Validity of Expanded Program on Immunization Contact Method health behavior estimates in Mali.

Preventive Medicine Residency Program, Scientific Education and Professional Development Program Office, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
The Journal of Infectious Diseases (Impact Factor: 5.85). 03/2012; 205 Suppl 1:S112-9. DOI: 10.1093/infdis/jir797
Source: PubMed

ABSTRACT In the developing world, household surveys provide high-quality health behavior data integral to public health program management. The Expanded Program on Immunization Contact Method (EPI-CM) is a proposed, less resource-intensive method in which health center staff incorporate health behavior questions into routine vaccination activities. No systematic evaluation of EPI-CM validity has yet been conducted.
We used concurrent household survey and EPI-CM to collect data on 4 infant health behaviors in Mali at 2 time points (8 total comparisons). Studied health behaviors were bednet use, obtaining care for fever, obtaining care for a respiratory complaint, and using oral rehydration solution for diarrhea. Household survey and EPI-CM estimates were considered equivalent if a 95% confidence interval about the difference in estimated proportions fell within the interval (-.10, .10).
EPI-CM estimates were higher than household survey estimates for 7 of 8 unadjusted paired estimates; estimates of bednet use in 2009 met a priori equivalence criteria in a setting of high bednet use (90.5%). When we restricted household survey data to infants up-to-date on vaccinations, estimates for behaviors other than bednet use remained substantially different.
We were unable to demonstrate that EPI-CM, as implemented, consistently produces data comparable with household survey data.

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