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Cohort Acronym
PREHCO Project

Cohort type
General population-based cohort


Participant type
No diagnosis

Recruitment Period 2002-2003 
Sample size at start or planned sample size if still recruiting 4291  
Estimated Current Sample Size  
Age at Recruitment >60   
Gender Male and Female 

The Puerto Rican Elderly: Health Conditions (PREHCO) study investigates issues affecting the elderly (individuals over 60 years of age) population in Puerto Rico: health status, housing arrangements, functional status, transfers, labor history, migration, income, childhood characteristics, health insurance, use of health services, marital history, mistreat, sexuality, etc. It is an island-wide, longitudinal sample survey of target individuals and their spouses with two waves of data collection: 2002-2003 and 2006-2007.

In the first phase of the PREHCO project, 4,291 elderly persons 60 years or older and 1,442 spouses were interviewed (1,042 of the latter being 60 years or older). A second wave of the project (2006-2007) converted PREHCO in a longitudinal study. In the second wave, those same participants were asked to do a follow-up survey, in which 3,891 target interviews and 1,260 spouse interviews were completed. The deceased and institutionalized participants were also interviewed using a proxy.

Last Update 21/09/2017

Country USA 
Contact details
Institution name University of Puerto Rico 
Principal Investiator (PI) Professor Aberto Palloni, Professor Ana Luisa D'vila and Professor Melba Sanchez-Ayendez 
Contact email PI email: [email protected]  
Contact phone number Tel no: (608) 262-2182 
Address Samuel Preston Professor of Sociology, Emeritus
4434 Sewell Social Sciences 
Funders (Core support) United States Department of Health and Human Services, National Institutes of Health and National Institute on Aging 

Variables Collected

Brain related measures: Cognitive function, Mental health, Neurological
Funtional rating: Caregiver, Individual physiological, Individual psychological
Anthropometric: Height, Hip circumference, Waist circumference, Weight
Physical: Cardiovascular, Hearing and Vision, Musculoskeletal, Reproductive, Respiratory
Biological samples: N/A
Genotyping: N/A
Brain imaging: N/A
Brain banking: N/A
Lifestyle: Alcohol, Dietary habits, Physical activity, Smoking
Socio-economic: Education, Ethnic group, Family circumstances, Housing and accommodation, Income and finances, Marital status, Occupation and employment, Unpaid care
Health service utilisation: N/A
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