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Table 2 Mean and SD values for psychosocial process variables in intervention and control groups, and odds ratios and 95% CI (unless otherwise indicated)

From: Psychosocial mediators of change in physical activity in the Welsh national exercise referral scheme: secondary analysis of a randomised controlled trial

Psychological process Control Intervention Odds ratio (95% CI)
Amotivation (n = 1098) 0.46 (0.76) 0.33 (0.66) 0.69 (0.54-0.90)
External (n = 1102) 0.67 (0.88) 0.68 (0.85) 1.07 (0.86-1.34)
Introjected (n = 1102) 1.66 (1.14) 1.94 (1.19) 1.56 (1.25-1.95)
Identified (n = 1105) 2.50 (1.03) 2.83 (1.91) 1.66 (1.33-2.07)
Intrinsic (n = 1102) 2.10 (1.25) 2.65 (1.14) 2.28 (1.81-2.86)
Autonomous motivation* (n = 1096) 6.88 (6.84) 9.30 (6.23) 0.32 (0.21 to 0.44)
Self-efficacy (n = 1102) 3.44 (1.07) 3.37 (1.12) 0.85 (0.68 to 1.05)
Social Support family (participation and involvement) (n = 1044) 1.83 (0.91) 2.01 (0.93) 1.45 (1.15-1.82)
Family - exercise together# (n = 1036) 1.74 (1.07) 1.75 (1.10) 0.94 (0.71-1.24)
Family - verbal support # (n = 1036) 2.16 (1.20) 2.51 (1.22) 1.93 (1.47-2.52)
Family - planning exercise# (n = 1040) 1.52 (0.90) 1.64 (1.00) 1.42 (1.06-1.90)
Social support friends (participation and involvement) (n = 1006) 0.84 (0.85) 0.98 (0.84) 1.37 (1.09-1.73)
Friends - exercise together## (n = 1001) 1.50 (0.90) 1.51 (0.87) 1.06 (0.78-1.45)
Friends - verbal support ## (n = 1004) 1.71 (0.98) 1.89 (1.06) 1.37 (1.04-1.81)
Friends - planning exercise## (n = 981) 1.24 (0.62) 1.27 (0.68) 1.11 (0.75-1.64)
  1. *B-coefficients and 95% CIs from linear regression.
  2. #Sub-scales emerging from factor analysis of `family social support’ scale.
  3. ##Sub-scales emerging from factor analysis of `friends social support’ scale.
  4. significant associations (p < 0.05) in bold.