. 2020 Aug 8;22(8):1355–1370. doi: 10.1111/jch.13937

TABLE 5.

Characteristics of included evaluation studies undertaken between January 2009 and November 2019 (n = 1)

Author, year, and design	Country	Intervention	Outcome measure	Summary result
Wentzel‐Viljoen et al, 2017 ⁴⁶ Community‐based longitudinal cohort study	South Africa	Mass‐media campaigns	Increased awareness of the need to reduce discretionary salt use	After mass‐media campaign to increase the awareness of the need to reduce discretionary salt, significantly more participants (38% increased to 59.5%) thought that it was important to reduce the amount of salt consumed and reported that they were taking steps to control salt intake. In particular, adding salt while cooking (45.2% increased to 59.1%) and at the table (14.2% increased to 20.1%) occurred significantly less frequently after the campaign than before.

Author, year, and design

Country

Intervention

Outcome measure

Summary result

Wentzel‐Viljoen et al, 2017 ⁴⁶

Community‐based longitudinal cohort study

South Africa

Mass‐media campaigns

Increased awareness of the need to reduce discretionary salt use

After mass‐media campaign to increase the awareness of the need to reduce discretionary salt, significantly more participants (38% increased to 59.5%) thought that it was important to reduce the amount of salt consumed and reported that they were taking steps to control salt intake.
In particular, adding salt while cooking (45.2% increased to 59.1%) and at the table (14.2% increased to 20.1%) occurred significantly less frequently after the campaign than before.