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. Author manuscript; available in PMC: 2015 Mar 11.
Published in final edited form as: J Am Geriatr Soc. 2014 Dec;62(12):2319–2326. doi: 10.1111/jgs.13158

Figure 2. Change in total sleep quality by study arm.

Figure 2

There was a significant difference in change in total sleep quality between study arms (p=.0005), such that the stretching+educational DVD arm had significantly greater improvement in overall sleep quality than the other three arms (all p<.05, corrected for multiple comparisons using Holm-Bonferroni). Direction of sleep changes scores reversed so that positive change reflects improvement. Standard error bars are shown.