Table 4.

Results of the questionnaire administration for the assessment of exposure to solar ultraviolet radiation at work in the group of outdoor workers (OW, n=190) and students (S, n=93). The valid percentages of responders are reported in the cells for each item, in case of significant statistical difference at the Pearson’s chi-square test the p value is reported in the last column

	Never		Seldom		Sometimes		Often		Always		P
	OW	S	OW	S	OW	S	OW	S	OW	S
Working outdoor	0.6	5.6	4.0	12.2	14.1	22.2	52.0	34.4	29.4	25.6	<0.001
Having lunch outdoor	43.4	28.0	22.0	36.6	23.1	25.8	9.2	5.4	2.3	4.3	0.03
Working postures
Standing: looking down	9.1	12.0	9.1	19.6	45.5	33.7	34.8	32.6	1.5	2.2	0.14
Standing: looking straight ahead	10.1	6.5	5.1	5.4	19.0	37.6	55.1	33.3	10.8	17.2	0.002
Standing: looking up	7.8	25.3	22.7	36.3	43.8	22.0	24.2	13.2	1.6	3.3	<0.001
Bent over	12.0	23.3	20.0	17.1	50.0	31.7	18.0	25.4	0	2.5	0.25
Sitting: looking down	21.7	18.0	19.2	23.6	28.3	30.3	24.2	27.0	6.7	1.1	0.32
Sitting: looking straight ahead	19.2	10.2	13.1	13.6	20.8	31.8	35.4	33.0	11.5	11.4	0.25
Sitting: looking up	26.1	35.6	27.2	35.6	28.9	22.2	13.9	4.4	3.9	2.2	0.11
Working in shades	10.7	8.9	24.0	22.2	47.6	50.0	14.8	17.8	2.9	1.1	0.84
Working close to reflecting surfaces	17.8	23.6	27.0	31.5	34.5	36.0	13.8	7.9	6.9	1.1	0.13
Wearing a hat	25.1	45.1	10.6	20.9	15.1	8.8	18.4	13.2	30.7	12.1	<0.001
Wearing sunglasses	39.0	45.1	15.8	24.2	16.9	17.6	13.6	6.6	14.7	6.6	0.07
Wearing glasses/contact lenses	78.1	78.9	4.7	4.4	3.0	2.2	1.8	3.3	12.4	11.1	0.93
Wearing UV protective clothes	14.5	23.1	20.9	31.9	27.9	24.2	23.3	18.7	13.4	2.2	0.007
Using sunscreens	52.8	59.3	20.8	24.2	14.6	7.7	6.2	7.7	5.6	1.1	0.17