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Figure 5 | Health and Quality of Life Outcomes

Figure 5

From: Sample size and power estimation for studies with health related quality of life outcomes: a comparison of four methods using the SF-36

Figure 5

Estimated power curves for the SF-36 Role Physical dimension to detect an Odds Ratio shift using general population data (females aged 16–45) based on α = 0.05 (two-sided) with 10,000 bootstrap replications Five category SF-36 Role Physical outcome (General population Females aged 16–45); n = 487, γ = (.06, .11, .17, .25, 1.0)

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