The Role of Optical Radiations in Skin Cancer

Table 2

Results of IARC meta-analysis of studies on the correlation between sun lamp exposure and the risk of melanoma, basal cell carcinoma, and squamous cell carcinoma onset [58].

	Studies (n)	Relative risk; (95% CI)	Heterogeneity; P value 𝜒^2
Melanoma
Sun lamp exposure	19	1.15; (1.00–1.31)	0.013
First exposure in young; age	7	1.75; (1.35–2.26)	0.55
Past exposure	5	1.49 (0.93–2.38)	0.018
Recent exposure	5	1.10; (0.76–1.60)	0,05625
Basal cell carcinoma
Sun lamp exposure	4	1.03; (0.56–1.90)	0.06
Squamous cell carcinoma
Sun lamp exposure	3	2.25; (1.08–4.70)	0.10