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1. Once downloaded the zip file from the ESDS, What are the documents I will have access to?
Three folders would be available after downloading the dataset:
- The first one contains questionnaires, variable dictionaries, file converting issues, fieldwork instructions, methodology documents and a description file. All these documents are available for all four countries.
- The second one contains the syntaxes files that created the outcomes variables for Round 1 and Round 2.
- The third folder contains the databases for all four countries of Niños del Milenio/Young Lives study: India (Andhra Pradesh), Peru and Vietnam.
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2. Where can I find the questionnaires in Spanish?.
The Spanish version of all questionnaires can be found at:
http://www.ninosdelmilenio.org/ing/basededatos_cuest.shtml
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3. Are the samples countries statistically representative of the population?
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For Peru, the sampling strategy was designed to ensure an equal distribution across the range of poverty excluding top 5%. More information on the sample frame can be found at:
http://www.younglives.org.uk/pdf/publication-section-pdfs/technical-notes-pdfs/TN03-PeruSample.pdf
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4. What types of output variables will you find in the dataset?
For all countries the outcome generated variables that can be found at the end of the datasets are: Z-scores for Height for age, Weight for Age, Weight for height and Body Mass Index.
For the case of Peru, you can also find the Wealth Index, which is an index used to rank the data according to the socieconomic status of each household.
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5. What type of methodology was used for the calculation of the Z-scores in both cohorts and rounds?
The World Health Organization (WHO) published a new methodology for the anthropometric measures in 2006 (http://www.who.int/childgrowth/software/en/).
For Round 2, this new methodology was used. However for round 1, the previous 1978 NCHS/WHO was used. Since the data provided includes both the date of birth and all anthropometric records, the z-scores can be calculated as needed.
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6. Can Young Lives personnel in Lima or Oxford provide advice to researchers
on how to analyze data?
YL has the surveys and data bases available to the public, plus all
publications, free of charge. However, we do not have the resources to
provide advice to researchers on data analysis. Having said this, we will use the questions posted to us to enhance the FAQ section.
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7. Should we send YL any publication or research report we produce?
Although it is not mandatory, we would like to hear of any publications that
have used YL data bases. Please send information to:
ninosdelmilenio@grade.org.pe
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