Table 3.

Mean and range of scores for each group of respondents to the online salt knowledge questionnaire

	Experts				Students				Lay people
Section	Mean	sd	Range (min – max score)		Mean	sd	Range (min – max score)		Mean	sd	Range (min – max score)
Dietary recommendations†,‡,§	2·93	0·88	1	4	1·94	1·11	0	4	0·97	0·88	0	3
Diet–disease relationship†,‡,§	4·39	0·70	3	5	4·06	0·56	3	5	3·47	0·70	2	5
Salt content of commonly eaten foods†,‡,§	11·00	1·36	8	13	8·88	1·86	5	12	8·03	2·32	2	12
Common misconceptions†,‡,§	4·90	1·30	1	6	3·13	1·64	0	6	1·94	1·37	0	6
Label reading†,§	1·78	0·47	0	2	1·59	0·50	1	2	1·44	0·65	0	2
Total score†,‡,§	25·00	2·88	19	30	19·59	3·60	11	26	15·86	3·50	9	24

†Significantly different between the three groups (Kruskal–Wallis H test, P < 0·05).

‡Significantly different, experts v. students (Mann–Whitney U test, P < 0·05).

§Significantly different, experts v. lay people (Mann–Whitney U test, P < 0·05).