Table 7. Percent increase in SCC incidence and risk at 80 years of age due to certain added UV doses

% increase in annual UV dose during working years (age 20-65 yr) 37% lower increase in annual UV dose during school years (age 5-20 yr) % increase in risk of a person of 80 yrs of having had an SCC with % increase given in columns 1 and 2 % increase in overall incidence of SCC with everybody subjected to % increase given in columns 1 and 2 (EU std population) % increase in overall incidence of SCC with a wide spread* in annual solar UV dose and with an added annual dose given as % of median in columns 1 and 2
Note: the SCC incidence in Denmark in 2007 was 19.1 10-5/yr in males and 12 10-5/yr in females (Birch-Johansen et al. 2010), the corresponding risk of SCC at the age of 80 years is estimated to equal 0.020 in males and 0.013 in females (using equations 1-5).
* 95% in the range 3.3-fold under and over the median, according to a lognormal distribution similar to that in DK.
1 0.63 1.6 1.6 0.9
2 1.26 3.2 3.2 1.8
5 3.15 8.0 8.0 4.5
10 6.3 16.4 16.4 9.2
20 12.6 34.1 34.2 19.0

(from indoor lighting) to the annual UV dose in school and working years (added UV dose given as % of the annual solar UV dose)

 

Source: SCENIHR, Health effects of artificial light, 19 March 2012,
 3.7 Exposure and health risk scenarios, pp. 71-78.