Table 3 Univariate analysis of overall survival in melanoma patients.

Age (years) (≥60 versus <60)

0.591

0.320–1.092

0.093

Gender (male versus female)

0.769

0.433–1.364

0.368

Smoker (yes versus no)

1.060

0.257–4.368

0.936

Drinking (yes versus no)

0.423

0.152–1.180

1.000

BMI (kg/m²)

0.945

0.865–1.033

0.215

FPG (mmol/L)

1.360

0.897–2.063

0.148

Albumin (g/L)

1.075

1.009–1.145

0.026

WBC (×10⁹/L)

0.894

0.756–1.057

0.189

Neutrophils (×10⁹/L)

0.931

0.766–1.133

0.477

Lymphocytes (×10⁹/L)

0.612

0.359–1.042

0.071

NLR

1.105

0.941–1.298

0.224

PLR

1.004

0.978–1.013

0.613

Hemoglobin (g/dl)

0.996

0.983–1.009

0.562

Platelet count (×10⁹/L)

1.001

0.997–1.005

0.681

MPV (fL)

0.918

0.737–1.143

0.444

PDW (%) (>17.2 versus ≤17.2)

2.857

1.612–5.063 

<0.001

Tumor location (Sun-exposed versus Sun-protected)

1.721

0.771–3.843

0.185

Ulceration (Yes versus No)

0.675

0.361–1.261

0.218

Tumor subtype (SSM + NM versus ALM + LMM + others)

0.592

0.332–1.055

0.075

Tumor Size (mm) (≥2.0 versus<2.0)

1.102

0.616–1.974

0.743

Lymph node metastasis (Yes versus No)

2.889

1.625–5.136

<0.001

Distant metastasis (Yes versus No)

1.219

0.546–2.721

0.629

Clinical stage (III/IV versus I/II)

3.386

1.908–6.009

<0.001