Association Between Level of Expression of Human Epidermal Growth Factor Receptor 2 (Her-2 Neu) And Age Among Breast Cancer Patients

Abstract

Objective: To determine the association between human epidermal growth factor receptor 2 with age among patients
presenting with breast cancer.

Study Design: Comparative cross-sectional study.

Place and Duration of Study: Medical Oncology Department, Jinnah Postgraduate Medical Centre, Karachi Pakistan, from
Aug 2019-Jan 2020.

Methodology: Total 194 females of age 20-85 years with confirmed diagnosis of breast cancer were included in the study. The immunohistochemistry was done for the status of estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2 and the validation of human epidermal growth factor receptor 2 was done by Fluorescent In situ
Hybridization technique in each female.

Results: The patient’s age was from 24-82 years old with mean age of 46.57±11.45 year. Out of 194, 108 cases had positive
progesterone receptor expression (55.7%), 114 had positive estrogen receptor expression (58.8%) and 67 had positive human epidermal growth factor receptor 2 expression (34.5%). The females of age greater 46 years were more likely to be human epidermal growth factor receptor 2 positive as compared to females of age less and equal to 46 years.

Conclusion: The results showed that females with age more than 40 years have significant association with human epidermal growth factor receptor 2, whereas age is an independent variable with regards to estrogen receptor and progesterone receptor
status.