Characteristics of non-small cell lung cancer: differences by sex and hormonal status in a Mexican population

Salud Publica Mex. 2019 May-Jun;61(3):265-275. doi: 10.21149/10094.

Abstract

Objective: To analyze the differences in the clinico-pathological and molecular characteristics of non-small cell lung cancer (NSCLC) as well as the clinical outcome of patients by sex and hormonal status.

Materials and methods: We performed a retrospective study among 1 104 NSCLC patients. Clinic-pathologic data was recorded and survival outcomes were compared between male and female sex patients, and further by pre and postmenopausal status in females.

Results: Women were significantly more likely to be non-smokers (p<0.001), had higher frequency of wood-smoke exposure (p<0.001), EGFR-sensitizing mutations (p<0.001), had better performance status (p=0.020) and had a better overall survival (OS) compared to men (p=0.021). Differences were found also by hormonal status, postmenopausal women had a longer OS compared to premenopausal women (31.1 vs. 19.4 months p=0.046).

Objetivo: Analizar las diferencias en las características clínico-patológicas, moleculares y en la evolución del cáncer de pulmón de células no pequeñas (CPCNP) por sexo y estadio hormona.

Material y métodos: Estudio retrospectivo (N=1 104) en pacientes con CPCNP. Se recabaron datos clínico-patológicos y desenlaces de sobrevida y se compararon entre hombres y mujeres, y entre mujeres pre y postmenopáusicas.

Resultados: . Las mujeres de este estudio tuvieron significativamente mayor probabilidad de ser no fumadoras (p<0.001), tener exposición a humo de leña (p<0.001), mutaciones en EGFR (p<0.001), mejor estado funcional (p=0.020), y una mejor sobrevida global (SG) en comparación con los hombres (p=0.021). Estas diferencias también se encontraron en cuestión al estatus hormonal, con las mujeres postmenopáusicas presentando una mayor sobrevida en comparación con las premenopáusicas (31.1 vs.19.4 meses; p=0.046).

Conclusiones: Los presentes resultados apoyan las diferencias en la presentación del CPCNP de acuerdo con el sexo y estatus hormonal.

Keywords: lung carcinoma, non-small-cell; men; postmenopausal; premenopausal; women.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Aged
  • Carcinoma, Non-Small-Cell Lung* / diagnosis
  • Carcinoma, Non-Small-Cell Lung* / mortality
  • Female
  • Humans
  • Lung Neoplasms* / diagnosis
  • Lung Neoplasms* / mortality
  • Male
  • Mexico
  • Middle Aged
  • Postmenopause
  • Premenopause
  • Retrospective Studies
  • Sex Factors
  • Survival Rate