Table 4

Multivariable analysis: patients aged 75 years and younger

VariableNo. of patientsOR (95% CI)p value
SLNB doneSLNB not done
Location of primary tumour
 Trunk102930.33 (0.19–0.57)< 0.001
 Head and neck38550.17 (0.09–0.32)< 0.001
Breslow depth, mm
 1.01–4.02367327.6 (14.9–54.1)< 0.001
 > 4.0461917.8 (7.6–43.7)< 0.001
Ulceration74212.11 (1.10–4.14)0.028
Mitotic rate, ≥ 1 mitoses/mm22671381.90 (1.00–3.33)0.040
  • CI = confidence interval; OR = odds ratio; SLNB = sentinel lymph node biopsy.