Table 3.
Results of linear mixed modelling: interaction of time and HAPA stage of change on healthy nutrition (MEDAS sum score) among adults (mean age 42·2 (sd 10·4) years, range 18–65 years; n 454 at T1, n 112 at T2) participating in a web-based intervention in Italy, Spain and Greece, 2015
| 95 % CI | |||||||
|---|---|---|---|---|---|---|---|
| Parameter | Estimate | se | df | t | P | Lower bound | Upper bound |
| Intercept | 5·81 | 0·25 | 452·02 | 23·01 | <0·01 | 5·32 | 6·31 |
| Time | 2·04 | 0·36 | 157·25 | 5·66 | <0·01 | 1·33 | 2·75 |
| Sex | 0·17 | 0·12 | 337·88 | 1·43 | 0·15 | −0·06 | 0·39 |
| Age | 0·02 | 0·01 | 354·63 | 4·39 | <0·01 | 0·01 | 0·03 |
| BMI | −0·04 | 0·01 | 344·33 | −3·32 | <0·01 | −0·06 | −0·01 |
| Stage | 0·88 | 0·14 | 438·90 | 6·36 | <0·01 | 0·61 | 1·16 |
| Time×stage | −0·79 | 0·21 | 155·67 | −3·74 | <0·01 | −1·20 | −0·37 |
HAPA, Health Action Process Approach; MEDAS, Mediterranean Diet Adherence Screener; T1, baseline; T2, follow-up.