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Table 4 Multiple linear regression for the ΔTAS-20 scores of all subjects. N=305 (independent variables: age, sex, ΔDIB, ΔOA, and ΔLHM)

From: Effects of practicing yoga on alexisomia: an open-label trial

Independent variables Dependent variables (ΔTAS-20)
ΔTotal ΔDIF ΔDDF ΔEOT
Mean ± SD 0.58 ± 7.72 0.61 ± 4.23 0.26 ± 3.14 -0.23 ± 3.52
Model summary (r2) 0.100 0.139 0.049 0.018
F value 6.640 9.639 3.111 1.094
Durbin-Watson 2.092 2.096 2.087 2.033
Cook’s distance 0.060 0.078 0.090 0.136
p value  < 0.001  < 0.001 0.009 0.364
Constant -1.991 0.261 -0.838 -1.550
Age (mean ± SD: 53.69 ± 15.05; VIF: 1.020)
r 0.024 -0.033 0.007 0.090
B -0.055 -0.005 -0.023 0.022
p value 0.093 0.724 0.195 0.101
Sex (male/female: 30/275; VIF: 1.010)
r 0.009 0.004 0.031 -0.006
B 0.449 0.113 0.085 0.014
p value 0.753 0.883 0.922 0.984
ΔDIB (mean ± SD: 0.93 ± 4.83; VIF: 1.158)
r 0.285*** 0.342*** 0.211** 0.027
B 0.407 0.270 0.128 0.017
p value  < 0.001  < 0.001 0.001 0.710
ΔOA (mean ± SD: 0.69 ± 4.57; VIF: 1.166)
r 0.157** 0.189*** 0.105 -0.003
B 0.094 0.059 0.021 -0.010
p value 0.350 0.272 0.622 0.838
ΔLHM (mean ± SD: 1.16 ± 4.62; VIF: 1.017)
r 0.146** 0.161** 0.070 0.091
B 0.019 0.116 0.034 0.074
p value 0.030 0.020 0.379 0.095
ΔSTSS total r 0. 311*** 0. 364*** 0. 213** 0. 058
  1. Δ: differences between scores before and after 3 months of yoga practice; *p < 0.05; **p < 0.01; ***p < 0.001 for correlation coefficients (r) with the Pearson’s correlation, DDF Difficulty in describing feelings, DIB Difficulty in identifying bodily feelings, DIF Difficulty in identifying feelings, EOT Externally-oriented thinking, LHM Lack of health management based on bodily feelings, OA Overadaptation, p value Multiple linear regression with the enter method, SD Standard deviation, STSS The Shitsu-taikan-sho Scale, TAS-20 The 20-item Toronto Alexithymia Scale, VIF Variance inflation factor