Table 2

Characteristics of validation and impact analysis studies included

Validation studies
Author year, countrySettingCPR usedLesionsPatient: n, sex, mean ageCPR applied by: n
Experience
Reported sensitivity/specificity
Annessi 2007,25 ItalyDepartment of dermatologyABCD rule of dermoscopy
7-point checklist for dermoscopy
198
96 melanomas, 102 non-melanoma
N=195
54% male
Mean age: 43
2
ELM-experienced dermatologists
ABCD rule of dermoscopy (cut-point ≥4.75)
Se: 84.4
Sp: 74.5
7-point checklist for dermoscopy (cut-point ≥3)
Se: 78.1
Sp: 64.7
Argenziano 1998,26 ItalyDepartment of dermatology7-point checklist for dermoscopy
ABCD rule of dermoscopy
342
117 melanoma, 225 non-melanoma
NR5
3 experienced
2 less experienced
7-point checklist for dermoscopy (cut-point ≥3)
Expert user:
Se: 95.0
Sp: 75.0
Non-expert user (mean):
Se: 89.0
Sp: 61.5
ABCD rule of dermoscopy (cut-point ≥4.75)
Expert user:
Se: 85.0
Sp: 66.0
Non-expert user (mean):
Se: 91.5
Sp: 31.0
Argenziano 2003,14 9 countriesDepartment of dermatologyABCD rule of dermoscopy
7-point checklist for dermoscopy
Menzies 1996 dermoscopy for melanoma
108NR40
Experienced
ABCD rule of dermoscopy (cut-point ≥4.75)
Se: 82.6
Sp: 70.0
7-point checklist for dermoscopy
Se: 85.7
Sp: 71.1
Menzies 1996 dermoscopy for melanoma
Se: 85.7
Sp: 71.1
Argenziano 2011,27 ItalyDepartment of dermatology7-point checklist for dermoscopy
Revised 7-point checklist for dermoscopy
300
100 excised melanoma, 100 excised non-melanoma, 100 non-excised non-melanoma
NR8
Experienced
7-point checklist for dermoscopy (cut-point ≥3)
Se: 77.9
Sp: 85.6
Revised 7-point checklist for dermoscopy (cut-point ≥1)
Se: 87.8
Sp: 74.5
Benelli 1999,15 ItalyDepartment of dermatology7FFM (seven features for melanoma) dermoscopy
ABCDE clinical rule
401
60 melanomas, 341 non-melanoma
NR2
Research team
7FFM (seven features for melanoma) dermoscopy (cut-point of ≥2)
Se: 80.0
Sp: 89.1
ABCDE clinical rule (cut-point ≥2)
Se: 85.0
Sp: 44.5
Benelli 2000,28 ItalyDepartment of dermatology7FFM (seven features for melanoma) dermoscopy
ABCDE clinical rule
600
76 melanomas, 524 non-melanoma
Mean age: 5337FFM (seven features for melanoma) dermoscopy (cut-point of ≥2)
Se: 68.8
Sp: 86.0
ABCDE clinical rule (cut-point of ≥2)
Se: 47.3
Sp: 56.0
Binder 1999,66 AustriaDepartment of dermatologyABCD rule of dermoscopy250NR17
12 experienced
5 trainee
ABCD rule of dermoscopy (cut-point ≥4.75)
Se: 81.0
Sp: 77.0
ABCD rule of dermoscopy (cut-point ≥5.45)
Se: 73.0
Sp: 90.0
Blum 2003,71 GermanyDepartment of dermatologyThe 3-colour dermoscopy test249NRNRThe 3-colour dermoscopy test
Se: 76.9
Sp: 90.1
Blum 2004,47 GermanyDepartment of dermatologyABCD rule of dermoscopy
7-point checklist for dermoscopy
Menzies 1996 dermoscopy for melanoma
Simplified ABC-point list for dermoscopy
7FFM (seven features for melanoma) dermoscopy
269
84 melanomas, 185 non-melanoma
NRNRABCD rule of dermoscopy
Se: 90.5
Sp: 72.4
7-point checklist for dermoscopy
Se: 90.5
Sp: 87.0
Menzies 1996 dermoscopy for melanoma
Se: 95.2
Sp: 77.8
7FFM (seven features for melanoma) dermoscopy
Se: 94.0
Sp: 74.6
Simplified ABC-point list for dermoscopy
Se: 90.5
Sp: 87.0
Blum 2004,48 GermanyDepartment of dermatologyABCD rule of dermoscopy
