Measuring pain (IMAGE) Tufts University Caption Over 70% of chronic pain cases are women. Effective treatment of pain has been hampered by an entirely subjective protocol for measuring pain severity, with variation introduced in patient assessments and physician biases. Credit Arocamora, CC BY-SA 4.0 Usage Restrictions Credit must be given to the creator. Adaptations must be shared under the same terms. License CC BY-SA Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.