Alcohol Consumption and Age-Specific Risk of Esophageal Cancer: Prospective Cohort Study

Area of Science:

• Epidemiology
• Oncology
• Public Health

Background:

• Esophageal cancer poses a significant global health burden, with China experiencing high incidence and mortality rates.
• Alcohol consumption is a known risk factor, but its impact across different age groups for esophageal cancer remains unclear.

Purpose of the Study:

• To investigate the age-specific associations between alcohol consumption and esophageal cancer risk.
• To understand how alcohol's impact on esophageal cancer risk varies across different adult age demographics.

Main Methods:

• Utilized data from the China Kadoorie Biobank, a large prospective cohort study.
• Analyzed data from 489,664 adults aged 30-79, employing Cox proportional hazards models.
• Stratified analyses by age group to assess alcohol consumption's effect on esophageal cancer incidence.

Main Results:

• Esophageal cancer incidence increased with alcohol consumption frequency in participants under 70.
• The relative risk of esophageal cancer for weekly drinkers was highest in the youngest age group (30-49 years) and decreased with age.
• A sharp increase in incidence rate was observed among weekly drinkers transitioning from the 30-49 to the 50-54 age groups.

Conclusions:

• Alcohol consumption has an age-modifying effect on esophageal cancer risk, posing a greater threat to younger adults.
• Findings emphasize the need for age-specific public health interventions to curb alcohol use and enhance esophageal cancer screening and prevention efforts.