Related Experiment Video
Updated: Mar 27, 2026

Changes in Mammary Gland Morphology and Breast Cancer Risk in Rats
Published on: October 16, 2010
Dairy consumption and lung cancer risk: a meta-analysis of prospective cohort studies
1Emergency Department, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, People's Republic of China.
Background:
Lung cancer risk is the leading cause of cancer-related deaths worldwide. We conducted a meta-analysis to evaluate the relationship between dairy consumption and lung cancer risk.
Methods:
The databases included EMBASE, Medline (PubMed), and Web of Science. The relationship between dairy consumption and lung cancer risk was analyzed by relative risk or odds ratio estimates with 95% confidence intervals (CIs). We identified eight prospective cohort studies, which amounted to 10,344 cases and 61,901 participants.
Results:
For milk intake, relative risk was 0.95 (95% CI: 0.76-1.15); heterogeneity was 70.2% (P=0.003). For total dairy product intake, relative risk was 0.96 (95% CI: 0.89-1.03), heterogeneity was 68.4% (P=0.004).
Conclusion:
There was no significant association between dairy consumption and lung cancer risk.
Related Concept Videos
Statistical Methods for Analyzing Epidemiological Data
Cancer Prevention
Some...
Observational Studies
There are three types of observational studies – Prospective, retrospective, and cross-sectional.
Prospective Study
Prospective studies, also known as longitudinal or cohort studies, are carried out by collecting future data from groups sharing similar characteristics. One...
Longitudinal Research
Bias in Epidemiological Studies