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Table 3 Multiple linear regression for the ΔSTSS scores of all subjects. N = 305 (independent variables: age, sex, ΔDIF, ΔDDF, and ΔEOT)

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

Independent variables Dependent variables (ΔSTSS)
ΔTotal ΔDIB ΔOA ΔLHM
Mean ± SD 3.03 ± 9.09 0.93 ± 4.83 0.69 ± 4.57 1.16 ± 4.62
Model summary (r2) 0.142 0.121 0.043 0.036
F value 9.860 8.235 2.662 2.241
Durbin-Watson 1.923 2.097 1.850 1.946
Cook’s distance 0.107 0.076 0.90 0.128
p value  < 0.001  < 0.001 0.023 0.05
Constant 5.521 1.504 1.600 1.734
Age (mean ± SD: 53.69 ± 15.05; VIF: 1.020)
r -0.101 0.003 -0.083 -0.071
B -0.055 0.004 -0.023 -0.022
p value 0.093 0.820 0.195 0.219
Sex (male/female: 30/275; VIF: 1.010)
r 0.011 -0.032 0.014 0.023
B -0.002 -0.549 0.085 0.270
p value 0.999 0.535 0.922 0.760
ΔDIF (mean ± SD: 0.61 ± 4.23; VIF: 1.379)
r 0.364*** 0.342*** 0.189** 0.161**
B 0.731 0.368 0.198 0.171
p value  < 0.001  < 0.001 0.006 0.019
ΔDDF (mean ± SD: 0.26 ± 3.14; VIF: 1.361)
r 0.213*** 0.211*** 0.105 0.070
B 0.110 0.077 0.021 -0.028
p value 0.545 0.428 0.827 0.773
ΔEOT (mean ± SD: -0.23 ± 3.52; VIF: 1.035)
r 0.058 0.027 -0.003 0.091
B 0.025 -0.40 -0.034 0.099
p value 0.859 0.595 0.652 0.193
ΔTAS-20 total r 0. 311*** 0. 285*** 0. 157** 0. 146*
  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