7-point checklist for dermoscopy
Menzies 1996 dermoscopy for melanoma
7FFM (seven features for melanoma) dermoscopy
269
84 melanomas, 185 non-melanoma
NRNRABCD rule of dermoscopy
Se: 90.5
Sp: 72.4
7-point checklist for dermoscopy
Se: 90.5
Sp: 87.0
Menzies 1996 dermoscopy for melanoma
Se: 95.2
Sp: 77.8
7FFM (seven features for melanoma) dermoscopy
Se: 94.0
Sp: 74.6
Buhl 2012,35 GermanyDepartment of dermatologyDynaMel Algorithm
7-point checklist for dermoscopy
675N=688
57% male
Mean age: 42
Dermatology residentsDynaMel Algorithm
Se: 77.1
Sp: 98.1
7-point checklist for dermoscopy (cut-point ≥3)
Se: 47.5
Sp: 99.0
Carli 2002,29 ItalyDepartment of dermatologyABCD rule of dermoscopy
7-point checklist for dermoscopy
200
44 melanomas, 156 non-melanoma
NR5
Dermatology residents
ABCD rule of dermoscopy (cut-point ≥5.45)
Se: 88.1
Sp: 45.7
7-point checklist for dermoscopy (cut-point ≥3)
Se: 91.9
Sp: 35.2
Dal Pozzo 1999,30 ItalyDepartment of dermatology7FFM (seven features for melanoma) dermoscopy713
168 melanomas, 545 non-melanoma
NR37FFM (seven features for melanoma) dermoscopy
Se: 94.6
Sp: 85.5
Dolianitis 2005,49 AustraliaPrimary care and dermatology department7-point checklist for dermoscopy
ABCD rule of dermoscopy
Menzies 1996 dermoscopy for melanoma
40
20 melanomas, 20 non-melanoma
NR61
35 primary care physicians, 10 dermatologists, 16 trainee dermatologists
7-point checklist for dermoscopy
Se: 81.4
Sp: 73.0
ABCD rule of dermoscopy (cut-point ≥5.45)
Se: 77.5
Sp: 80.4
Menzies 1996 dermoscopy for melanoma
Se: 84.6
Sp: 77.7
Emery 2010,36 UKFamily practiceEmery 2010 SIAscopy in primary care for melanoma1211N=858
52% male
Mean age: 50
1
SIAscopy expert
Emery 2010 SIAscopy in primary care for melanoma
Se: 50.0
Sp: 84.0
Feldman 1998,67 AustriaDepartment of dermatologyABCD rule of dermoscopy500
30 melanomas, 470 non-melanoma
NRNRABCD rule of dermoscopy (cut-point ≥4.2)
Se: 88.0
Sp: 64.0
Gereli 2010,50 TurkeyDepartment of dermatology7-point checklist for dermoscopy
3-point checklist for dermoscopy
96
48 melanoma, 48 non-melanoma
NR3
2 experienced
1 inexperienced
7-point checklist for dermoscopy (cut-point ≥3)
Se: 87.5
Sp: 16.2
3-point checklist for dermoscopy (cut-point ≥2)
Se: 89.6
Sp: 31.2
Guitera 2012,51 MultipleSkin cancer clinicGuitera 2012 confocal microscopy for melanoma710
216 melanomas, 494 non-melanoma
N=663NRGuitera 2012 confocal microscopy for melanoma
Se: 87.6
Sp: 70.8
Haenssle 2010,37 GermanyDepartment of dermatology7-point checklist for dermoscopy1219
127 melanomas, 1092 non-melanoma
N=688
57% male
Mean age: 42
Inexperienced7-point checklist for dermoscopy (cut-point ≥3)
Se: 62.0
Sp: 97.0
Healsmith 1993,64 UKPigmented lesion clinicRevised 7-point checklist (clinical) ABCDE clinical rule165
65 melanoma, 100 non-melanoma
NRNRRevised 7-point checklist (clinical)
Se: 100
Sp: NR
ABCDE clinical rule
Se: 92.3
Sp: NR
Henning 2008,52 USADepartment of dermatologyCASH dermoscopy algorithm
ABCD rule of dermoscopy
7-point checklist for dermoscopy
Menzies 1996 dermoscopy for melanoma
150
50 melanoma, 100 non-melanoma
NR2
Inexperienced
CASH dermoscopy algorithm
Se: 87.0
Sp: 67.0
ABCD rule of dermoscopy
Se: 86.0
Sp: 74.0
7-point checklist for dermoscopy
Se: 76.0
Sp: 57.0
