Table 1 Unadjusted and adjusted Cox proportional hazards regression analysis of 5-year survival of patients with cutaneous malignant melanoma

From: Recent trends in cutaneous malignant melanoma in the Yorkshire region of England; incidence, mortality and survival in relation to stage of disease, 1993–2003

Variable

N

Unadjusted HR (95% CI)

Adjusted HR a (95% CI)

Age

 Change per year

3127

1.05 (1.05–1.06)

1.04 (1.04–1.05)

Sex

   

 Male

1238

1.00

1.00

 Female

1899

0.57 (0.48–0.67)

0.67 (0.56–0.80)

Breslow b

 <1.5 mm

2012

1.00

1.00

 1.5–4.0 mm

757

5.58 (4.49–6.92)

3.62 (2.85–4.60)

 >4.0 mm

358

12.23 (9.78–15.31)

6.06 (4.64–7.93)

Site b

 Head and neck

553

1.00

1.00

 Lower limb

1104

0.48 (0.38–0.60)

0.90 (0.70–1.17)

 Trunk

832

0.65 (0.52–0.82)

1.16 (0.91–1.50)

 Upper limb

638

0.50 (0.39–0.65)

0.91 (0.70–1.20)

Histology b

 Acral lentiginous

63

1.00

1.00

 Lentigo maligna

183

0.64 (0.36–1.14)

0.82 (0.44–1.52)

 Nodular

753

1.52 (0.94–2.44)

1.28 (0.78–2.09)

 Superficial spreading

2128

0.36 (0.22–0.57)

1.02 (0.62–1.68)

IMD quintile

 1 (affluent)

1014

1.00

1.00

 2

892

1.01 (0.80–1.27)

1.06 (0.84–1.33)

 3

475

1.18 (0.91–1.53)

1.08 (0.83–1.41)

 4

455

1.65 (1.30–2.11)

1.53 (1.20–1.96)

 5 (deprived)

274

1.63 (1.22–2.17)

1.40 (1.05–1.88)

Year

 Change per year

3127

1.00 (0.97–1.03)

1.00 (0.97–1.03)

  1. HR=hazard ratio; IMD=Index of Multiple Deprivation.
  2. aEach variable is adjusted for all other covariates in the table.
  3. bWhere information was missing or recorded as ‘unspecified’, the records have been excluded from the analysis.