Research Article

Epidemiology and Survival Outcomes for Eyelid Primary Malignant Melanoma: An Analysis of 1397 Cases in the SEER Database

Table 2

Univariate analysis of factors affecting 5-year and 10-year OS and DSS of eyelid PMM.

CharacteristicsOSLog rankDSSLog rank
5-year10-year value5-year10-year value

Overall70.551.890.686.1

Sex
Male67.349.4Reference89.586.2Reference
Female74.154.40.06899.297.60.317

Race
White69.850.8Reference90.285.7Reference
Others90.181.10.00910096.00.052

Ethnicity
Hispanic72.763.7Reference91.989.3Reference
Non-Hispanic70.451.10.54290.585.90.714

Age, y
<4094.290.9Reference95.492.0Reference
40–5986.875.70.00593.086.60.186
60–7976.057.6<0.00191.888.50.342
80+43.913.7<0.00184.379.90.007

Laterality
Left72.253.4Reference91.688.0Reference
Right69.550.80.50189.283.90.190

Histology
Malignant melanoma, NOS69.351.8Reference88.884.8Reference
LMM73.554.20.69299.094.8<0.001
SSM82.158.80.00395.489.20.006
NM56.536.70.00176.471.50.004

AJCC stage
I79.361.1Reference97.393.9Reference
II64.453.7<0.00180.876.6<0.001
III57.046.0<0.00175.9N/A<0.001
IV40.020.0<0.00150.3N/A<0.001

Stage at diagnosis
Localized75.956.1Reference94.790.8Reference
Regional39.826.2<0.00162.754.5<0.001
Distant28.417.0<0.00141.433.1<0.001

Metastasis at diagnosis
None72.1N/AReference92.9N/AReference
Distant40.0N/A<0.00150.0N/A<0.001

Surgery
Yes71.953.1Reference91.186.6Reference
No60.728.6<0.00183.677.20.009

Radiation chemotherapy
Yes59.937.9Reference74.249.5Reference
No71.552.2<0.00191.187.3<0.001

Chemotherapy
Yes69.646.4Reference77.446.4Reference
No70.651.80.42590.886.6<0.001

OS, overall survival; DSS, disease-specific survival; PMM, primary malignant melanoma; NOS, not otherwise specified; LMM, lentigo malignant melanoma; SSM, superficial spreading melanoma; NM, nodular melanoma; AJCC, American Joint Committee on Cancer. Bold letters indicate statistical significance compared with references (). ; ; .