Table 3 Primary and secondary outcomes of studies applying long-term non-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 |
|---|---|---|
Ernst (weak)1[40] | No difference between intervention and comparison in volume sold of target product. There was an increase in the target milk product as a percentage of total milk sales in the intervention group. | Customer knowledge increased. |
Levy (strong) [16] | Positive program effect. Product sector market share increased in the intervention group compared to the same product sector market in the control study. | Â |
Rodgers (strong) [25] | No intervention effect for self-reported purchase of healthier foods. Out of eight food categories assessed one food category showed a modest increase in percentage sales of recommended fresh produce to all fresh produce in the intervention stores. | No intervention effect for change in food preparation and knowledge. |