| Combined interventions | Brief advice | Adjusted intervention effectc | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Outcomes (n for M (SD)) | Baseline M (SD) | 6 months M (SD)b | 12 months M (SD)b | Baseline M (SD) | 6 months M (SD)b | 12 months M (SD)b | 6 months Difference in means (95% CI) | n | 12 months Difference in means (95% CI) | n |
Objective activity DayPAR (321)d | 1.84 (.62) | - | 1.94 (.65) | 1.87 (.55) | - | 2.00 (.57) | - | Â | -.04 (-.16 to .08) | 321 |
Self-reported activity (MET hrs/wk) (269)d | 85.50 (47.80) | 99.69 (49.95) | 103.95 (59.66) | 88.27 (60.30) | 97.47 (56.96) | 102.71 (63.44) | .51 (-8.78 to 9.80) | 302 | -.23 (-9.68 to 9.23) | 324 |
Global instrumental attitude (307) | 4.47 (.48) | 4.38 (.52) | 4.34 (.52) | 4.46 (.49) | 4.29 (.51) | 4.28 (.51) | .09 (-.02 to .20) | 327 | .06 (-.04 to .16) | 332 |
Global affective attitude (308) | 3.90 (.57) | 3.88 (.62) | 3.84 (.58) | 3.83 (.66) | 3.72 (.64) | 3.73 (.64) | .13 (.01 to .26) | 329 | .09 (-.02 to .21) | 332 |
Global subjective norm (309) | 3.63 (.73) | 3.54 (.85) | 3.57 (.71) | 3.49 (.89) | 3.38 (.77) | 3.41 (.85) | .09 (-.06 to .25) | 329 | .10 (-.06 to .25) | 332 |
Global perceived behavioural control (309) | 3.88 (.58) | 3.73 (.69) | 3.59 (.72) | 3.77 (.62) | 3.51 (.69) | 3.53 (.70) | .18 (.03 to .32) | 329 | .05 (-.11 to .20) | 332 |
Behavioural intention (309) | 3.72 (.63) | 3.85 (.64) | 3.65 (.67) | 3.71 (.64) | 3.53 (.65) | 3.57 (.66) | .33 (.20 to .46) | 327 | .10 (-.04 to .24) | 332 |
Belief-based instrumental attitude (288) | 25.46 (10.40) | 25.45 (11.38) | 25.15 (11.49) | 25.89 (10.29) | 22.91 (10.67) | 22.78 (10.66) | 3.78 (1.68 to 5.88) | 321 | 3.61 (1.54 to 5.67) | 329 |
Belief-based affective attitude (308) | 8.97 (4.05) | 8.63 (4.14) | 8.62 (4.02) | 8.47 (3.91) | 7.81 (4.08) | 7.50 (3.78) | .74 (-.06 to 1.55) | 328 | .96 (.20 to 1.72) | 332 |
Belief-based subjective norm (197)e | 23.23 (13.28) | 21.80 (13.58) | 22.21 (12.16) | 22.46 (12.22) | 20.75 (12.23) | 21.63 (11.70) | .89 (-1.96 to 3.75) | 214 | .47 (-2.17 to 3.11) | 223 |
Belief-based perceived behavioural control (301)d | .73 (3.57) | .05 (4.08) | -.73 (4.10) | 1.13 (3.90) | -.53 (3.68) | -.26 (3.66) | .66 (-.20 to 1.52) | 321 | -.04 (-.90 to .83) | 331 |