Figure 2From: On the threshold - evaluation of variability in effects of acupuncture in a gender perspectiveContingency tables of paired EST assessments in a) healthy women ( n = 22) and b) healthy men ( n = 21), before EA, X, and after EA, Y. Freq = Frequency of recorded PM values, marginal frequencies, before EA and after EA; CF = Cumulative frequency of the marginal frequencies before and after EA (C(X)i; C(Y)i); CRF = Cumulative relative frequencies.Back to article page