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Table 2 The required number of samples as a function of effect size e and desired confidence

From: A multicenter study investigating the molecular fingerprint of psychological resilience in breast cancer patients: study protocol of the SCAN-B resilience study

Effect size

Confidence

No. of required samples for 80% power

0.70

0.95

64

0.70

0.99

95

0.75

0.95

40

0.75

0.99

60