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Figure 3 | BMC Medical Research Methodology

Figure 3

From: Personalized contact strategies and predictors of time to survey completion: analysis of two sequential randomized trials

Figure 3

Estimated proportions of participants remaining to be contacted over time. These 3 panels display the survival function for time to survey completion since randomization for the mail- and telephone-based randomized trials. Panel A displays the overall survival function for all participants participating in the trials. Panels B and C display the survival function for the mail and telephone randomized trials, respectively.

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BMC Medical Research Methodology

ISSN: 1471-2288

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