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Introduction to Data Files
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Datasets are divided into sections, corresponding to sections in the questionnaire. |
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The variables that correspond to the questions are named following the convention of section and question numbers. |
| MHAS 2001: |
At the beginning of each section dataset, there appears the variable UNHHID, which is a five-digit unique household identification number, while the variable PS3 is the code that refers to the individual within the household (1=sampled person, 2=spouse). These variables are necessary to merge the various files from MHAS 2001 from the questionnaire. |
| MHAS 2003: |
At the beginning of each section dataset, there appears the variables CUNICAH, which is a five-digit household identification number, and ACTHOG, which reflects modifications in the couple-composition called ' Updated Household 2001'. Both of them form the unique household identifier. ENT2 is the code that refers to the individual within the household (1=sampled person, 2=spouse, 3=new spouse of respondent 2003, 4=new spouse of spouse 2003). |
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The variables UNHHID and PS3 from MHAS 2001 and CUNICAH, ACTHOG and ENT2 from MHAS 2003 are necessary to merge files from MHAS 2001 with MHAS 2003 from the questionnaires. |
| MHAS 2001: |
At the beginning of each database, there also are several constructed variables that simplify analysis. Among them are EDAD (age), SEXO (sex), ESCOLA (years of schooling), and MURB (community of residence has at least 100,000 residents). Additionally, sampling weights have been included at the top of each file. Most users will want to work with FAC_PER if working with individual-level variables and FAC_VIV if working with household-level data such as housing, household income, and assets. |
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Sampling weights for MHAS 2001 and MHAS 2003 are also included in the Master Follow-up File. |
| MHAS 2001: |
The variable NUM_FIELD indicates the number of interviews conducted in the home (1 or 2). The variable ENT-TIP identifies the type of interview that was conducted (direct interview or proxy), and if it was the first or second interview conducted in the household. |
| MHAS 2003: |
The variable TIPENT identifies the type of interview that was conducted (direct, proxy, or next of kin interview), and if it was the first, second or third interview conducted in the household. The variables CUNICAH, ACTHOG and TIPENT are necessary to merge the various files from MHAS 2003 from the questionnaire. |
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Data
Data Registration is required to download the databases, which appear at the bottom of this screen after you make your selections. Click here to register or login.
User Agreement
Prior to accessing MHAS public data, we request that the user register (free of charge) and agree to the following terms:
• User will not attempt to identify subjects/study participants
• User will not distribute his/her MHAS username and password
• User will not transfer MHAS public release data to a third party(-ies), with the exception of staff or students for whom
said user is directly responsible
• User must properly credit MHAS for the use of any data and the link to the public data must be included as follows:
In Text
The MHAS (Mexican Health and Aging Study) is partly sponsored by the National Institutes of Health/National Institute
on Aging (grant number NIH R01AG018016) and the INEGI in Mexico. Data files and documentation are public use
and available at www.MHASweb.org.
In References
MHAS, Mexican Health and Aging Study, ([insert year]). Data Files and Documentation (public use): Mexican Health and
Aging Study, ([insert Product Name]). Retrieved from www.MHASweb.org on [insert date].
Select Formats:
† Coming Soon
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Constructed / Imputed
Please refer to the “Imputation of Economic Variables” document available in the Documentation & Questionnaire section.
Select Formats:
† Coming Soon
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Description
Although most of the MHAS data is unrestricted and available through this website to any registered user, other MHAS datasets are restricted, and are available only under specific contractual conditions. The restricted datasets are created by the MHAS team to answer specific research questions. The team considers the feasibility of the linkage, the importance of the research questions that can be answered, and the willingness to have the linked files available to all users. The MHAS has created the following linked files:
| Community-level characteristics |
| MHAS 2001 linkage with community services data (categorical variables) |
| MHAS 2001 linkage with community services data (numerical variables) |
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| Death count by cause, 1998-2011 |
| MHAS 2001 linkage with number of deaths by cause at municipality and community level: 1998-2011 |
| MHAS 2003 linkage with number of deaths by cause at municipality and community level: 1998-2011 |
| MHAS 2012 linkage with number of deaths by cause at municipality and community level: 1998-2011 |
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| Violent and Non-Violent Death Counts, 1998-2011 |
| MHAS 2001 linkage with number and rates of violent and non-violent deaths, 1998-2011 |
| MHAS 2003 linkage with number and rates of violent and non-violent deaths, 1998-2011 |
| MHAS 2012 linkage with number and rates of violent and non-violent deaths, 1998-2011 |
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The following figure describes the process to obtain the restricted MHAS data.
For more information on the available files and the process to access the restricted data please download the “MHAS Restricted-Use Files” descriptive document available here.
To download the forms needed to request access to the restricted data please click here.
©2012 University of Texas Medical Branch
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