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. Author manuscript; available in PMC: 2018 Feb 1.
Published in final edited form as: J Evid Based Med. 2017 Feb;10(1):26–36. doi: 10.1111/jebm.12236

FIGURE 2.

FIGURE 2

Forest plot for changes in overall sleep quality. The black horizontal lines represent the 95% confidence intervals while the squares represent the point estimate. The first two black diamonds represent the overall point estimate and 95% confidence intervals from each meta-analysis, while the third black diamond represents the overall pooled point estimate and 95% confidence intervals from all individual studies included in each meta-analysis. All analyses are based on the random-effects model