Table 4 Primary and secondary outcomes of studies applying short-term interactive interventions classified as nutrition education and promotion alone
From: Nutrition interventions at point-of-sale to encourage healthier food purchasing: a systematic review
References | Primary outcomes | Secondary outcomes |
|---|---|---|
Connell (moderate)1[31] | No difference in self-reported intake. | No difference in intention to increase intake of healthier food options. Knowledge increased but there was no difference between intervention and control communities in relation to attitude and beliefs. |
Foster (moderate) [32] | Intervention group purchased more skim 1% fat milk, water and 2 of 3 types of frozen meals compared to the control group. There were no differences between groups for cereal, whole or 2% fat milk, beverages, or diet beverages. | Â |
Milliron (strong) [21] | Intervention group purchased more fruit & dark-green vegetables but there were no differences in the total fat, saturated fat or vegetable serves purchased compared to the control group. | Awareness of shelf-talkers was higher in the intervention than in the control stores. |
Ni Mhurchi (strong) [22] | There was no difference in the purchase of target foods or target nutrients between the intervention and control groups. | Â |
Reger 1999 (strong)1[23] | Purchase of healthier milk options increased from baseline to the end of the intervention and unhealthier options decreased compared to the control communities. This difference remained 6Â months later. | Â |
Reger 2000 (strong) [25] | No difference in sales of healthier milk options as a proportion of overall milk sales between intervention and comparison communities at the end of the intervention and at 6Â months follow up. | Â |
Silzer (weak) [15] | Intervention group reported more purchasing healthier food options. | Intervention group reported more reading of labels and preparation of healthier food options. |
Winett, 1991 (weak) [45] | Purchase of healthier food options in two of the 13 categories increased in the intervention group compared to the control group. | Â |
Winett, 1991 (weak) [46] | Purchase of healthier food options in two categories increased in the intervention group compared to the control group. | Â |