Skip to main content

Table 5 Sample size required for potential future cross-over studies: number of pairs required based on the data observed

From: Comparing mixed oil to soybean oil lipid emulsion in patients on home parenteral nutrition: a pilot prospective double-blind, crossover, randomized trial

Power

80%

85%

90%

ALT

72

83

97

ALP

402

460

536

CRP

27

30

36

WBC

3

3

4

  1. The parameters used in this calculation are all from the study results (Table 2), the calculations are based on a two-sided test at a 5% significance level and considering a 43% drop-out rate
  2. ALP alkaline phosphatase, ALT alanine transaminase, CRP C-reactive protein, WBC white blood cells
Back to article page

Pilot and Feasibility Studies

ISSN: 2055-5784