Prevalence of Major Depression Among Immigrants in Santiago, Chile

Status Completed

Clinical Trial Summary

The general aim of this study is to explore the prevalence of major depressive disorder and the use of mental health services in the immigrant populations in the Metropolitan Region of Santiago, Chile.

The hypotheses are:

1. A healthy immigrant effect will be observed in the studied population by which their prevalence of major depressive disorder will be lower than the prevalence in the general Chilean population.

2. A significant association will be observed between the loss of socio-economic position after migration and a greater probability of major depressive disorder.

3. A significant association will be observed between the report of victimization experience(s) in the previous year and a greater probability of major depressive disorder.

4. A significant association will be observed between financial difficulties and a greater probability of major depressive disorder.

The sampling framework of the Chilean National Institute of Statistics (INE) from the 2016 Census will be used for the purpose of this research. The sampling units are as follows:

1. Primary sampling units (PSUs): conglomerates or groups of adjoining houses, organized in spatial blocks (200 households on average)

2. Secondary sampling units (SSUs): individual households within each of the conglomerates selected in the first stage

3. Final sampling units: persons meeting the study's inclusion criteria Multi-stage random probability sampling involving a 3-stage sampling design will be used - first, the sampling of the primary sampling units (PSUs); second, the sampling of households within the selected PSUs and finally, the random sampling of a household member.

Participants (n=1,100) will then take part in a 45-minute interview. This interview will be a household survey using the modular version of the Composite International Diagnostic Interview (WHO-CIDI) looking at exploring a broad spectrum of factors traditionally associated with increased risk of affective disorders:

1. Sociodemographics

2. Finance

3. Variation in socioeconomic position

4. Experience of victimization

5. Discrimination

6. Experience of childhood adversity

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT04114565
Study type	Observational
Source	Pontificia Universidad Catolica de Chile
Contact
Status	Completed
Phase
Start date	July 29, 2019
Completion date	June 30, 2020

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Prevalence of Major Depression Among Immigrants in Santiago, Chile — STRING

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms