Welcome to the Nurses' Health Study Questionnaire website.
To start, enter your Participant ID and Date of Birth.

• If you clicked a link in your email, your Participant ID will already be filled in.
  
• If you have a paper form, your Participant ID is printed on your survey.
  
• If you can't find your Participant ID, please check the FAQ page or please click here to send us an e-mail (or send an email to us directly at nhs2@channing.harvard.edu) with your name and date of birth. We will reply with your ID as soon as possible.
• If you need to step away, or your session expires, please just return here and log in.

ATTENTION EUROPEAN UNION (EU) RESIDENTS:

Effective May 2018, the General Data Protection Rules (GDPR) apply to participants who are currently residing in EU countries. If you are a current EU resident, please review our website privacy policy (particularly Section 8), which outlines how your data will be processed by going to this link.

Questionnaire responses will remain strictly confidential and will be used only for medical statistical purposes. For further information on confidentiality and privacy, please click here.
If you have any questions, please check the FAQ page or please click here to send us an e-mail (or send an email to us directly at nhs2@channing.harvard.edu) or call us at (617) 525-2279, 9am-4pm Eastern time.