summary
Introduction: It is estimated that by 2025 there will be approximately 1.2 billion people above 60 years old. Global projections indicate that by 2050 there will be about 2 billion elders, 80% of them living in developing countries. Researches on the relationship between pain and aging are currently much valued within the health sciences, the ultimate goal being the provision of adequate pain control for the growing number of elders in society. Objectives: To characterize chronic pain in the elderly population and evaluate pain threshold to mechanical stimulation, with emphasis on gender differences. Methods: This study refers to a cross-sectional study to be conducted in convenience samples of a primary care unit (Geraldo Horacio de Paula Souza) that follows elders and the Department of Geriatrics of the university hospital of the School of Medicine of Universidade de São Paulo (Hospital das Clínicas). At least 200 participants of each gender, aged 65 or above, will be selected to participate. Chronic pain will be that lasting for six or more months (either continuous or recurrent, as recommended by the International Association For the Study of Pain). Participants will be searched about their demographic and socioeconomic backgrounds, and asked to answer the following questionnaires: the Mini Mental State Examination, a structured questionnaire for activities of daily living, a structured questionnaire for instrumental activities of daily living, Beck Anxiety Inventory, Geriatric Depression Scale, the five dimensions European Quality of Life assessment (EQ5D) and Brief Pain Inventory. Participants will also be evaluated regarding pain threshold to mechanical stimuli using algometer. Descriptive statistics of the sample will be displayed as means, medians, standard deviations and proportions. For testing for differences between males and females, a significance level of 5% will be used. Keywords: elderly, chronic pain, gender.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jul 2017
Typical duration for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 5, 2017
CompletedFirst Submitted
Initial submission to the registry
July 10, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 10, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
July 10, 2020
CompletedFirst Posted
Study publicly available on registry
March 4, 2025
CompletedMarch 4, 2025
July 1, 2017
2 years
July 10, 2017
February 27, 2025
Conditions
Outcome Measures
Primary Outcomes (3)
Sensitivity to pressure pain 5 minutes post recruitment
Pain evaluation throught algometer 5 minutes post recruitment
applied minutes 5 after recruitment of the subject.
Sensitivity to pressure pain 10 minutes post recruitment
Pain evaluation throught algometer 10 minutes post recruitment
applied minutes 10 after recruitment of the subject.
Sensitivity to pressure pain 15 minutes post recruitment
Pain evaluation throught algometer 15 minutes post recruitment
applied minutes 15 after recruitment of the subject.
Secondary Outcomes (1)
Mini Mental State Examination
applied in beginning of the interview
Study Arms (2)
Male
Male, patients
Female
Female patients
Interventions
Eligibility Criteria
Patient of the geriatrics clinic at the Central Institute (IC) of the Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP) or the Geraldo Horácio de Paula Souza School of Public Health Center of the University of São Paulo
You may qualify if:
- Patient of the geriatrics clinic at the Central Institute (IC) of the Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP) or the Geraldo Horácio de Paula Souza School of Public Health Center of the University of São Paulo
- Be over 65 years old
- Accept study participation
- Have read, understood, agreed and signed the TCLE
You may not qualify if:
- Cognitive difficulty in understanding and responding to research questions
- Do not accept participation in the study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Universidade de Sao Paulo
São Paulo, São Paulo, 01239-011, Brazil
Related Publications (5)
Valkenburg HA. Epidemiologic considerations of the geriatric population. Gerontology. 1988;34 Suppl 1:2-10. doi: 10.1159/000212980.
PMID: 3266492BACKGROUNDChesterton LS, Barlas P, Foster NE, Baxter DG, Wright CC. Gender differences in pressure pain threshold in healthy humans. Pain. 2003 Feb;101(3):259-266. doi: 10.1016/S0304-3959(02)00330-5.
PMID: 12583868BACKGROUNDRiley JL 3rd, Robinson ME, Wise EA, Myers CD, Fillingim RB. Sex differences in the perception of noxious experimental stimuli: a meta-analysis. Pain. 1998 Feb;74(2-3):181-7. doi: 10.1016/s0304-3959(97)00199-1.
PMID: 9520232BACKGROUNDBartley EJ, Fillingim RB. Sex differences in pain: a brief review of clinical and experimental findings. Br J Anaesth. 2013 Jul;111(1):52-8. doi: 10.1093/bja/aet127.
PMID: 23794645BACKGROUNDPeat G, Thomas E, Handy J, Croft P. Social networks and pain interference with daily activities in middle and old age. Pain. 2004 Dec;112(3):397-405. doi: 10.1016/j.pain.2004.09.029.
PMID: 15561396BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- CASE CONTROL
- Time Perspective
- CROSS SECTIONAL
- Target Duration
- 1 Day
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 10, 2017
First Posted
March 4, 2025
Study Start
July 5, 2017
Primary Completion
July 10, 2019
Study Completion
July 10, 2020
Last Updated
March 4, 2025
Record last verified: 2017-07
Data Sharing
- IPD Sharing
- Will not share