Table 1.

Characteristics of subjects with melanoma who were identified in the three administrative healthcare databases

Characteristics	Unit 1 (Umbria)	Unit 2 (ASL Napoli 3 Sud)	Unit 3 (Friuli Venezia Giulia)
Incident cases (N medical chart reviewed)	112	116	130
International Classification of Diseases, Ninth Revision code, n (%)
172.0 Malignant melanoma of skin of lip	–	–	1 (1)
172.1 Malignant melanoma of skin of eyelid, including canthus	1 (1)	–	2 (2)
172.2 Malignant melanoma of skin of ear and external auditory canal	4 (4)	2 (2)	3 (2)
172.3 Malignant melanoma of skin of other and unspecified parts of face	9 (8)	8 (7)	13 (10)
172.4 Malignant melanoma of skin of scalp and neck	5 (4)	2 (2)	9 (7)
172.5 Malignant melanoma of skin of trunk, except scrotum	34 (30)	39 (34)	49 (38)
172.6 Malignant melanoma of skin of upper limb, including shoulder	19 (17)	11 (10)	15 (12)
172.7 Malignant melanoma of skin of lower limb, including hip	22 (19)	30 (26)	27 (21)
172.8 Malignant melanoma of other specified sites of skin	4 (4)	5 (4)	8 (6)
172.9 Melanoma of skin, site unspecified	14 (13)	19 (16)	3 (2)
Admission to department, N (%)
Medical	28 (25)	21 (18)	18 (14)
Surgical	84 (75)	95 (82)	112 (86)
Sex, n (%)
Male	64 (57)	52 (45)	69 (53)
Age, n (%)
<40	11 (10)	10 (9)	13 (10)
40–59	43 (38)	46 (39)	56 (43)
≥60	58 (52)	60 (52)	61 (47)
Clinical examination, n (%)
Detailed clinical description of the skin lesion	93 (83)	61 (53)	59 (45)
Instrumental diagnosis, n (%)
Ultrasound	14 (13)	30 (26)	22 (17)
CT scan	57 (51)	25 (22)	14 (11)
PET/CT	3 (3)	3 (3)	3 (2)
Brain CT scan or MRI	4 (4)	5 (4)	–
Lymphoscintigraphy	62 (55)	33 (28)	64 (49)
None instrumental examinations	48 (43)	43 (37)	58 (45)
Surgical procedures, n (%)
Excisional biopsy, wide excision, sentinel lymph node biopsy and lymphadenectomy	94 (84)	92 (79)	119 (92)
Histological documentation, n (%)
Diagnostic biopsy	77 (69)	33 (28)	55 (42)
Excision biopsy	80 (71)	94 (81)	118 (91)
Both diagnostic and excision biopsies	56 (50)	28 (24)	52 (40)