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. Author manuscript; available in PMC: 2019 Apr 1.
Published in final edited form as: Surg Endosc. 2017 Oct 19;32(4):1990–2002. doi: 10.1007/s00464-017-5895-0

Table 2.

CUSUM criteria score and parameters

Variable Values
FLS PC intermediate proficiency score 56
FLS PC proficiency score 72
VBLaST PC intermediate proficiency score 56
VBLaST PC proficiency score 72
p0 0.05
p1 = 2 × p0 0.10
α 0.05
B 0.20
P = ln(p1/p0) 0.69
Q = ln[(1 − p0)/(1 − 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