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. Author manuscript; available in PMC: 2021 Jul 1.
Published in final edited form as: Surg Endosc. 2019 Sep 3;34(7):3135–3144. doi: 10.1007/s00464-019-07081-6

Table 1.

CUSUM variables

Variable Value
Success score 280.8
P0 0.05
p1 = 2 × p0 0.10
α 0.05
β 0.20
P = ln(p1/p0) 0.69
Q = ln[(1 − p0)/(l − p1)] 0.05
s = Q/(P + Q) 0.07
1 − s 0.93
a = ln[(1 − β)/α] 2.77
b = ln[(1 − α)/β] 1.56
h0 = −b/(P + Q) −2.09
h1 = a/(P + Q) 3.71