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Table 1 Sample size estimation for practice level analysis

From: A cluster randomised stepped wedge trial to evaluate the effectiveness of a multifaceted information technology-based intervention in reducing high-risk prescribing of non-steroidal anti-inflammatory drugs and antiplatelets in primary medical care: The DQIP study protocol

Standard Deviation

Difference 10% to 8%

Effect size

Number of practices

4.0%

2.0%

0.500

34

6.0%

2.0%

0.333

73

7.0%

2.0%

0.286

96

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Implementation Science

ISSN: 1748-5908