Menzies 1996 dermoscopy for melanoma
Se: 92.0
Sp: 38
Higgins 1992,38 UKDepartment of dermatology7-point checklist (clinical)
7-point checklist (clinical) revised
100
0 melanoma, 100 non-melanoma
N=100
30% male
Mean age: 36.7
NR7-point checklist (clinical) revised
Se: NR
Sp: 70.0
Kittler 1999,39 AustriaDepartment of dermatologyABCD rule of dermoscopy
ABCDE rule (dermoscopy)
356
73 melanomas, 283 non-melanoma
N=352
43% male
Mean age: 52
NRNR
Keefe 1989,40 ScotlandHospital dermatology clinic7-point checklist (clinical)222N=195
22% male
Mean age: 43
Dermatologists
195 patients
7-point checklist (clinical) (cut-point ≥3)
Dermatologists:
Se: 85.7
Sp: 66.5
Patients:
Se: 71.4
Sp: 66.2
Kreusch 1992,84 GermanyDepartment of dermatologyKreusch 1992 dermoscopy for melanoma317
96 melanomas, 221 non-melanoma
NR2
1 experienced
1 inexperienced
Kreusch 1992 dermoscopy for melanoma
Experienced:
Se: 98.9
Sp: 94.1
Inexperienced:
Se: 97.0
Sp: 94.2
Lorentzen 1999,68 DenmarkDepartment of dermatologyABCD rule of dermoscopy232NR8
4 experienced
4 inexperienced
ABCD rule of dermoscopy (cut-point ≥4.75)
Se: 59.0
Sp: 92.0
ABCD rule of dermoscopy (cut-point ≥5.45)
Se: 41.0
Sp: 98.0
Lorentzen 2000,53 DenmarkDepartment of dermatologyABCD rule of dermoscopy258
64 melanoma, 194 non-melanoma
NR3
Experienced
ABCD rule of dermoscopy (cut-point ≥4.75)
Se: 70.7
Sp: 88.0
Luttrell 2012,54 AustriaDepartment of dermatologyAC rule for dermoscopy200
25 melanoma, 178 non-melanoma
NR17
Lay persons
AC rule for dermoscopy
Se: 91.2
Sp: 94.0
Mackie 2002,55 ScotlandPigmented lesion clinicThe 3-colour dermoscopy test126
69 melanoma 57 non-melanoma
NR3
Experienced
The 3-colour dermoscopy test
Se: 97.0
Sp: 55.0
McGovern 1992,41 USADermatology clinic7-point checklist (clinical)
ABCD clinical rule
237
16 malignant, 221 non-melanoma
N=179
50% male
Mean age: 44
NR7-point checklist (clinical)
Se: 0.44
Sp: 0.94
Menzies 1996,85 AustraliaMelanoma unitMenzies 1996 dermoscopy for melanoma385
107 melanomas
NRNRMenzies 1996 dermoscopy for melanoma
Se: 92.0
Sp: 71.0
Menzies 2008567-point checklist for dermoscopy
3-point checklist of dermoscopy
Menzies 1996 dermoscopy for melanoma
Menzies 2008 dermoscopy for melanoma
Menzies 2008 dermoscopy for skin cancer
497
105 melanomas, 392 non-melanoma
NR12
Experienced
7-point checklist for dermoscopy
Se: 41.0
Sp: 83.0
3-point checklist of dermoscopy
Se: 50.0
Sp: 71.0
Menzies 1996 dermoscopy for melanoma
Se: 54.0
Sp: 76.0
Menzies 2008 dermoscopy for melanoma
Se: 70.0
Sp: 56.0
Menzies 2008 dermoscopy for skin cancer
Se: 95.0
Sp: 80.0
Menzies 201357ABCD rule of dermoscopy
7-point checklist for dermoscopy
3-point checklist of dermoscopy
Menzies 1996 dermoscopy for melanoma
CASH dermoscopy algorithm
Menzies 2013 dermoscopy for nodular melanoma
465
217 melanomas, 248 non-melanoma
NR12ABCD rule of dermoscopy
Se: 81.5
Sp: NR
7-point checklist for dermoscopy
Se: 94.4
Sp: NR
3-point checklist of dermoscopy
Se: 83.9
Sp: NR
Menzies 1996 dermoscopy for melanoma
Se: 98.4
Sp: NR
CASH dermoscopy algorithm
Se: 41.0
Sp: 83.0
Menzies 2013 dermoscopy for nodular melanoma
Se: 93.0
Sp: 70.0
Nachbar 1994,69 GermanyDepartment of dermatologyABCD rule of dermoscopy194
69 melanomas
