Variable

Average ± DE

Food service

Total

Cafeteria

(n = 10)

Fast-food establishment

(n = 7)

Restaurant

(n = 21)

Canteen

(n = 19)

Index of knowledge

0.8071 ± 0.1390

0.7449 ± 0.1589

0.8163 ± 0.1096

0.7820 ± 0.0966

0.7945 ± 0.1169

Index of attitudes

0.8820 ± 0.0881

0.7743 ± 0.1365

0.8314 ± 0.0898

0.8284 ± 0.1552

0.8323 ± 0.1214

Index of practices

0.6880 ± 0.0607

0.6200 ± 0.1133

0.6005 ± 0.0973

0.6095 ± 0.0780

0.6212 ± 0.0911

Index of perceptions

0.7467 ± 0.1559

0.6548 ± 0.1486

0.7349 ± 0.0823

0.6851 ± 0.1392

0.7105 ± 0.1264

Global rate of use of salt and high-sodium products

0.7810 ± 0.08314

0.6985 ± 0.08709

0.7458 ± 0.05956

0.7262 ± 0.0901

0.7396 ± 0.07996