Skip to main content

Table 6 Summary statistics to perform a one-sample t-test based on differences per cycle with the patient by treatment interaction removed from the variance estimate

From: The analysis of continuous data from n-of-1 trials using paired cycles: a simple tutorial

Statistic

Value

Explanation

n

33

Number of cycles

Mean

194.55 mL

Mean of the 33 cycles

Variance

24893 mL2

Sample variance of the 33 cycles

SD

157.8 mL

Standard deviation = √variance

SE

27.47 mL

Standard error = SD/√n

DF

21

Degrees of freedom = n-1-11

t

7.08

t-statistic =194.55 mL/27.47 mL

P-value

< 0.001

Probability under H0 a t-statistic with 21 DF will be ≥ 7.08 or ≤ − 7.08