Nasopharyngeal cancer patients aged between 18 and 90 years old Air pollution, Nasopharyngeal carcinoma, PM2.5, Survival
Conditions
Interventions
The annual average concentration of fine and coarse particulate matter exposure of each participant is divided into four levels based on quartiles, defined as the 1st, 2nd, 3rd, and 4th concentration
Other
1st, 2nd, 3rd, and 4th concentration of fine and coarse particulate matter exposure groups.
Sponsors
None
Eligibility
Sex/Gender
All
Age
18 Years to 90 Years
Inclusion criteria
Inclusion criteria: 1. Nasopharyngeal cancer patients 2. Aged between 18 and 90 years old 3. Patients were treated at Maharal Nakorn Chiang Mai Hospital between January 2019 and December 2022 4. Patient had follow-up through December 2025.
Exclusion criteria
Exclusion criteria: Patients will be excluded if they 1. have a concurrent or previous malignancy 2. have metastatic disease at initial diagnosis.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Overall and disease-free survival 3 years and 5 years 3-year and 5-year survival percent | — |
Secondary
| Measure | Time frame |
|---|---|
| None None None | — |
Countries
Thailand
Contacts
Public ContactPichit Sittitrai
Department of Otolaryngology, Faculty of Medicine, Chiang Mai University
Outcome results
None listed