Table 1.

Prevalence rates of skin cancer and precursors in geriatric populations according to study setting.

Study setting	Skin cancer	Prevalence-rate (%)
	Pre-malignant skin lesions and AKs	10.4-69.4
	All malignant skin cancer	2-12
	BCC	2.8
	cSCC	0.2
	Melanoma	0.1
Institutional long-term care/nursing homes	Pre-malignant skin lesions and AKs	4.6-29.3
	All malignant skin cancer	1-5.6
	BCC	3.9-14.8%
	cSCC	8%
	Melanoma	2.3%
Hospital-based geriatric units	Pre-malignant skin lesions and AKs	32.8%
	All malignant skin cancer	4.9%
	BCC	-
	cSCC	-
	Melanoma	-
Hospital/outpatient-based dermatology setting	Pre-malignant skin cancer and AKs	0.5-39%
	All malignant skin cancer	2-13.2%
	BCC	11-21%
	cSCC	2%
	Melanoma	4%

AKs=actinic keratoses; BCC=Basal cell carcinoma; cSCC=cutaneous squamous cell carcinoma