Table 2.

Mean Listeria food group sub-scale scores and total LFES, with their standard deviations, for the young cohort of women in the Australian Longitudinal Study on Women's Health, by pregnancy status

					Birth <12 months
	Pregnant		Trying to conceive		ago		Other
	(n 606, 8·1 %)		(n 454, 6·1 %)		(n 829, 11·1 %)		(n 5597, 74·8 %)
Food item (maximum score)	Mean	sd	Mean	sd	Mean	sd	Mean	sd	P value*
Cheese (9)	5·0†	1·7	4·8	1·8	5·2†	1·8	4·7	1·9	<0·001
Ice cream (9)	2·7†	1·6	2·5†	1·5	2·7†	1·7	2·2	1·5	<0·001
Chicken (9)	3·8	1·2	4·0	1·2	4·0	1·2	3·9	1·5	0·016
Bacon (9)	1·8	1·1	1·9	1·2	2·0†	1·2	1·8	1·3	<0·001
Ham (9)	2·5	1·7	2·7†	1·8	3·0†	1·8	2·5	1·7	<0·001
Corned beef, luncheon meats or salami (9)	1·7	1·6	1·8	1·6	1·9†	1·6	1·7	1·6	0·0004
Lettuce, endive or other salad greens (9)	3·7†	1·6	4·0	1·7	3·9	1·7	4·0	1·7	0·002
Cabbage (9)	1·6	1·7	1·6	1·7	1·6	1·7	1·7	1·6	0·690
Cauliflower (9)	2·5	1·8	2·6	1·9	2·7†	1·9	2·4	1·8	<0·001
Broccoli (9)	3·5	1·8	3·6	1·9	3·7†	1·9	3·4	1·8	<0·001
Bean sprouts or alfalfa sprouts (9)	1·0†	1·2	1·1	1·4	1·0†	1·3	1·3	1·5	<0·001
LFES (99)	29·9	7·5	30·8†	8·0	31·7†	7·8	29·5	7·9	<0·001

LFES, Listeria Food Exposure Score.

*P values from one-way ANOVA.

†Mean value was significantly different from that of the ‘other’ group using Tukey post hoc analysis (P < 0·001).