NRNRABCD rule of dermoscopy (cut-point ≥5.45)
Se: 92.8
Sp: 91.2
Nilles 1994,86 GermanyDepartment of dermatologyNilles 1994 dermoscopy for melanoma260
72 melanomas, 188 non-melanoma
NRNRNilles 1994 dermoscopy for melanoma
Se: 90.0
Sp: 85.0
Osborne 1999,45 UKDepartment of DermatologyRevised 7-Point Checklist (clinical)778
778 melanomas, 0 non-melanoma
N=733
35% male
NRRevised 7-Point Checklist (clinical)
False negative rate: 18.5
Piccolo 2014,31 ItalyDepartment of dermatologyABCD rule of dermoscopy165
33 melanomas, 129 non-melanoma
N=165
59% male
Mean age: 43.5
4
3 dermatologists 1 FP
ABCD rule of dermoscopy
Se: 91.0
Sp: 52.0
Pizzichetta 2002,32 ItalyDepartment of oncologyABCD rule of dermoscopy129N=1232
Experienced
ABCD rule of dermoscopy (cut-point ≥4.75)
Se: 90.0
Sp: 43.0
ABCD rule of dermoscopy (cut-point ≥5.45)
Se: 90.0
Sp: 53.5
Rao 199765Department of dermatologyABCD rule of dermoscopy
ABCD clinical rule
73N=634
Experienced dermatologists
ABCD rule of dermoscopy (cut-point ≥4.75)
Se: 90.0
Sp: 57.0
ABCD clinical rule
Se: 84.0
Sp: 78.0
Skvara 2005,42 AustriaDepartment of dermatologyABCD rule of dermoscopy
7-point checklist for dermoscopy
325
63 melanomas, 262 non-melanoma
N=297
44% male
Mean age: 39
2
Experienced dermatologists
ABCD rule of dermoscopy (cut-point ≥4.75)
Se: 31.7
Sp: 87.3
7-point checklist for dermoscopy
Se: 11.1
Sp: 95.2
Soyer 2004,33 ItalyDepartment of dermatology3-point checklist of dermoscopy231
68 melanomas, 163 non-melanomas
N=225
49% male
6
Inexperienced
3-point checklist of dermoscopy
Se: 96.3
Sp: 32.8
Stolz 1994,70 GermanyDepartment of dermatologyABCD rule of dermoscopy157NRNRABCD rule of dermoscopy(cut-point ≥5.45)
Se: 97.9
Sp: 90.3
Strumia 2003,34 ItalyDepartment of dermatologyABCD rule of dermoscopy
ABCDE rule (dermoscopy)
49NR2
Thomas 1998,6 FranceDepartment of dermatologyABCDE clinical rule1140NRNRABCDE clinical rule (cut-point ≥2)
Se: 89.3
Sp: 65.3
Unlu 2014,43 TurkeyDepartment of dermatologyABCD rule of dermoscopy
7-point checklist for dermoscopy
3-point checklist of dermoscopy
CASH dermoscopy algorithm
115
24 melanomas, 91 non-melanoma
N=115
49% male
Mean age: 39
3
Experienced dermatoscopists
ABCD rule of dermoscopy
Se: 91.6
Sp: 60.4
7-point checklist for dermoscopy
Se: 79.1
Sp: 62.6
3-point checklist of dermoscopy
Se: 87.5
Sp: 65.9
CASH dermoscopy algorithm
Se: 91.6
Sp: 64.8
Wadhawan 2011,59 USAImages from library of skin cancer7-point checklist for dermoscopy347NRNR7-point checklist for dermoscopy
Se: 87.3
Sp: 71.3
Walter 2013,44 UKFamily practice7-point checklist (clinical)
Revised 7-point checklist (clinical)
1436
36 melanomas, 1400 non-melanoma
N=1182
35.9% male
Mean age: 44.7
NR7-point checklist (clinical)
Se: 80.6
Sp: 61.7
Revised 7-point checklist (clinical)
Se: 91.7
Sp: 33.1
Zalaudek 2006,60 29 CountriesPigmented lesion clinic3-point checklist for dermoscopy150
44 malignant, 106 non-melanoma
NR150
Varying levels of experience
3-point checklist for dermoscopy
Se: 94.0
Sp: 71.9
Impact Analysis Studies
Author year, CountryStudy designParticipant selectionLesionsInterventionControlOutcomes
Westerhoff 2000,62 Australia
Primary care
Controlled before and after74 FPsn=100 (50 melanoma, 50 non-melanoma)
Selected randomly from the Sydney Melanoma Unit image database
