Several methods are employed to preserve privacy in epidemiological studies:
Anonymization: Removing personally identifiable information (PII) from data sets to ensure that individuals cannot be identified. Pseudonymization: Replacing PII with pseudonyms or codes that can only be re-identified with additional information kept separately. Data Encryption: Using encryption techniques to protect data during storage and transmission. Access Controls: Limiting access to sensitive data to authorized personnel only. Informed Consent: Ensuring that participants are fully aware of how their data will be used and have given their explicit consent.