2000-2004 2005-2009 2010-2012
  (Asuquo et al.) (Asuquo et al.)  
Total No. 6 14 17
Mean Age (yrs) 42.2 44.9 45.7
Latency period 18.5 years 17.1 years 16.3 years
Mean age at the time of injury 23.7 years 27.8 years 29.4 years
Sex 5 male 9 male, 5 female 4 male, 3 female
Percentage of SCC 30 36.8 46.7
Percentage of skin malignancy 9.5 14.3 15.9
Histology SCC SCC, 13 Basaloid SCC-1 SCC
Table 4: Marjolin’s ulcer compared with previous studies in UCTH, Calabar, Nigeria.