Differences between proportions were tested using the Chi-square test with Yates's correction or Fisher's exact test as appropriate (Epi Info, version 6; Centers for Disease Control and Prevention).
The 95% confidences Intervals were calculate using appropriate statistical software (Epi info versão 6.04®).
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"Editors at Science journals generally use author suggestions as reviewers only if they have independent info that the reviewer is appropriate and likely to give an unbiased review," according to a statement issued by the journal's editors).
An info copy should go to the appropriate DHS bureau.
Data were analyzed using Epi info 2000 version 12 or, when appropriate, by Fischer's Exact test, the Student's t-test or the z-test for comparison of proportions.
The significance of differences was assessed by one-way ANOVA test or Kruskall-Wallis, when appropriate, or by the exact test of Fisher, respectively (Epi-Info 6.04 software, Centers for Disease Control and Prevention, Atlanta, GA, US).
In the case of ignorance about the most appropriate choice, a manager would have no basis for this choice, so info-gap can only apply when we have a reasonable best guess.
The data were analysed using χ test and, where appropriate, Fisher's exact test to calculate all P-values related to the differences between groups with Epi Info 6 Statistical Analysis System Software (6.04b, 1997, Centers for Disease Control and Prevention, USA).
The Statistical package EPI INFO (version 6.0) was used to test differences (by the Fisher's exact test, Yates Chi Square Test, as appropriate).
