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. Author manuscript; available in PMC: 2016 Jun 1.
Published in final edited form as: J Pain. 2015 Mar 20;16(6):537–548. doi: 10.1016/j.jpain.2015.03.001

Table 3.

Results of the Shapiro-Wilk and Kolmogorov-Smirnov test performed on the transformed variables from the Haifa studies.

Cohort #1 (n=40) #2 (n=48) #3 (n=62) #4 (n=91) #5 (n=105) #6 (n=109) #7 (n=193) All combined (n=648)
LOG Threshold
 Skewness, Kurtosis −0.71, −0.01 −0.12, −0.01 −0.38, 0.818 −0.35, 0.20 −0.23, 0.11 0.15, 0.19 0.07, 1.44 −0.8, 0.486
 SW test (P-value) P=0.013 P=0.292 P=0.029 P=0.100 P=0.110 P=0.122 P<0.001 P<0.001
 KS test (P-value) P=0.028 P=0.200 P=0.004 P=0.038 P=0.020 P=0.010 P<0.001 P<0.001
SqR Threshold
 Skewness, Kurtosis −0.37, −0.58 1.07, 1.95 0.75, 1.92 0.6, 0.56 0.84, 1.24 1.32, 2.36 1.52, 4.33 1.2, 2.73
 SW test (P-value) P=0.286 P=0.005 P=0.009 P=0.018 P=0.001 P<0.001 P<0.001 P<0.001
 KS test (P-value) P=0.200 P=0.015 P=0.003 P=0.046 P=0.007 P<0.001 P<0.001 P<0.001
LOG Tolerance
 Skewness, Kurtosis 0.181, −0.566 0.749, 0.182 0.96, 1.07 0.07, −0.82 0.97, −0.84 0.57, 0.79 0.42, 0.67 0.347, −0.1
 SW test (P-value) P=0.066 P=0.006 P=0.001 P=0.102 P=0.003 P=0.001 P<0.001 P<0.001
 KS test (P-value) P=0.130 P=0.072 P=0.079 P=0.200 P=0.055 P=0.003 P=0.020 P<0.001
SqR Tolerance
 Skewness, Kurtosis 1.03, −0.12 1.568, 1.71 2.14, 4.72 0.75, −0.26 0.78, −0.49 1.96, 3.8 1.70, 3.42 1.33, 1.18
 SW test (P-value) P<0.001 P<0.001 P<0.001 P<0.001 P<0.001 P<0.001 P<0.001 P<0.001
 KS test (P-value) P<0.001 P<0.001 P<0.001 P=0.004 P<0.001 P<0.001 P<0.001 P<0.001
LOG Intensity
 Skewness, Kurtosis −2.79, 10.05 −3.33, 14.75 −1.44, 2.96 −1.68, 6.10 −3.13, 11.27 −1.73, 4.95 −3.05, 11.52 −3.29, 16.24
 SW test (P-value) P<0.001 P<0.001 P<0.001 P<0.001 P<0.001 P<0.001 P<0.001 P<0.001
 KS test (P-value) P<0.001 P<0.001 P<0.001 P=0.065 P<0.001 P<0.001 P<0.001 P<0.001
SqR Intensity
 Skewness, Kurtosis −1.85, 3.78 −2.79, 10.62 −1.11, 1.45 −0.92, 1.96 −2.59, 7.74 −1.13, 2.07 −1.96, 4.41 −1.93, 5.3
 SW test (P-value) P<0.001 P<0.001 P<0.001 P=0.001 P<0.001 P<0.001 P<0.001 P<0.001
 KS test (P-value) P<0.001 P<0.001 P<0.001 P=0.200 P<0.001 P=0.005 P<0.001 P<0.001

SW = Shapiro-Wilk test; KS = Kolmogorov-Smirnov test (KS).

Bolding of p-values indicates results originating from a normal distribution.