Educational intervention. FPs given educational material on Menzies 1996 rule, followed by a 1-hour
Presentation on surface microscopy
Usual careCorrect diagnosis of melanoma, percent (SD):
Intervention 75.9 (12)
Control 54.8 (22)
Correct diagnosis of non-melanoma, percent (SD):
Intervention 57.8 (14)
Control 55.8(15)
Walter 2012,63 England
Primary care
RCT15 FP practices1580 from 1297 patientsPatients assessed using the MoleMate system (SIAscopy with primary care scoring algorithm)Best practice (clinical history, naked eye examination, 7-checklist clinical)Primary, appropriateness of referral (defined as the proportion of referred lesions that secondary care experts decided to biopsy or monitor): no statistically significant difference between intervention and control; 56.8% vs 64.5%; difference −8.1% (95% CI −18.0% to 1.8%).
Secondary:
Appropriate management of benign lesions in primary care: no statistically significant difference between intervention and control (99.6% vs 99.2%, p=0.46).
Agreement with an expert decision to biopsy or monitor: no statistically significant difference between intervention and control (98.5% vs control 95.7%, p=0.26).
Patient satisfaction: more intervention patients ranked their consultation very good/excellent for thoroughness than control (83.1% vs 71.2%, p<0.001).
Patient anxiety: no statistically significant difference between intervention and control in anxiety scores (32.56 vs 34.72, p=0.013)
Argenziano 2006,72 Spain, Italy
Primary Care
RCT73 FPs2548 lesions from 2522 patients presenting to primary care with a pigmented skin lesion.
1203 lesions in dermoscopy group (six melanoma)
1345 lesions in control group (six melanoma)
Use of dermoscopy in addition to ‘naked-eye’ lesion screening.
Both groups received a 4 hours educational intervention incorporating clinical examination and use of the 3-point checklist (dermoscopy algorithm)
Naked-eye screening alone.Primary outcome:
Referral accuracy of PCPs (defined as the ability of the PCP to correctly determine a lesion may be malignant or benign, when the gold standard is diagnosis by a second expert clinician) reported as sensitivity, specificity, PPV, NPV.
Significant difference in sensitivity (dermoscopy 79.2%, naked eye 54.1%, p=0.002) and negative predictive value (dermoscopy 9801%, naked eye 95.8%, p=0.004)
Secondary outcome:
Number of malignant tumours missed by PCPs using naked-eye examination (n=23) and using dermoscopy (n=6) (p=0.002)
  • ABC, Asymmetry, irregular Borders, more than one or uneven distribution of Color; ABCD, Asymmetry, irregular Borders, more than one or uneven distribution of Colour, or a large (greater than 6 mm) Diameter; ABCDE, Asymmetry, irregular Borders, more than one or uneven distribution of Colour, or a large (greater than 6mm) Diameter, Evolution of moles; AC, asymmetry, colour variation; CASH, colour, architecture, symmetry, and homogeneity; CPR, clinical prediction rules, ELM, epiluminescence microscopy; FP, family physicians; PCP, primary care physicians; PPV, positive predictive value; NPV, negative predictive value; NR, Not reported; RCT, randomised controlled trials; Se, sensitivity; Sp, specificity.