Table 2.
Baseline values and changes after 7 months of follow-up within and between the control and intervention groups according to secondary outcomes including stages of change, self-efficacy and decisional balance
Variables | Control group | Intervention group | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Baseline | Follow-up | Change | P-value | Baseline | Follow-up | Change | Between-group: baseline | Between-group: after 7 months of follow-up | ||||||||
Mean | 95 % CI | Mean | 95 % CI | Mean | 95 % CI | Mean | 95 % CI | Mean | 95 % CI | Mean | 95 % CI | P-value | P-value | P-value | ||
Stage of change groups (%) | 0·46† | <0·001† | 0·13§ | <0·001§ | ||||||||||||
Pre-action | 16·2 | 15·4 | −0·7 | −2·7, 1·2 | 18·8 | 12·4 | −6·4 | −8·6, −4·2 | ||||||||
Decision | 36·0 | 27·5 | −8·5 | −11·0, −6·1 | 34·7 | 18·5 | −16·2 | −18·9, −13·4 | ||||||||
Action | 47·8 | 57·1 | 9·3 | 6·8, 11·7 | 46·5 | 69·1 | 22·6 | 19·8, 25·3 | ||||||||
Self-efficacy* | 8·9 | 8·7, 9·1 | 8·8 | 8·7, 9·0 | −0·02 | −0·2, 0·1 | 0·62‡ | 8·6 | 8·5, 8·8 | 9·1 | 8·9, 9·3 | 0·5 | 0·3, 0·7 | <0·001‡ | 0·03‖ | 0·01‖ |
Decisional balance | ||||||||||||||||
Benefits | 12·6 | 12·5, 12·7 | 12·6 | 12·5, 12·7 | 0·01 | −0·1, 0·1 | 0·76‡ | 12·4 | 12·3,12·5 | 12·5 | 12·3, 12·6 | 0·05 | −0·1, 0·2 | 0·52‡ | 0·01‖ | 0·03‖ |
Barriers | 6·1 | 5·9, 6·2 | 6·1 | 5·9, 6·2 | −0·0 | −0·2, 0·1 | 0·97‡ | 6·2 | 6·1, 6·3 | 6·0 | 5·9, 6·2 | −0·2 | −0·3, 0·0 | 0·06‡ | 0·41 | 0·37‖ |
FV crops (%) | 78·2 | 76·4 | −1·7 | −3·9, 0·4 | 0·12† | 70·9 | 77·2 | 6·3 | 3·6, 9·1 | <0·001† | <0·001§ | 0·59§ |
Self-efficacy and decisional balance items were scored on a 5-point scale from 1 to 5 (maximum score of 20). For benefits, higher scores indicate greater perceived benefits; lower scores indicate smaller perceived barriers.
McNemar test.
Paired Student test.
Chi-squared test.
Student’s t-test.
Data are presented as percentages or means (95 % CIs).