Como é o cronograma de planejamento para um MBS? Até onde você deve começar a planejar?

  • O planejamento deve começar sobre 6-7 meses antes da data em que desejamos começar a coleta de dados.
  • A coleta de dados deve ocorrer durante ou logo após a estação chuvosa em cada área, como a acessibilidade permite, recognizing unpredictable nature of rains.
  • Allow 8 weeks for data collection (especially if a national survey)
  • Allow 3 months after data collection for data entry, limpeza, e redação do relatório preliminar.
  • Overall timeline = approximately 10-12 months.
  • See the timeline we shared along with the MBS guidelines (Excel file) for more details.

How do you determine the appropriate sampling strategy (the level of granularity needed)?

  • This is discussed and decided on with the NMCP, PMEs, and BA, and will focus on the utility of the data (ie, at what level will detecting differences be useful to inform SBC strategies?)
  • For a national survey, regional representativeness is recommended (grouping ofgeopolitical areas of a country into a handful of regions/zones)
  • Grouping most likely would be based on malaria transmission zones, but can also consider cultural groups, availability of malaria services, urban/rural considerations.
  • Guidance on this is further detailed in the MBS Implementation Guidelines
  • Once the level of granularity is decided, the sample size calculations will be based on the demographic structure of the zones and estimates of key MBS indicators. See the Guidelines for further details.