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. Author manuscript; available in PMC: 2011 Apr 1.
Published in final edited form as: Ann Epidemiol. 2010 Jan 13;20(4):308–317. doi: 10.1016/j.annepidem.2009.11.003

Figure 2.

Figure 2

Proportion of Participants Who Formed a New Partnerships in the Past Year Among Heterosexual Seattle Adults Age 18-39 in a 2003-2004 Random Digit Dialing (RDD) Survey; N=1,194 enrolled, 829 participants included in observed-plus-imputed analyses, 877 participants included in observed-only analyses. Key: Men, observed-plus-imputed data: solid; Men, observed-only data: vertical lines; Women, observed-plus-imputed data: diagonal lines; Women, observed-only data: horizontal lines. Observed-only data include partnerships explicitly described in the survey, while observed-plus-imputed data also include partnerships whose start dates and durations were estimated using data from other questions, imputation, and durations sampled from partnerships with known durations. Error bars reflect 95% confidence intervals.