# Table 1 Secondary outcome measures by group at baseline and follow up1

Outcome measure Intervention Control Difference between groups in changes over time (interaction effect)3 P value
Baseline (T1) mean (S.E)2 Follow up (T2) mean (S.E) Change from baseline (T2-T1) mean (S.E) P value Baseline (T1) mean (S.E)2 Follow up (T2) mean (S.E) Change from baseline(T2-T1) mean (S.E) P value
Total weekly food and drink expenditure (AUD) 4 137.16 (2.72) 135.60 (3.15) −1.56 (2.46) P = 0.53 147.34 (4.68) 151.68 (5.20) 4.33 (3.96) P = 0.27 P = 0.21
Total weekly fruit and veg expenditure (AUD) 4 20.77 (0.61) 23.28 (0.73) 2.50 (0.63) P < 0.001 21.70 (1.06) 22.24 (1.20) 0.53 (1.01) P = 0.60 P = 0.10
Total weekly take away/fast food expenditure (AUD) 4 13.17 (0.59) 9.86 (0.69) −3.31 (0.55) P < 0.001 12.395 (1.01) 12.05 (1.13) −0.34 (0.87) P = 0.70 P = 0.004
I can prepare a meal from basics that is low in price 5 2.99 (0.03) 3.41 (0.04) 0.41 (0.04) P < 0.001 3.00 (0.05) 2.97 (0.06) −0.02 (0.06) P = 0.71 P <0.001
Buying more fruit/vegetables would not be difficult on my budget 5a 2.85 (0.03) 2.93 (0.04) 0.08 (0.04) P = 0.06 2.85 (0.06) 2.89 (0.07) 0.04 (0.07) P = 0.59 P = 0.60
Fruit and vegetables are cheaper when they are in season 5 3.42 (0.02) 3.62 (0.03) 0.21 (0.03) P < 0.001 3.43 (0.04) 3.50 (0.05) 0.07 (0.06) P = 0.21 P = 0.04
Cooking and healthy eating knowledge, attitudes beliefs and behaviours
I can put together a healthy meal from scratch in 30 minutes 5 2.85 (0.031) 3.30 (0.04) 0.45 (0.04) P < 0.001 2.85 (0.05) 2.89 (0.06) 0.03 (0.06) P = 0.61 P <0.001
I find it easy to change my eating habits 5 2.52 (0.03) 2.71 (0.04) 0.19 (0.04) P < 0.001 2.52 (0.05) 2.53 (0.06) 0.01 (0.06) P = 0.82 P = 0.02
Vegetables can be tasty foods 5 3.54 (0.02) 3.69 (0.03) 0.15 (0.03) P < 0.001 3.53 (0.04) 3.51 (0.05) −0.02 (0.05) P = 0.74 P = 0.01
I eat enough fruit and vegetables 5 2.66 (0.03) 3.00 (0.04) 0.34 (0.04) P < 0.001 2.66 (0.06) 2.68 (0.07) 0.02 (0.06) P = 0.71 P <0.001
My lifestyle does not Prevent me eating a healthy diet 5a 3.11 (0.03) 3.33 (0.04) 0.22 (0.04) P < 0.001 3.04 (0.05) 3.12 (0.06) 0.08 (0.06) P = 0.17 P = 0.07
Cooking enjoyment and satisfaction
I enjoy cooking 5 3.05 (0.03) 3.33 (0.04) 0.28 (0.03) P < 0.001 3.12 (0.05) 3.17 (0.06) 0.06 (0.05) P = 0.28 P = 0.001
I get a lot of satisfaction from cooking my meals 5 2.96 (0.03) 3.31 (0.04) 0.35 (0.03) P < 0.001 3.02 (0.05) 3.05 (0.06) 0.03 (0.05) P = 0.60 P <0.001
I enjoy cooking for others 5 3.01 (0.03) 3.27 (0.04) 0.26 (0.03) P < 0.001 3.09 (0.06) 3.16 (0.07) 0.07 (0.06) P = 0.22 P = 0.004
I enjoy eating a meal with others 5 3.51 (0.02) 3.60 (0.03) 0.09 (0.03) P = 0.01 3.47 (0.39) 3.55 (0.05) 0.07 (0.05) P = 0.16 P = 0.81
Social eating
Frequency of eating together at home with others 6 3.94 (0.07) 4.20 (0.08) 0.24 (0.07) P < 0.001 3.97 (0.11) 4.02 (0.13) 0.06 (0.11) P = 0.61 P = 0.13
Frequency of eating dinner in front of the television 6 2.69 (0.08) 2.50 (0.09) −0.19 (0.07) P = 0.01 2.51 (0.14) 2.52 (0.15) 0.00 (0.11) P = 0.99 P = 0.17
Frequency of eating dinner at a dinner table 6 3.12 (0.08) 3.40 (0.09) 0.29 (0.06) P < 0.001 3.11 (0.13) 3.09 (0.14) −0.02(0.10) P = 0.86 P = 0.01
Health and emotional well-being
Global self-esteem score 7 20.88 (0.22) 22.60 (0.25) 1.73 (0.20) P <0.001 20.46 (0.37) 21.02 (0.42) 0.56 (0.32) P = 0.09 P = 0.002
General Health 8 2.77 (0.04) 3.11 (0.04) 0.34 (0.04) P <0.001 2.80 (0.06) 2.86 (0.07) 0.06 (0.06) P = 0.34 P <0.001
Body Mass Index (BMI) 28.86 (0.27) 28.78 (0.28) −0.09 (0.13) P = 0.49 29.71 (0.46) 29.70 (0.47) −0.02 (0.20) P = 0.94 P = 0.76
1. 1Outcomes within each group and over time were determined by a mixed linear model for repeated measures using all available data at each time point using STATA (version 12.0).
2. 2Baseline values were not significantly different between groups (independent t tests). 3A significant group and time interaction effect denotes that the response over time differed between groups (P = 0.05). 4Expenditure data was collected in Australian dollars (AUD) on a 7-point scale which was analyse by its midpoints. 5Mean predicted score indicating level of agreement with statement from a Likert Scale (1 = strongly disagree, 2 = somewhat disagree, 3 = somewhat agree, 4 = strongly agree), aScore assignment was reversed. 6Mean frequency for a typical week was collected on a 6 or 7-point scale which was analyse by its midpoint, with the maximum category being five or more times per week. 7Rosenberg’s global self-esteem score (Low self-esteem = 0-14, Normal self-esteem = 15-25, High self-esteem = 16-30). 8Perceived general health (poor = 1, fair = 2, good = 3, very good = 4, excellent = 5).