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Figure 6 | BMC Infectious Diseases

Figure 6

From: Comparison of three methods for ascertainment of contact information relevant to respiratory pathogen transmission in encounter networks

Figure 6

Correlation between Paper and PDA entries for each participant. Despite variable self report of the difficulty and timeliness of data entry using either paper or PDA, close correlation (0.68) was found between participants' recording of encounters by either means, indicating that both methods are relatively successful in capturing participants encounters (a). The Bland-Altman plot shows a systematic and significant underreporting using the electronic diary compared to paper (b). The horizontal rules show the mean difference (4.52 (0.28, 8.77), and the reference range for difference (-29.7 to 38.8).

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