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Table 4 Sample size calculations for Aim 2a (comparison of phone versus videoconference services)

From: The ENGAGE study: a 3-arm randomized hybrid type 1 effectiveness and implementation study of an in-home, collaborative PCP model of remote telegenetic services to increase uptake of cancer genetic services in childhood cancer survivors

Variable

Change scoresa (SD) of phone vs. videoconferencing

Number neededb

Knowledge

 + 5.7 (11.2) vs. + 18.6 (12.6)

22/arm

Cancer specific distressc

 + 3.6 (12.4) v. -2.6 (12.3)

95/arm

Depression

-0.2 (2.0) vs. -1.6 (2.0)

50/arm

  1. aBaseline to post genetic testing
  2. b85% Power, 1.67% alpha
  3. cintrusive subscale
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BMC Health Services Research

ISSN: 1472-6963

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