Research Article

Preliminary Evidence That Yoga Practice Progressively Improves Mood and Decreases Stress in a Sample of UK Prisoners

Table 2

Summary of key statistical results.

in final model95% CI value

Δ perceived stress
 Yoga classes attended−1.053 ± 0.383[−1.850, −0.341]
 Self-practice 3-4 times per week−4.650 ± 2.293[−9.114, 0.064]
 Self-practice 5 or more times per week−5.329 ± 2.408[−10.147, −0.636]
 Psychological distress at T1−0.450 ± 0.169[−0.777, −0.109]
Δ psychological distress
 Perceived stress at T1−0.584 ± 0.253[−1.176, −0.233]
Δ positive affect
 Positive affect at T1−0.609 ± 0.139[−0.874, −0.33]
Δ negative affect
 Yoga classes attended−0.914 ± 0.473[−1.666, 0.217]
 Self-practice 5 or more times per week−4.863 ± 2.187[−9.128, −0.441]
 Gender9.331 ± 3.672[1.945, 16.639]
 Educational qualifications achieved−2.913 ± 1.042[−4.947, −0.825]
 Negative affect at T1−0.563 ± 0.186[−0.931, −0.187]

First column shows, in italics, dependent values for each regression model. Beta-values (±bootstrapped standard errors) are shown, together with 95% confidence intervals (CIs) and bootstrapped values. Only regressors significant at and are presented here (see Supplemental Table for full results of regression analyses). Self-practice regressors are coded against a reference of no yoga self-practise. Note that, due to regression-to-the-mean phenomena, any relationship specifically between baseline psychometrics and key dependent variables should be interpreted with care (see also main text).