Letters to Potential Users of the HPQ:
- Background Information: Ronald C. Kessler; July 1, 2002
- Value Proposition: Ronald C. Kessler; July 1, 2002
- News notes: The Clinical Trials Version of the HPQ: Ronald C. Kessler; August 1, 2002
- Commonly Asked Questions About the Market Surveys: Ronald C. Kessler, August 1, 2002
- HIPAA Guidelines and Participation in the Harvard Health Care and Work Productivity Initiative: Paul D. Cleary and Ronald C. Kessler; August 20, 2002

HPQ scoring documents:
- HPQ Scoring Document: Ronald C. Kessler: March 8, 2003
- HPQ Short Form (Absenteeism and Presenteeism Questions and Scoring Rules)

HPQ survey versions:
- HPQ Employee Version - updated May 11, 2007
- HPQ Short Form (Absenteeism and Presenteeism Questions with Scoring Rules)
- HPQ Clinical Trials 7-Day Version 
- HPQ Clinical Trials 28-Day Version

Translated versions of the HPQ survey:
- Spanish HPQ Clinical 7-Day Version

For more information on web-based versions contact Elaine Veracruz at veracruz@hcp.med.harvard.edu.