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Table 2 Estimation of power in different scenarios

From: Cooperation between geriatricians and general practitioners for improved pharmacotherapy in home-dwelling elderly people receiving polypharmacy – the COOP Study: study protocol for a cluster randomised controlled trial

Δ

SD

r

Power %

0.035

0.08

1

59

0.035

0.08

0

87

0.035

0.07

1

71

0.035

0.07

0

94

0.025

0.07

1

43

0.025

0.07

0

71

  1. Δ change in 15D HRQoL index score, SD standard deviation of change over time in 15D score, R correlation between patients within each cluster
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Trials

ISSN: 1745-6215