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. Author manuscript; available in PMC: 2015 Apr 17.
Published in final edited form as: J Adolesc Health. 2013 Dec 18;54(6):691–697. doi: 10.1016/j.jadohealth.2013.10.201

Figure 1.

Figure 1

Mean sleep duration per night, ages 13–32. Error bars represent 95% confidence intervals. Individuals contributed multiple observations over the four waves of the study.