Personal ultraviolet Radiation exposure in a cohort of Chinese mother and child pairs: the Chinese families and children study

Table 4 Personal UVR dose (MED), time outdoors and use of sun protection, Chinese Families and Children Study, 2012

	Urban			Rural
	Mothers	Adolescents		Mothers	Adolescents
	Mothers	Male	Female	Mothers	Male	Female
Average daily personal UVR dose (MED)^a (range)	0.78 (0.06, 2.43)	0.48 (0.06, 1.15)	0.81 (0.002, 2.87)	4.53 (0.54, 12.58)	2.16 (0.16, 8.17)	1.05 (0.03, 4.69)
Personal fraction %^b	3.80%	2.34%	3.95%	22.38%	10.67%	5.19%
Average self-reported duration per day outdoors (minutes)^c (range)	81.1 (7.5, 315.2)	98.3 (7.5, 682.5)	72.9 (2.5, 158.7)	334.4 (30.0, 639.8)	147.9 (52.0, 612.5)	94.6 (30.0, 270.7)
Use of sun protection^d:
Sunscreen	10	0	0	7	1	5
Hats^e	12	0	2	11	0	0
Gloves	10	0	0	6	1	0
Umbrella	5	0	0	0	0	0

^aMinimal Erythemal Dose (MED)
^bEstimated as the ratio between the average values of daily personal UVR dose divided by the average values of ambient UVR
^cAverage value of the group that completed 3 days of the sun diary
^dIncludes the use of any of the listed items during the 3-day study period
^eHead partially or completely covered

ISSN: 1471-2458