Why is the estimate needed? |
• To generate a broad estimate of the magnitude of the problem |
• To identify detailed causes, differentials and determinants |
• To identify differences in levels within a country |
• To permit cross-country comparisons |
• To enable regular monitoring of progress |
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What resources are available? |
• Existing data sources or data-collection opportunities, for example routine civil registration, large multi-purpose surveys |
• Human resources, for example technical skills to design a survey, or to manage, analyse and interpret data |
• Field budget, for example funds available for new data collection |
• Time available, for example estimate needed immediately, in 1–2 years time, or longer |